Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-609.09.jpeg Classification==Postflight Photo, LaRC #==L92-17835 Photo, JSC #==None Photo, KSC #==KSC-390C-609.09 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The postflight photograph was taken in the Orbiter Processing Facility during the period when the LDEF was being transferred from the Orbiter cargo bay to the KSC Payload Transporter. The Biostack experiment appears to have survived the extended mission with no visible damage. The Kapton window covers for two (2) of the experiment housings seem to be intact and all hardware is securely in place. The once-white experiment housing is now coated with a light brown or tan stain. The base plate and the tray sidewalls also have a thin coat of the stain on the exposed surfaces. The vertical thermal isolation plateis secure with all fasteners in place. Photo, Experiment(s) shown==AO015 : Free-Flyer Biostack Experiment Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-029.jpeg Classification==Flight Photo, LaRC #==L90-10498 Photo, JSC #==S32-89-029 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm, seen along the left side of the photograph, and provides an in-orbit view of the C02 integrated tray. When comparing this photograph with the pre-launch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the experiment hardware within the tray. The Biostack experiment appears to have survived the extended mission with no visible damage. The Kapton covers seem to be intact and all hardware is securely in place. A brown stain can be seen on the once-white experiment housing. The base plate and the tray sidewalls also have a coat of the stain on the exposed surfaces. The shadow of the adjacent experiment prevents an assessment of the condition of the vertical thermal isolation plate. Photo, Experiment(s) shown==AO015 : Free-Flyer Biostack Experiment Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-144.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07057 Photo, JSC #==None Photo, KSC #==KSC-384C-144.08 Photo, PI #==No value in DB Photo, Date Taken==01/11/1984 Photo, Description== The prelaunch photograph provides a view of the three (3) experiments integrated into a six (6) inch deep LDEF experiment tray. The AO015 experiment is located in the left one third (1/3rd) section, the AO187-02 is located in the center one third (1/3rd) section and the EECC containing the M0006 experiment occupies the remaining section of the tray. The Biostack experiment located near the LDEF trailing edge consist of eight (8) hermetically sealed aluminum housings coated with Chemglaze II A-276 white paint and mounted to an anodized aluminum base plate. A vertical aluminum plate is used to thermally isolate the Biostack experiment from the adjacent experiments that do not have the same thermal constraints. Nonmagnetic stainless steel fasteners were used for all mechanical joint assemblies. The two (2) Housings in the second row from the top have windows covered with Kapton H foil that provides low radiation absorption and a light filter. The housing on the right has an anodized aluminum spherical cover with open area sufficient to limit incoming radiation from earth albedo. Photo, Experiment(s) shown==AO015 : Free-Flyer Biostack Experiment Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1938.09.jpeg Classification==Postflight Photo, LaRC #==L91-11607 Photo, JSC #==None Photo, KSC #==KSC-390C-1938.09 Photo, PI #==No value in DB Photo, Date Taken==03/14/1990 Photo, Description== The post flight photograph was taken in the SAEF II at KSC after the experiment tray was removed from the LDEF. The experiment tray flanges and sidewalls have become discolored with a light tan stain except where the tray clamp blocks were located. The Biostack experiment appears to have survived the extended mission with no visible damage. The experiment housings are intact and all hardware is securely in place. The detector housings appear to be discolored with a stain similar to that on the tray hardware. The exposed Kapton H foil covering windows in two (2) detector housings do not appear to have sustained damage dur ing the extended mission. The perforated dome on two (2) of the detector housings has a slight tan discoloration but no indication of damage. Photo, Experiment(s) shown==AO015 : Free-Flyer Biostack Experiment Associated Tray(s)==Tray Location: G02 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-068.jpeg Classification==Flight Photo, LaRC #==L90-10392 Photo, JSC #==S32-76-068 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. The paint dots on the experiment tray clamp blocks, originally white, have become discolored. The LDEF end frame structure also is discolored in locations adjacent to the edge of the black thermal panels. The Biostack experiment appears to have survived the extended mission with no visible damage. The experiment housings are intact and all hardware is securely in place. The exposed Kapton H foil covering windows in two (2) detector housings are deformed due to a positive internal pres sure but do not appear to have sustained damage. The Kapton H foil covers are visible beneath the perforated dome on two (2) of the detector housings with no indication of damage. Photo, Experiment(s) shown==AO015 : Free-Flyer Biostack Experiment Associated Tray(s)==Tray Location: G02 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-14.09.jpeg Classification==Prelaunch Photo, LaRC #==L84-07011 Photo, JSC #==None Photo, KSC #==KSC-384C-14.09 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the Bio stack experiment containers mounted on a baseplate and installed in a six (6) inch deep LDEF end corner experiment tray. Non-magnetic stainless steel fasteners were used in all mechanical joint assemblies. The Biostack experiment consist of twenty (20) detector units in hermetically sealed aluminum housings mounted on aluminum baseplates. Eight (8) detector units are mounted on a baseplate and installed in a six (6) inch peripheral tray adjacent to the LDEF trailing edge and twelve (12) detector units mounted on a baseplate are located in the tray shown and will be installed on the earth facing end of the LDEF. The experiment housings and the mounting plate have a thin chro mic anodize surface coating to meet thermal requirements. Two (2) housings have windows cov ered with Kapton H foil that provides a light filter with low radiation absorption. Two (2) additional housings have windows covered with Kapton H foil but also have perforated aluminum domes to limit incoming earth albedo. Photo, Experiment(s) shown==AO015 : Free-Flyer Biostack Experiment Associated Tray(s)==Tray Location: G02 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1069.10.jpeg Classification==Postflight Photo, LaRC #==L90-13490 Photo, JSC #==None Photo, KSC #==KSC-390C-1069.10 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF. The High-Toughness Graphite-Epoxy Composite Experiment remains intact. The temperature indicators remain bonded to each of the specimen and no changes to the specimen or the support structure are visible. The experiment mounting hardware and fasteners appear to be in excellent condition. Photo, Experiment(s) shown==AO019 : Influence of Extended Exposure in Space on Mechanical Properties of High-Toughness Graphite-Epoxy Composite Material Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-052.jpeg Classification==Flight Photo, LaRC #==L90-10502 Photo, JSC #==S32-89-052 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the orbiter aft flight deck during the LDEF retrieval. During the mission, the tray surface was at an angle of approximately ninety-eight (98) degrees to the orbital velocity vector and therefore exposed to a lower atomic oxygen flux than if parallel with the velocity vector. A very light stain is present on the white paint dots on experiment tray clamps along the lower edge of the tray. The High-Toughness Graphite-Epoxy Composite Experiment remains intact. The temperature indicators remain bonded to each of the specimen and no changes to the specimen or the support structure are visible. Photo, Experiment(s) shown==AO019 : Influence of Extended Exposure in Space on Mechanical Properties of High-Toughness Graphite-Epoxy Composite Material Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-221.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07093 Photo, JSC #==None Photo, KSC #==KSC-384C-221.11 Photo, PI #==No value in DB Photo, Date Taken==01/13/1984 Photo, Description== The prelaunch photograph shows the positions of the three (3) LDEF experiments in a three (3) inch deep tray. The AO023 experiment is located in the left one third (1/3rd) section, the AO180 experiment occupies the center one third (1/3rd) section plus the lower one half (1/2) of the right section and the AO019 experiment is shown in the top right section of the tray. The High-Toughness Graphite-Epoxy Composite experiment consist of six (6) fracture toughness specimen and nine (9) tensile modulus specimen mounted so they will not be subjected to high stresses and/or excessive heating during the mission. The flat composite test specimen, approximately 1.1mm thick, are mounted to the support structure with an aluminum strip/spacer system and non-magnetic stainless steel fasteners. Passive temperature indicators are located on each of the test specimen to provide a record of the highest temperature experienced by that specimen. Photo, Experiment(s) shown==AO019 : Influence of Extended Exposure in Space on Mechanical Properties of High-Toughness Graphite-Epoxy Composite Material Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-065.jpeg Classification==Flight Photo, LaRC #==L90-10416 Photo, JSC #==S32-77-065 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C03 integrated tray. When comparing this photograph with the prelaunch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The MAP experiment die-cast aluminum frames, fasteners and polished aluminum stop plate are coated with the brown stain. The detector bond joints and foil materials appear to be intact and have maintained thier integrity in all eight visible stacks. The blue tint seen on the detector foils and also on the polished aluminum stop plates between the detector stacks is the reflection of the sky on the metallic surfaces. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-15.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07015 Photo, JSC #==None Photo, KSC #==KSC-384C-15.01 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Multiple Foil Microabrasion Package (MAP) Experiment, located in the left hand 1/3rd tray section, consist of thin film detectors bonded to brass mesh supports and the support mesh bonded to die-cast aluminum frame. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The different materials and manufacturing processes, rolling, hammering, electro-plating, etc., are responsible for the different colors and textures seen in the eight (8) pie-shaped frames. The polished aluminum stop plate is visible between the two (2) sets of four detector stacks. Nonmagnetic stainless steel fasteners are used for attaching the frame stacks to the mounting plate and the mounting plate to the tray structure. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1558.02.jpeg Classification==Postflight Photo, LaRC #==L91-09090 Photo, JSC #==None Photo, KSC #==KSC-390C-1558.02 Photo, PI #==No value in DB Photo, Date Taken==03/05/1990 Photo, Description== The MAP experiment surfaces are coated with the brown contamination stain seen on other experiments on or near the trailing edge of the LDEF. The stain seems darker on the surfaces nearer the base of the tray, the polished aluminum stop plate. Considerable staining is seen along the bond-line between the support mesh and diecast frame where the adhesive may not have been completely cleaned during prelaunch cleaning. The experiment has no visible damage, the die-cast frame, the mesh, the detector foils and their bond joints seem to be intact. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1030.09.jpeg Classification==Postflight Photo, LaRC #==L90-13407 Photo, JSC #==None Photo, KSC #==KSC-390C-1030.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken prior to the experiment tray being removed from the LDEF. The tray corner clamp blocks are un-anodized aluminum and that alone accounts for the major difference in color between the corner clamp blocks and the center clamp blocks. The MAP experiment, located in the left end of the integrated tray, shows signs of contamination but otherwise seems intact. The mesh support, the detector foils and the bond joints are intact and show no sign of physical failure. There are some darker contamination stains in areas on the diecast aluminum frames where adhesive residue remained after prelaunch cleaning. Some color differences are observed when comparing this photograph to the prelaunch and flight photographs. These differences seem to be due to lighting direction and intensity as well as colors of objects in the surrounding area. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-100.jpeg Classification==Flight Photo, LaRC #==L90-10451 Photo, JSC #==S32-78-100 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C09 integrated tray. When comparing this photograph with the prelaunch photograph, very little difference can be seen. A brown stain is visible around some of the fasteners and on mounting plates. The stain has been attributed to outgassing and contamination from the LDEF and experiment related materials being flown. When compared to the prelaunch photograph, the C09 integrated tray seems to be in excellent condition. The MAP experiment die-cast aluminum frames, fasteners and polished aluminum stop plate seem to be in excellent shape. The detector bond joints and foil materials appear to be in-tact and have maintained thier integrity in all eight visible stacks. The white color seen on some detector foils and also on the polished aluminum stop plates between the detector stacks is a reflection of the Orbiter's cargo bay liner in the metallic surfaces. The dark gray color of the die-cast aluminum frames is thought to be caused by effects of the on orbit lighting, direction and intensity. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-14.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07005 Photo, JSC #==None Photo, KSC #==KSC-384C-14.03 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Multiple Foil Microabrasion Package (MAP) Experiment, located in the left hand 1/3rd tray section, consist of thin film detectors bonded to brass mesh supports and the support mesh bonded to die-cast aluminum frame. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The different materials and manufacturing processes, rolling, hammering, electro-plating, etc., are responsible for the different colors and textures seen in the eight (8) pie-shaped frames. The polished aluminum stop plate is visible between the two (2) sets of four detector stacks. Nonmagnetic stainless steel fasteners are used for attaching the frame stacks to the mounting plate and the mounting plate to the tray structure. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1069.10.jpeg Classification==Postflight Photo, LaRC #==L90-13490 Photo, JSC #==None Photo, KSC #==KSC-390C-1069.10 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF. The MAP experiment has no visible damage, the die-cast aluminum frame, the brass support mesh, the detector foils and the bond joints seem to be intact. Discolorations on the four (4) diecast frames with the detector and support material adhesive joint beneath the frame appear darker post-flight. The four (4) die-cast frames with the detector and support material on top of the frame have discolorations on the frame and the brass mesh material. The discolorations appear along the bond line between the support mesh and die-cast frame where the adhesive may not have been completely cleaned from the surface during pre-launch cleaning. The bottom edge of the experiment baseplate is mirrored on the tray sidewall. The other areas of the baseplate are shadowed and appear darker. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-221.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07093 Photo, JSC #==None Photo, KSC #==KSC-384C-221.11 Photo, PI #==No value in DB Photo, Date Taken==01/13/1984 Photo, Description== The prelaunch photograph shows the positions of the three (3) LDEF experiments in a three (3) inch deep tray. The AO023 experiment is located in the left one third (1/3rd) section, the AO180 experiment occupies the center one third (1/3rd) section plus the lower one half (1/2) of the right section and the AO019 experiment is shown in the top right section of the tray. The Multiple Foil Microabrasion Package (MAP) Experiment, located in the left one third (1/3rd) tray section, consist of thin film detectors bonded to brass mesh supports and the support mesh bonded to die-cast aluminum frame. Four (4) stacks of detectors have the detector foil and support mesh bonded to the out side of the die-cast frame, those with the brass support mesh clearly visi- ble, and four (4) have the detector foil and support mesh on the inside. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The different materials and manufacturing processes, rolling, hammering, electro-plating, etc., are responsible for the different colors and textures seen in the eight (8) pie-shaped frames. The polished aluminum stop plate is visible between the two (2) sets of four detector stacks. Discoloration is visible on the die-cast frames with the detector foil and support mesh adhesive joint under the frame. Non-magnetic stainless steel fasteners are used for attaching the frame stacks to the mounting plate and the mounting plate to the tray structure. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-052.jpeg Classification==Flight Photo, LaRC #==L90-10502 Photo, JSC #==S32-89-052 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. During the mission, the tray surface was at an angle of approximately ninety-eight (98) degrees to the orbital velocity vector and therefore exposed to a lower atomic oxygen flux than if parallel with the velocity vector. A very light stain is present on the white paint dots on experiment tray clamps along the lower edge of the tray. Changes to the MAP experiment die-cast aluminum frames, fasteners and polished aluminum stop plate are difficult to detect. The die-cast frames have areas where discoloration observed during the prelaunch inspection seem to be darker. The detector bond joints and foil materials appear intact at all eight visible stacks locations. The irregular white shape on the tray sidewall above the experiment detector stack seems to be caused by the reflection of sunlight from the aluminum base plate onto the tray sidewall. At the top edge of the adjacent detector stack, the sunlight reflected from the top flange of the die-cast aluminum frame on the detector foil material highlights the brass mesh support. The four (4) detector stacks where the die-cast frames appear to be a lighter color have the detector foil material and the brass support mesh bonded to the far side of the frame, where as, the four (4) darker appearing stacks have the detector foils and brass mesh bonded to the near side of the frame. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.09.jpeg Classification==Postflight Photo, LaRC #==L90-13439 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF. The Multiple Foil Microabrasion Package (MAP) Experiment (AO023) experiment is located in the left one third (1/3rd) section, the Balloon Materials Degradation Experiment (S1006) occupies the center one third (1/3rd) section, the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-2) is located in the lower one half (1/2) of the right section and the Ion Beam Textured and Coated Surfaces Experiment (S1003) is shown in the top right section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block is white, paint on the left-center clamp block is lightly discolored and paint on the top-right clamp block is heavily discolored. The MAP experiment consist of thin film detectors bonded to brass mesh supports and the mesh support bonded to a die-cast aluminum frame. Three (3) stacks of detectors have the detector foil and support mesh bonded to the out side of the die-cast frame, those with the brass support mesh clearly visible, and five (5) have the detector foil and support mesh on the inside. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The MAP experiment has no visible damage, the die-cast aluminum frame, the brass support mesh, the detector foils and the bond joints seem to be intact. Discolorations on the die-cast frames with the detector and support material adhesive joint beneath the frame appear darker post-flight. The die-cast frames with the detector and support material on top of the frame have discolorations on the frame and the brass mesh material. The discolorations appear along the bond line between the support mesh and die-cast frame where the adhesive may not have been completely cleaned from the surface during post assembly cleaning. The bottom edge of the experiment baseplate is mirrored on the tray sidewall. The other areas of the baseplate are shadowed and appear darker. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.10.jpeg Classification==Prelaunch Photo, LaRC #==L84-07068 Photo, JSC #==None Photo, KSC #==KSC-384C-193.10 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph shows the positions of the four (4) LDEF experiments in a three (3) inch deep tray. The Multiple Foil Microabrasion Package (MAP) Experiment (AO023) is located in the left one third (1/3rd) section, the Balloon Materials Degradation Experiment (S1006) occupies the center one third (1/3rd) section, the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section and the Ion Beam Textured and Coated Surfaces Experiment (S1003) is shown in the top right section of the tray. The MAP experiment, located in the left one third (1/3rd) tray section, consist of thin film detectors bonded to brass mesh supports and the mesh support bonded to a die-cast aluminum frame. Three (3) stacks of detectors have the detector foil and support mesh bonded to the out side of the die-cast frame, those with the brass support mesh clearly visible, and five (5) have the detector foil and support mesh on the inside. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The different materials and manufacturing processes, rolling, hammering, electroplating, etc., are responsible for the different colors and textures seen in the eight (8) pieshaped frames. The polished aluminum stop plate is visible between the two (2) sets of four detector stacks. Discolorations are visible on the die-cast frames with the detector foil and support mesh adhesive joint under the frame. A dark discoloration on the top pie-shaped frame and lighter discolorations on the other frames. Non-magnetic stainless steel fasteners are used for attaching the frame stacks to the mounting plate and the mounting plate to the tray structure. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-006.jpeg Classification==Flight Photo, LaRC #==L90-10454 Photo, JSC #==S32-82-006 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. The Multiple Foil Microabrasion Package (MAP) Experiment (AO023) experiment is located in the left one third (1/3rd) section, the Balloon Materials Degradation Experiment (S1006) occupies the center one third (1/3rd) section, the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section and the Ion Beam Textured and Coated Surfaces Experiment (S1003) is shown in the upper right section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block is white, paint on the left-center clamp block is lightly discolored and paint on the upper-right clamp block is heavily discolored. The (MAP) experiment, located in the left one third (1/3rd) tray section, consist of thin film detectors bonded to brass mesh supports and the mesh support bonded to a die-cast aluminum frame. Three (3) stacks of detectors have the detector foil and support mesh bonded to the out side of the die-cast frame, those with the brass support mesh clearly visible, and five (5) have the detector foil and support mesh on the inside. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The MAP experiment survived the mission with no apparent damage. The die-cast aluminum frame, the brass support mesh, the detector foils and the bond joints appear to be intact. Discolorations on the die-cast frames with the detector and support material adhesive joint beneath the frame appear darker than in the prelaunch photograph. The discolorations appear to be along the bond line between the support mesh and die-cast frame where the adhesive may not have been completely cleaned from the surface during post assembly cleaning. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2065.07.jpeg Classification==Postflight Photo, LaRC #==L91-15678 Photo, JSC #==None Photo, KSC #==KSC-390C-2065.07 Photo, PI #==No value in DB Photo, Date Taken==03/19/1990 Photo, Description== The postflight photograph was taken in the KSC SAEF II facility after the experiment was removed from the LDEF. The MAP experiment die-cast aluminum frames, fasteners, thermal isolation plate and polished aluminum stop plate seem to be moderately coated with the brown stain. The stain seems to be more concentrated in vicinities near adhesive bond joints. The detector bond joints and foil materials appear to be intact and have maintained thier integrity in all four (4) stacks. The polished aluminum stop plate has the brown stains on surfaces between the detector stacks. The brown stain and also a dark smudge is visible on the thermal isolator plate. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-284.jpeg Classification==Postflight Photo, LaRC #==L92-21191 Photo, JSC #==S32-S-284 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center and provides a view of the H11 integrated tray. When comparing this photograph with the prelaunch photograph, the most noticeable change is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The MAP experiment die-cast aluminum frames, fasteners, thermal isolation plate and polished aluminum stop plate seem to be moderately coated with the brown stain. The stain seems to be more concentrated in vicinities near adhesive bond joints. The detector bond joints and foil materials appear to be in-tact and have maintained their integrity in all four (4) stacks. A light brown stain and a dark smudge mark near the center are visible on the thermal isolator plate. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-8.04.jpeg Classification==Prelaunch Photo, LaRC #==L84-06997 Photo, JSC #==None Photo, KSC #==KSC-384C-8.04 Photo, PI #==No value in DB Photo, Date Taken==01/10/1984 Photo, Description== The prelaunch photograph shows the location of two (2) LDEF experiments integrated into a three (3) inch deep LDEF end corner tray. The Multiple Foil Microabrasion Package (MAP) Experiment, located in the right hand section of the tray, consist of thin film detectors bonded to brass mesh supports and the support mesh bonded to die-cast aluminum frame. The die-cast aluminum frames, stacked two (2) high, are placed over a polished aluminum stop plate and the combined assembly is bolted to an aluminum mounting plate. The different materials and manufacturing processes, rolling, hammering, electro-plating, etc., are responsible for the different colors and textures seen in the four (4) triangular shaped frames.The polished aluminum stop plate is visible between the four (4) detector stacks. Nonmagnetic stainless steel fasteners are used for attaching the frame stacks to the mounting plate and the mounting plate to the tray structure. A vertical anodized aluminum plate, seen between the AO023 (MAP) and AO201 (IDE) experiments, is used to provide thermal isolation of the two (2) experiments. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-060.jpeg Classification==Flight Photo, LaRC #==L90-10336 Photo, JSC #==S32-75-060 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the H11 integrated tray. When comparing this photograph with the prelaunch photograph, the most noticeable change is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The MAP experiment die-cast aluminum frames, fasteners, thermal isolation plate and polished aluminum stop plate seem to be moderately coated with the brown stain. The stain seems to be more concentrated in vicinities near adhesive bond joints. The detector bond joints and foil materials appear to be intact and have maintained thier integrity in all four (4) stacks. The lighter color of the areas between the detector stacks is due to reflections on the polished aluminum stop plates. The brown stain and also a dark smudge is visible on the thermal isolator plate. Photo, Experiment(s) shown==AO023 : Multiple-Foil Microabrasion Package Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1558.02.jpeg Classification==Postflight Photo, LaRC #==L91-09090 Photo, JSC #==None Photo, KSC #==KSC-390C-1558.02 Photo, PI #==No value in DB Photo, Date Taken==03/05/1990 Photo, Description== The Atomic Oxygen Stimulated Outgassing experiment, seen in the top center tray location, shows the brown stain on the cover plate surface. Reflections from the photographic light sources can be seen on surfaces of specimens located in the cavities behind the cover plate. Photo, Experiment(s) shown==AO034 : Atomic-Oxygen-Stimulated Outgassing Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-065.jpeg Classification==Flight Photo, LaRC #==L90-10416 Photo, JSC #==S32-77-065 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C03 integrated tray. When comparing this photograph with the prelaunch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. Photo, Experiment(s) shown==AO034 : Atomic-Oxygen-Stimulated Outgassing Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-15.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07015 Photo, JSC #==None Photo, KSC #==KSC-384C-15.01 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Atomic Oxygen Stimulated Outgassing experiment is located in the top center section of the tray. The aluminum cover plate has twenty-five (25) openings of two (2) sizes that allows exposure of ten (10) coating materials to the space environment. Ten of the openings have closures, the four (4) corner openings are closed out with solid chromic anodized aluminum (6061-T6) disk and six (6) of the nine smaller openings have quartz windows. The reflection of a light can be seen on one of the test specimen in the vertical row on the right. Photo, Experiment(s) shown==AO034 : Atomic-Oxygen-Stimulated Outgassing Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-100.jpeg Classification==Flight Photo, LaRC #==L90-10451 Photo, JSC #==S32-78-100 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C09 integrated tray. When comparing this photograph with the prelaunch photograph, very little difference can be seen. A brown stain is visible around some of the fasteners and on mounting plates. The stain has been attributed to outgassing and contamination from the LDEF and experiment related materials being flown. When compared to the prelaunch photograph, the C09 integrated tray seems to be in excellent condition. The Atomic Oxygen Stimulated Outgassing experiment seems to have changed little over the sixty nine (69) month LDEF mission. The experiment seems to be intact. The grayish appearance of the experiment coverplate is thought to be the results of lighting direction and intensity. The anodized aluminum disks, located in the openings at the four corners, appear to be brighter than in the pre-launch photograph. This is seems to be due to a reflection of the white cargo bay liner in the disks. Photo, Experiment(s) shown==AO034 : Atomic-Oxygen-Stimulated Outgassing Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1030.09.jpeg Classification==Postflight Photo, LaRC #==L90-13407 Photo, JSC #==None Photo, KSC #==KSC-390C-1030.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken prior to the experiment tray being removed from the LDEF. The tray corner clamp blocks are un-anodized aluminum and that alone accounts for the major difference in color between the corner clamp blocks and the center clamp blocks. The Atomic Oxygen Stimulated Outgassing experiment, seen in the top center tray location, shows little change when compared with the pre-launch photographs if lighting direction and intensity are considered. Experiment details are clearly visible in the postflight photograph. For instance, the six (6) quartz windows that fill openings in the cover plate, those with a pale gold tint, can be located. Reflections of the photographic lights can be seen on surfaces of the specimen located in the cavities behind the cover plate. The aluminum disk, filling each of the corner openings, are also more visible. A close inspection of the photograph reveals a thin brown stain on the cover plate and fasteners. Photo, Experiment(s) shown==AO034 : Atomic-Oxygen-Stimulated Outgassing Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-14.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07005 Photo, JSC #==None Photo, KSC #==KSC-384C-14.03 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Atomic Oxygen Stimulated Outgassing experiment is located in the top center section of the tray. The aluminum cover plate has twenty five (25) openings of two (2) sizes that allows exposure of ten (10) coating materials to the space environment. Ten of the openings have closures, the four (4) corner openings are closed out with solid chromic anodized aluminum (6061-T6) disk and six (6) of the nine smaller openings have quartz windows. The reflection of a light can be seen on one of the test specimen in the vertical row on the right. Photo, Experiment(s) shown==AO034 : Atomic-Oxygen-Stimulated Outgassing Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1069.09.jpeg Classification==Postflight Photo, LaRC #==L90-13488 Photo, JSC #==None Photo, KSC #==KSC-390C-1069.09 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the KSC SAEF II facility prior to removing experiments from the LDEF. The brown stains are still very prominent but seem to be less vivid than in the flight photograph. This may be due to the different lighting intensity and direction. The openings in the base plate for the grid voltage cable connectors show clearly and are thought to be the source of the brown stains around the connector. The beryllium copper collector foils are clearly visible in this photograph as are the baffles near the top of the canister housing. However, the fine wire mesh grid cannot be seen. Due to an experiment system malfunction, the canister collector foils that are visible were exposed for the total mission. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: E12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-031.jpeg Classification==Flight Photo, LaRC #==L90-10431 Photo, JSC #==S32-78-031 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. During the mission, the tray surface was at an angle of approximately ninety-eight (98) degrees to the orbital velocity vector and therefore exposed to a lower atomic oxygen flux than if parallel with the velocity vector. A very light stain is present on the white paint dots on experiment tray clamps along the lower edge of the tray. The color of the white thermal control paint on the IGE has changed and now varies from white to differing shades of brown. The darker brown areas on the experiment baseplate, around the grid voltage cable connectors, appear to have come from contaminants flowing from inside the LDEF. The shadows from the tray sidewalls hide most of the dark stain in the upper right corner of the tray. A lighter stain coats the tray's upper side wall, the left side of the canister housing and the experiment baseplate. The insulation on the grid voltage cable that was transparent prior to launch is now a light tan color. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: E12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-538.12.jpeg Classification==Prelaunch Photo, LaRC #==L89-04424 Photo, JSC #==None Photo, KSC #==KSC-384C-538.12 Photo, PI #==No value in DB Photo, Date Taken==01/30/1984 Photo, Description== The prelaunch photograph provides a view of the Interstellar Gas Experiment (IGE) hardware and shows the orientation of two (2) experiment canister housings mounted in a twelve (12) inch deep peripheral tray. The experiment utilizes seven (7) canisters containing high-purity beryllium copper collecting foils, three (3) located in peripheral trays and four (4) located in trays on the space end of the LDEF, to meet experiment objectives. The active portion of the experiment consist of canister electronic timing devices and pyrotechnic cutters that control the exposure time of each collector foil. An electronic voltage multiplier system provides a bias voltage to the grid network located above the beryllium copper collecting foils.The batteries and the electronics are housed beneath the experiment baseplate facing the LDEF interior. The white painted surface area within the LDEF tray provides the optical properties required to maintain the experiment components within temperature limits. The two (2) rectangular openings in opposite corners of the experiment baseplate provide the mountings for the ground support equipment test connectors. A white grid voltage connector box, mounted on the side of each canister housing, provides the termination point for the cables running from the grid voltage box beneath the baseplate. The canister housing is a welded aluminum structure with aluminum mounting flanges. The experiment components are assembled using non-magnetic stainless steel fasteners. The aluminum housing cover, removed prior to flight, protects experiment components from damage and large particle contamination during ground handling. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: E12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-002.jpeg Classification==Flight Photo, LaRC #==L90-10453 Photo, JSC #==S32-82-002 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. The OMS pod and a small part of the aft bulkhead in the Orbiter's cargo bay can be seen along the left side of the photograph. The three (3) black rectangles on the OMS pod are locations where thermal protection tiles were lost during the Orbiters ascent to orbit. During the LDEF mission, the F06 experiment tray surface was at an angle of approximately eighty-two (82) degrees to the orbital velocity vector and therefore exposed to a higher atomic oxygen flux than if parallel with the velocity vector. The white paint dots and experiment tray clamps along the upper edge of the tray appear to be clean. However, a brown stain is present on the white paint dots and experiment tray clamps along the lower edge of the tray. The color of the white thermal control paint on the IGE has changed from white to differing shades of brown. The brown stain on the tray sidewalls and all experiment hardware appears to be a product of contamination and the space environment. A hand print, not visible in the prelaunch photograph, can be seen on the baseplate in the lower half of the experiment tray. The white dot near the lower corner of the end sidewall is a reflection of the GSE test connector located in the lower left corner of the baseplate. The two (2) white dots on the experiment baseplate, near the left end of the tray, appear to be imperfections in the photograph since they were not observed during post-flight inspection..The insulation on the grid voltage cable that was transparent prior to launch is now a light tan color. The lighting and camera angle provide a clear view of the baffles located interior and near the upper edges of the canister housing. The baffles seem to be relatively clean of the brown contamination. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: F06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.08.jpeg Classification==Postflight Photo, LaRC #==L90-13438 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.08 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the KSC SAEF II facility prior to removing experiments from the LDEF. The brown stains are still prominent and seem to be a little more intense than in the flight photograph. This may be due to the different lighting intensity and direction. The beryllium copper collector foil is clearly visible in this photograph as are the baffles near the top of the canister housing. However, the fine wire mesh grid cannot be seen. Due to an experiment system mal- function, the canister collector foil that is visible was exposed for the total mission. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: F06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-538.04.jpeg Classification==Prelaunch Photo, LaRC #==L89-04416 Photo, JSC #==None Photo, KSC #==KSC-384C-538.04 Photo, PI #==No value in DB Photo, Date Taken==01/30/1984 Photo, Description== The prelaunch photograph provides a view of the Interstellar Gas Experiment (IGE) hardware and shows a single experiment canister housing mounted in a twelve (12) inch deep peripheral tray. The experiment utilizes seven (7) canisters containing high-purity beryllium copper collecting foils, three (3) located in peripheral trays and four (4) located in trays on the space end of the LDEF, to meet experiment objectives. The active portion of the experiment consist of canister electronic timing devices and pyrotechnic cutters that control the exposure time of each collector foil. An electronic voltage multiplier system provides a bias voltage to the grid network located above the beryllium copper collecting foils.The batteries and the electronics are housed beneath the experiment baseplate facing the LDEF interior. The white painted surface area within the LDEF tray provides the optical properties required to maintain the experiment components within temperature limits. The rectangular opening in the upper right corner of the experiment baseplate provide the mounting for the ground support equipment test connector. The white grid voltage connector box, mounted on the side of the canister housing, provides the termination point for the cables running from the grid voltage box beneath the baseplate. The canister housing is a welded aluminum structure with aluminum mounting flanges. The experiment components are assembled using non-magnetic stainless steel fasteners. The aluminum housing cover, removed prior to flight, protects experiment components from damage and large particle contamination during ground handling. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: F06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-063.jpeg Classification==Flight Photo, LaRC #==L90-10369 Photo, JSC #==S32-75-063 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. A very light contamination stain is present on the experiment tray flanges and on the most of the visible LDEF structure. The exception being a much darker stain on the structure adjacent to thermal covers that provide venting for the LDEF interior. The paint dot, originally white, adjacent to the thermal cover vent area is heavily coated with the brown contamination stain while the paint dot adjacent to the center end cover plate has a very light coating. The color of the white thermal control paint on the IGE has changed and now varies from offwhite to a dark brown. The darker brown areas on the experiment baseplate, around the grid voltage cable connectors, appear to have come from contaminants flowing from inside the LDEF. A dark stain area can be seen on the tray's lower sidewall but a shadow hides most of the dark stain in the upper left corner of the tray. A lighter stain coats portions of the experiment baseplate and the outside of the canister housing. A beryllium copper collector foil is clearly visible in the lower left canister housing as are the baffles and reflected light from the fine wire mesh grid near the top of the canister housing. Due to an experiment system malfunction, the canister collector foils that are visible were exposed for the total mission. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H06 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-290.jpeg Classification==Postflight Photo, LaRC #==L92-21197 Photo, JSC #==S32-S-290 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. A very light contamination stain is present on the experiment tray flanges and on the most of the visible LDEF structure. The exception being a much darker stain on the structure adjacent to thermal covers that provide venting for the LDEF interior. The paint dot adjacent to the thermal cover vent area is heavily coated with the brown contamination stain while the paint dot adjacent to the center end cover plate has a very light coating. The color of the white thermal control paint on the IGE has changed and now varies from offwhite to a dark brown. The darker brown areas on the experiment baseplate, around the grid voltage cable connectors, appear to have come from contaminants flowing from inside the LDEF. A dark stain area can be seen on the tray's lower sidewall and in the upper left corner of the tray. A lighter stain coats portions of the experiment baseplate and the outside of the canister housing. A beryllium copper collector foil is clearly visible within the canister housings as are the baffles and reflected light from the fine wire mesh grid near the top of the canister housing. Due to an experi- ment system malfunction, the canister collector foils that are visible were exposed for the total mission. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H06 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-538.08.jpeg Classification==Prelaunch Photo, LaRC #==L89-04420 Photo, JSC #==None Photo, KSC #==KSC-384C-538.08 Photo, PI #==No value in DB Photo, Date Taken==01/30/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Interstellar Gas Experiment on the LDEF. The prelaunch photograph provides a view of the Interstellar Gas Experiment (IGE) hardware and shows the orientation of two (2) experiment canister housings mounted in a twelve (12) inch deep end tray. The experiment utilizes seven (7) canisters containing high-purity beryllium copper collecting foils, three (3) located in peripheral trays and four (4) located in trays on the space end of the LDEF, to meet experiment objectives. The active portion of the experiment consist of canister electronic timing devices and pyrotechnic cutters that control the exposure time of each collector foil. An electronic voltage multiplier system provides a bias voltage to a wire mesh grid located above the beryllium copper collecting foils.The batteries and the electronics are housed beneath the experiment baseplate facing the LDEF interior. The white painted surface area within the LDEF tray provides the optical properties required to maintain the experiment components within temperature limits. The two (2) rectangular openings in opposite corners of the experiment baseplate provide the mountings for the grid voltage box and for the ground support equipment test connectors. A white grid voltage box, mounted on the side of each canister housing, provides the termination point for the cables running from the power supply located beneath the baseplate. The canister housing is a welded aluminum structure with aluminum mounting flanges. The experiment components are assembled using non-magnetic stainless steel fasteners. The aluminum housing cover, removed prior to flight, protects experiment components from damage and large particle contamination during ground handling. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H06 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1641.03.jpeg Classification==Postflight Photo, LaRC #==L91-11828 Photo, JSC #==None Photo, KSC #==KSC-390C-1641.03 Photo, PI #==No value in DB Photo, Date Taken==03/06/1990 Photo, Description== The postflight photograph was taken in the KSC SAEF II facility after the experiment was removed from the LDEF. The brown stains are still very prominent and appear to be the same as in the flight photograph. The openings in the base plate for the grid voltage cable connector mounts are thought to be the source of the darker brown stains around the connectors. The covers have been installed on the canister housings to protect the space exposed hardware. The contamination stain provides an out- line of tray clampblock locations on the experiment tray flanges. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H06 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-538.06.jpeg Classification==Prelaunch Photo, LaRC #==L89-04418 Photo, JSC #==None Photo, KSC #==KSC-384C-538.06 Photo, PI #==No value in DB Photo, Date Taken==01/30/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Interstellar Gas Experiment on the LDEF. The prelaunch photograph provides a view of the Interstellar Gas Experiment (IGE) hardware and shows the orientation of two (2) experiment canister housings mounted in a twelve (12) inch deep end tray. The experiment utilizes seven (7) canisters containing high-purity beryllium copper collecting foils, three (3) located in peripheral trays and four (4) located in trays on the space end of the LDEF, to meet experiment objectives. The active portion of the experiment consist of canister electronic timing devices and pyrotechnic cutters that control the exposure time of each collector foil. An electronic voltage multiplier system provides a bias voltage to the grid network located above the beryllium copper collecting foils.The batteries and the electronics are housed beneath the experiment baseplate facing the LDEF interior. The white painted surface area within the LDEF tray provides the optical properties required to maintain the experiment components within temperature limits. The two (2) rectangular openings in opposite corners of the experiment baseplate provide the mountings for the grid voltage box and for the ground support equipment test connectors. A white grid voltage box, mounted on the side of each canister housing, provides the termination point for the cables running from the power supply located beneath the baseplate. The canister housing is a welded aluminum structure with aluminum mounting flanges. The experiment components are assembled using non-magnetic stainless steel fasteners. The aluminum housing cover, removed prior to flight, protects experiment components from damage and large particle contamination during ground handling. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H09 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1636.10.jpeg Classification==Postflight Photo, LaRC #==L91-11881 Photo, JSC #==None Photo, KSC #==KSC-390C-1636.10 Photo, PI #==No value in DB Photo, Date Taken==03/06/1990 Photo, Description== The postflight photograph was taken in the KSC SAEF II facility after the experiment was removed from the LDEF. The brown stains are still very prominent and appear to be the same as in the flight photograph. The openings in the base plate for the grid voltage cable connector mounts are thought to be the source of the darker brown stains around the connectors. The covers have been installed on the canister housings to protect the space exposed hardware. The contamination stain provides an out- line of tray clamp block locations on the experiment tray flanges. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H09 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-061.jpeg Classification==Flight Photo, LaRC #==L90-10367 Photo, JSC #==S32-75-061 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Interstellar Gas Experiment was taken from the Orbiter aft flight deck during the LDEF retrieval. A very light contamination stain is present on the experiment tray flanges and on the most of the visible LDEF structure. The exception being a darker stain on the structure adjacent to thermal covers that provide venting for the LDEF interior. Both paint dots appear to be heavily coated with the brown contamination stain. The color of the white thermal control paint on the IGE has changed and now varies from off-white to a dark brown. The darker brown areas on the experiment baseplate, around the grid voltage cable connectors, appear to have come from contaminants flowing from inside the LDEF. A dark stain area can be seen on the lower half of the tray's right sidewall but a shadow hides most of the dark stain in the upper left corner of the tray. A lighter stain coats portions of the experiment baseplate and the outside of the canister housing. A beryllium copper collector foil is clearly visible in the lower left canister housing as are the baffles and reflected light from the fine wire mesh grid near the top of the canister housing. Due to an experi- ment system malfunction, the canister collector foils that are visible were exposed for the total mission. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H09 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-255.06.jpeg Classification==Prelaunch Photo, LaRC #==L89-04387 Photo, JSC #==None Photo, KSC #==KSC-384C-255.06 Photo, PI #==No value in DB Photo, Date Taken==01/18/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Holographic Data Storage Crystals for LDEF Experiment (AO044) consist of four crystals of lithium niobate, three crystals contain recorded holograms and one crystal is an unrecorded control sample. The Holographic Data Storage experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, ThePyroelectric Infrared Detectors Experiment with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==AO044 : Holographic Data Storage Crystals for LDEF Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2114.03.jpeg Classification==Postflight Photo, LaRC #==L91-10508 Photo, JSC #==None Photo, KSC #==KSC-390C-2114.03 Photo, PI #==No value in DB Photo, Date Taken==03/20/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the integrated experiment tray was removed from the LDEF and the sun screens removed. The Holographic Data Storage Crystals for LDEF Experiment (AO044) consist of four crystals of lithium niobate, three crystals contain recorded holograms and one crystal is an unrecorded control sample. The Holographic Data Storage experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, ThePyroelectric Infrared Detectors Experiment with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. A brown discoloration is clearly visible on the tray flanges. The location of experiment test specimen and their mountings are shown in this photograph. The fiberglass-epoxy mounting strip colors vary from the typical greenish-gray to a slate gray in proportion to their exposure. The red material on top of the aluminum support structure is a silicone rubber gasket between the sun screen and the structure. The gasket material missing adhered to the sun screens. Photo, Experiment(s) shown==AO044 : Holographic Data Storage Crystals for LDEF Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-050.jpeg Classification==Flight Photo, LaRC #==L90-10413 Photo, JSC #==S32-77-050 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to berthing the LDEF in the Orbiter cargo bay. The Holographic Data Storage Crystals for LDEF Experiment (AO044) consist of four crystals of lithium niobate, three crystals contain recorded holograms and one crystal is an unrecorded control sample. The Holographic Data Storage experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, ThePyroelectric Infrared Detectors Experiment with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. The excess blue color in the photograph makes a detailed assessment of color changes difficult. The paint dots on the tray clamp blocks, initially white, appear to have darkened and tray flanges appear discolored. The experiment sun screens and base plate also appear discolored. The exposed experiment test specimen and their fiberglass-epoxy mountings appear to have survived the mission with minimum degradation. Photo, Experiment(s) shown==AO044 : Holographic Data Storage Crystals for LDEF Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-027.jpeg Classification==Flight Photo, LaRC #==L90-10407 Photo, JSC #==S32-77-027 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Space Plasma High Voltage Drainage Experiment (SP HVD) flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the centers of the trays lower and left flanges and at the right end of the upper flange have changed from their original white color to a dark brown. The SP HVD experiment consist of two identical sets of experiment hardware mounted in three (3) inch deep LDEF experiment trays, one tray is located in the LDEF position B04 adjacent to the LDEF trailing edge and the other is located at LDEF position D10 adjacent to the LDEF leading edge. Each set of SP HVD experiment hardware, self-contained within the experiment tray, consist of six (6) fiberglass reinforced epoxy modules carrying charged dielectric samples on top and the power supplies and electronics below. Four (4) dielectric samples, Kapton with Vapor Deposited Aluminum on one side (VDA-Kapton), are bonded to each of the fiberglass modules with a silver filled conductive epoxy. The spaces between the dielectric sample covered modules and between the modules and the tray flanges are covered by strips of VDA-Kapton attached with acrylic transfer adhesive and Kapton tape. Each experiment tray also contain two solar cell modules. Power for the experiment is provided by LiSO2 batteries supplied by the LDEF Project. The experiment was assembled using non-magnetic stainless steel fasteners. The SP HVD experiment appears to be intact with no apparent physical damage from exposure to the space environment. The lighting is such that changes in material colors is difficult to detect, however, the white paint in the vicinity of the solar cell modules appears to have darkened. Photo, Experiment(s) shown==AO054 : Space Plasma High-Voltage Drainage Experiment Associated Tray(s)==Tray Location: B04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-730.08.jpeg Classification==Postflight Photo, LaRC #==L92-17647 Photo, JSC #==None Photo, KSC #==KSC-390C-730.08 Photo, PI #==No value in DB Photo, Date Taken==02/01/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to removal of the experiment from the LDEF. The experiment trays upper, lower and right flanges have light tan discolorations. The paint dots on clamp blocks located at the centers of the trays upper and right flanges and at the left end of the lower flange have changed from their original white color to a light tan. The SP HVD experiment consist of two identical sets of experiment hardware mounted in three (3) inch deep LDEF experiment trays, one tray is located in the LDEF position B04 adjacent to the LDEF trailing edge and the other is located at LDEF position D10 adjacent to the LDEF leading edge. Each set of SP HVD experiment hardware, self-contained within the experiment tray, consist of six (6) fiberglass reinforced epoxy modules carrying charged dielectric samples on top and the power supplies and electronics below. Four (4) dielectric samples, Kapton with Vapor Deposited Aluminum on one side (VDA-Kapton), are bonded to each of the fiberglas modules with a silver filled conductive epoxy. The spaces between the dielectric sample covered modules and between the modules and the tray flanges are covered by strips of VDA-Kapton attached with acrylic transfer adhesive and Kapton tape. Each experiment tray also contain two solar cell modules. Power for the experiment is provided by LiSO2 batteries supplied by the LDEF Project. The experiment was assembled using non-magnetic stainless steel fasteners. The SP HVD experiment appears to be intact with no apparent physical damage from exposure to the space environment. The white paint around the outer edges of the solar cell modules appears to have changed to a light tan. Photo, Experiment(s) shown==AO054 : Space Plasma High-Voltage Drainage Experiment Associated Tray(s)==Tray Location: B04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==O & C Low Bay Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-221.04.jpeg Classification==Prelaunch Photo, LaRC #==L84-07086 Photo, JSC #==None Photo, KSC #==KSC-384C-221.04 Photo, PI #==No value in DB Photo, Date Taken==01/13/1984 Photo, Description== The prelaunch photograph of The Space Plasma High Voltage Drainage Experiment (SP HVD) was taken in SAEF II at KSC prior to installation on the LDEF. The SP HVD experiment consist of two identical sets of experiment hardware mounted in three (3) inch deep LDEF experiment trays, one tray is located in the LDEF position B04 adjacent to the LDEF trailing edge and the other is located at LDEF position D10 adjacent to the LDEF leading edge. Each set of SP HVD experiment hardware, self-contained within the experiment tray, consist of six (6) fiberglass reinforced epoxy modules carrying charged dielectric samples on top and the power supplies and electronics below. Four (4) dielectric samples, Kapton with Vapor Deposited Aluminum on one side (VDA-Kapton), are bonded to each of the fiberglass modules with a silver filled conductive epoxy adhesive. The spaces between the dielectric sample covered modules and between the modules and the tray flanges are covered by strips of VDA-Kapton attached with acrylic transfer adhesive and Kapton tape. Each experiment tray also contain two solar cell modules. Power for the experiment is provided by LiSO2 batteries supplied by the LDEF Project. The experiment was assembled using non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==AO054 : Space Plasma High-Voltage Drainage Experiment Associated Tray(s)==Tray Location: B04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-062.jpeg Classification==Flight Photo, LaRC #==L90-10439 Photo, JSC #==S32-78-062 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Space Plasma High Voltage Drainage Experiment (SP HVD) flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the center of the trays right flange and at the right and left ends of the left flange have changed very little from their original white color. The SP HVD experiment consist of two identical sets of experiment hardware mounted in three (3) inch deep LDEF experiment trays, one tray is located in the LDEF position B04 adjacent to the LDEF trailing edge and the other is located at LDEF position D10 adjacent to the LDEF leading edge. Each set of SP HVD experiment hardware, self-contained within the experiment tray, consist of six (6) fiberglass reinforced epoxy modules carrying charged dielectric samples on top and the power supplies and electronics below. Four (4) dielectric samples, Kapton with Vapor Deposited Aluminum on one side (VDA-Kapton), are bonded to each of the fiberglass modules with a silver filled conductive epoxy. The spaces between the dielectric sample covered modules and between the modules and the tray flanges are covered by strips of VDA-Kapton attached with acrylic transfer adhesive and Kapton tape. Each experiment tray also contain two solar cell modules. Power for the experiment is provided by LiSO2 batteries supplied by the LDEF Project. The experiment was assembled using non-magnetic stainless steel fasteners. The SP HVD experiment in this tray was severely degraded by impingement of atomic oxygen during the long exposure to the space environment. Most of the Kapton polyimide material making up the dielectric samples was completely eroded leaving only the 2000-3000 angstrom vapor deposited aluminum layer bonded to the module. The edges of the dielectric surface that survived were taped over by Kapton tape with a silicone adhesive. The Kapton backing eroded leaving the silicone adhesive that protected the Kapton surface beneath. The VDA-Kapton strips used to cover spaces between the modules have degraded substantially and only fragments of the vapor deposited aluminum layer remain attached along the edges. The white paint around the outer edges of the solar cell modules appears to have changed little. Impact craters are visible as black or white specks in many locations on the degraded dielectric surfaces. One of the most noticeable is in the dielectric surface in the upper right corner. Photo, Experiment(s) shown==AO054 : Space Plasma High-Voltage Drainage Experiment Associated Tray(s)==Tray Location: D10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.07.jpeg Classification==Prelaunch Photo, LaRC #==L84-07065 Photo, JSC #==None Photo, KSC #==KSC-384C-193.07 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph of The Space Plasma High Voltage Drainage Experiment (SP HVD) was taken in SAEF II at KSC prior to installation on the LDEF. The SP HVD experiment consist of two identical sets of experiment hardware mounted in three (3) inch deep LDEF experiment trays, one tray is located in the LDEF position B04 adjacent to the LDEF trailing edge and the other is located at LDEF position D10 adjacent to the LDEF leading edge. Each set of SP HVD experiment hardware, self-contained within the experiment tray, consist of six (6) fiberglass reinforced epoxy modules carrying charged dielectric samples on top and the power supplies and electronics below. Four (4) dielectric samples, Kapton with Vapor Deposited Aluminum on one side (VDA-Kapton), are bonded to each of the fiberglass modules with a silver filled conductive epoxy adhesive. The spaces between the dielectric sample covered modules and between the modules and the tray flanges are covered by strips of VDA-Kapton attached with acrylic transfer adhesive and Kapton tape. Each experiment tray also contain two solar cell modules. Power for the experiment is provided by LiSO2 batteries supplied by the LDEF Project. The experiment was assembled using non-magnetic stainless steel fasteners. Reflections of the surrounding area can be seen in the VDA-Kapton dielectric samples. Photo, Experiment(s) shown==AO054 : Space Plasma High-Voltage Drainage Experiment Associated Tray(s)==Tray Location: D10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1029.07.jpeg Classification==Postflight Photo, LaRC #==L90-13393 Photo, JSC #==None Photo, KSC #==KSC-390C-1029.07 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to removal of the experiment from the LDEF. The experiment trays upper, lower and right flanges have light tan discolorations. The paint dots on clamp blocks located at the centers of the trays upper and right flanges and at the left end of the lower flange have changed from their original white color to a light tan. The SP HVD experiment consist of two identical sets of experiment hardware mounted in three (3) inch deep LDEF experiment trays, one tray is located in the LDEF position B04 adjacent to the LDEF trailing edge and the other is located at LDEF position D10 adjacent to the LDEF leading edge. Each set of SP HVD experiment hardware, self-contained within the experiment tray, consist of six (6) fiberglass reinforced epoxy modules carrying charged dielectric samples on top and the power supplies and electronics below. Four (4) dielectric samples, Kapton with Vapor Deposited Aluminum on one side (VDA-Kapton), are bonded to each of the fiberglass modules with a silver filled conductive epoxy. The spaces between the dielectric sample covered modules and between the modules and the tray flanges are covered by strips of VDA-Kapton attached with acrylic transfer adhesive and Kapton tape. Each experiment tray also contain two solar cell modules. Power for the experiment is provided by LiSO2 batteries supplied by the LDEF Project. The experiment was assembled using non-magnetic stainless steel fasteners. The SP HVD experiment in this tray was severely degraded by impingement of atomic oxygen during the long exposure to the space environment. Most of the Kapton polyimide material making up the dielectric samples was completely eroded leaving only the 2000-3000 angstrom Vapor Deposited Aluminum (VDA) layer bonded to the module. The edges of the dielectric surface that survived were taped over by Kapton tape with a silicone adhesive. The Kapton backing eroded leaving the silicone adhesive that protected the Kapton surface beneath. The VDA-Kapton strips used to cover spaces between the modules have degraded substantially and only fragments of the extremely fragile VDA layer remain. The larger fragments of the VDA layer observed in the flight photograph were disturbed during post retrieval operations and became many small aluminum particles. The white paint around the outer edges of the solar cell modules appears to have changed little. Impact craters are visible as black or white specks in many locations on the degraded dielectric surfaces. One of the most noticeable is in the dielectric surface in the upper right corner. Photo, Experiment(s) shown==AO054 : Space Plasma High-Voltage Drainage Experiment Associated Tray(s)==Tray Location: D10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-294.07.jpeg Classification==Prelaunch Photo, LaRC #==L84-07116 Photo, JSC #==None Photo, KSC #==KSC-384C-294.07 Photo, PI #==No value in DB Photo, Date Taken==01/01/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF and shows the locations of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment (AO056) is comprised of forty-six (46) individual specimen divided between two (2) experiment modules, one module in an integrated experiment tray at tray location B08, this location, and a second module located in an integrated experiment tray on the Earth end of the LDEF at tray location G12. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment is located in the upper right corner, one sixth (1/6th), of the integrated tray. The infrared filters and coating samples are contained in the circular holders located in the left half of the module and the materials technology samples are located in the right half. An anodized aluminum substructure is used to raise the sample mounting plate to a level that minimizes shadowing of experiment samples by the experiment tray sidewall. The aluminum mounting plate and the multilayer filter and coating aluminum sample holders were anodized prior to the experiment assembly and non-mag- netic stainless steel fasteners were used to assemble the experiment hardware. Photo, Experiment(s) shown==AO056 : Exposure to Space Radiation of High-Performance Infrared Multilayer Filters and Materials Technology Experiments Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.11.jpeg Classification==Postflight Photo, LaRC #==L90-13421 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.11 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to removal of the experiment tray from the LDEF and shows the location of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The experiment tray flanges appear to have a light tan discoloration as do the originally-white paint dots on the tray clamp blocks. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment is located in the upper left corner, one sixth (1/6th), of the integrated tray. The infrared filters and coating samples are contained in circular holders located in the lower half of the module and the materials technology samples are located in the upper half. The experiment appears to be intact but has sustained some physical damage. An impact crater and two cracks extending outward from the crater are visible in the experiment sample mounted in the second circular holder from the right in the top row of filter and coating samples. The experiment sample located in the second circular holder from the left in the top row appears to be missing. The apparent blue, green, silver and white color of coatings and filter samples observed in the flight photographs are not seen in this photograph. A brown discoloration is present on the surface of the unpainted aluminum mounting plate, darker near fasteners around the mounting plate edges and near the filter and coating holders. The brown discoloration is also observed on surfaces of the materials technology experiment samples mounted in the upper half of the experiment module. Photo, Experiment(s) shown==AO056 : Exposure to Space Radiation of High-Performance Infrared Multilayer Filters and Materials Technology Experiments Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-026.jpeg Classification==Flight Photo, LaRC #==L90-10380 Photo, JSC #==S32-76-026 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay and shows the locations of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The experiment tray flanges appear to have a light tan discoloration as do the originally white paint dots on the tray clamp blocks. Irregular shaped darker discolorations are visible on the inside of the left flange. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment is located in the upper left corner, one sixth (1/6th), of the integrated tray. The infrared filters and coating samples are contained in circular holders located in the lower half of the module and the materials technology samples are located in the upper half. The experiment appears to be intact but has sustained some physical damage. An impact crater and two cracks eminating from the crater are visible in the experiment sample mounted in the second circular holder from the right in the top row of filter and coating samples. The experiment sample located in the second circular holder from the left in the top row appears to be missing. The apparent blue, green, silver and white colors of coatings and filter samples in the circular holders are from reflections of the surrounding area and not a color change of the experiment sample due to exposure to the space environment. A brown discoloration is present on the surface of the unpainted aluminum mounting plate, darker near fasteners around the mounting plate edges and near the filter and coating hold- ers. The brown discoloration is also observed on surfaces of the materials technology experiment samples mounted in the upper half of the experiment module. Photo, Experiment(s) shown==AO056 : Exposure to Space Radiation of High-Performance Infrared Multilayer Filters and Materials Technology Experiments Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-054.jpeg Classification==Flight Photo, LaRC #==L90-10388 Photo, JSC #==S32-76-054 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. Shadows of the remote manipulator system cover a significant area of the picture. A light tan discoloration covers the entire surface of the experiment sample mounting plate and sample holders. Darker irregular shaped areas of discoloration appear in locations adjacent to the stainless steel fasteners. In addition to discolorations, changes in coatings samples in the larger circular holders and in material samples located on the smaller mounting plate have occurred. Photo, Experiment(s) shown==AO056 : Exposure to Space Radiation of High-Performance Infrared Multilayer Filters and Materials Technology Experiments Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==16.75 in. W x 15.38 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07165 Photo, JSC #==None Photo, KSC #==KSC-384C-317.08 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment (AO056) is one of four experi ments located in a three (3) inch deep LDEF end center tray. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment (AO056) is comprised of forty six (46) individual specimen divided between two (2) experiment modules , one module containing twenty (20) specimen is located in an integrated experiment tray on the Earth end of the LDEF at tray location G12 and a second module containing twenty six (26) specimen is located in an integrated experiment tray on the LDEF periphery at tray location B08. The High-Performance Infrared Multilayer Filters and Materials Technology Experiment is located in the upper right quadrant of the integrated tray. The infrared filters and coating samples are contained in the circular holders located in the lower half of the quadrant and the materials technology samples are located in the upper half. An anodized aluminum substructure is used to raise the sample mounting plate to a level that minimizes shadowing of experiment samples by the experiment tray sidewall. The aluminum mounting plate and the multilayer filter and coating aluminum sample holders were anodized prior to the experiment assembly and non-magnetic stainless steel fasteners were used to assemble the experiment hardware. Photo, Experiment(s) shown==AO056 : Exposure to Space Radiation of High-Performance Infrared Multilayer Filters and Materials Technology Experiments Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==16.75 in. W x 15.38 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1997.02.jpeg Classification==Postflight Photo, LaRC #==L91-11718 Photo, JSC #==None Photo, KSC #==KSC-390C-1997.02 Photo, PI #==No value in DB Photo, Date Taken==03/15/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment tray was removed from the LDEF. The experiment tray flanges have become discolored with a light tan stain except where the tray clamp blocks were located. The lower tray flange appears to be stained more heavily than the upper flange. Light tan irregular shaped areas of discoloration appear in locations adjacent to the stainless steel fasteners in areas along all four edges of the mounting plate. In addition to discolorations, deteri oration of coating samples located in the larger circular holders and changes in material samples located on the smaller rectangular mounting plate have occurred. Photo, Experiment(s) shown==AO056 : Exposure to Space Radiation of High-Performance Infrared Multilayer Filters and Materials Technology Experiments Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==16.75 in. W x 15.38 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-087.jpeg Classification==Flight Photo, LaRC #==L90-10448 Photo, JSC #==S32-78-087 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Cascade Variable Conductance Heat Pipe Experiment (CVCHPE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays right flange and lower flange appear to be slightly discolored. The LDEF structure, top intercostal, has a dark brown discoloration adjacent to the black thermal panel. Aluminum particles from the degraded CVCHPE thermal blanket are also visible in this area. The Cascade Variable Conductance Heat Pipe Experiment (CVCHPE) occupies a 6 inch deep LDEF peripheral experiment tray and consist of two series connected variable conductance heatpipes, a black chrome solar collector panel and a silvered Teflon radiator panel, a power source to support six thermistor-type temperature monitoring sensors and actuations of two valves. Fiberglass standoffs and internal insulation blankets thermally isolated the experiment from the experiment tray and the LDEF interior. The outside of the CVCHPE, except the collector and radiator panels, was covered with an aluminumized Kapton multilayer insulation (MLI) blanket with an outer layer of 0.076 mm thick Kapton. The two patches of thin film materials, part of an atomic oxygen experiment (see S1001) by NASA GSFC, were attached to the cover of the external thermal blanket with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The external CVCHPE materials have changed significantly. The Kapton on the thermal blanket aluminized Kapton cover appears to be completely eroded, except under Kel-F buttons used to secure the blanket, leaving only the very thin vapor deposited aluminum coating as a cover. Parts of the aluminum coating residue has moved to cover a portion of the black solar absorber panel and also areas of the trays upper and lower flanges. The shadow on the tray lower flange would indicate that the aluminum extends several inches out of the tray envelope. One of the two thin film atomic oxygen experiment patches is gone and the other does not appear to be securely attached. The layer of Kapton tape over the thin film strips appears to be eroded with only the adhesive remaining. The remaining atomic oxygen experiment materials have changed colors and most appear to be severely degraded. The silvered Teflon coating of the radiator panel appears diffuse with a light brown discoloration over most of the surface. The white, evenly spaced, discolorations along the vertical centerline and across the top of the panel appear to be above counter sunk flat head screws used to assemble the experiment. The black spots on the radiator panel appear to be impact craters where the impact penetrated the Teflon material and exposed the silver beneath to the atomic oxygen flux. Particles of the degraded thermal blanket material appear to be adhered to the surface of the radiator panel. Photo, Experiment(s) shown==AO076 : Cascade Variable-Conductance Heat Pipe Associated Tray(s)==Tray Location: F09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4418.02.jpeg Classification==Prelaunch Photo, LaRC #==L84-07310 Photo, JSC #==None Photo, KSC #==KSC-383C-4418.02 Photo, PI #==No value in DB Photo, Date Taken==12/08/1983 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Cascade Variable Conductance Heat Pipe Experiment (CVCHPE) on the LDEF. The Cascade Variable Conductance Heat Pipe Experiment (CVCHPE) occupies a 6 inch deep LDEF peripheral experiment tray and consist of two series connected variable conductance heatpipes, a black chrome solar collector panel and a silvered Teflon radiator panel, a power source to support six thermistor-type temperature monitoring sensors and actuations of two valves. Fiberglass standoffs and internal insulation blankets thermally isolated the experiment from the experiment tray and the LDEF interior. The outside of the CVCHPE, except the collector and radiator panels, was covered with an aluminumized Kapton multilayer insulation (MLI) blanket with an outer layer of 0.076 mm thick Kapton. The two patches of thin film materials, part of Experiment S1001 by NASA GSFC, were attached to the cover of the external thermal blanket with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==AO076 : Cascade Variable-Conductance Heat Pipe Associated Tray(s)==Tray Location: F09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L90-1826.jpeg Classification==Postflight Photo, LaRC #==L90-01826 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==03/12/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to removal of the experiment from the LDEF. The color of the white paint dots on the exper- iment tray clamp blocks appear to be unchanged. The LDEF structure, the intercostal on the right, has a dark brown discoloration adjacent to the black Earth end thermal panel. Aluminum pieces of the degraded CVCHPE thermal cover that were shown lodged in the vent area between the intercostal and the black thermal panel in the flight photograph are gone. The Cascade Variable Conductance Heat Pipe Experiment (CVCHPE) occupies a 6 inch deep LDEF peripheral experiment tray and consist of two series connected variable conductance heatpipes, a black chrome solar collector panel and a silvered Teflon radiator panel, a power source to support six thermistor-type temperature monitoring sensors and actuations of two valves. Fiberglass standoffs and internal insulation blankets thermally isolated the experiment from the experiment tray and the LDEF interior. The outside of the CVCHPE, except the collector and radiator panels, was covered with an aluminized Kapton multilayer insulation (MLI) blanket with an outer layer of 0.076 mm thick Kapton. The two patches of thin film materials, part of Experiment S1001 by NASA GSFC, were attached to the cover of the external thermal blanket with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The external surface of the CVCHPE has changed from that observed in the flight photograph. The thin vapor deposited aluminum coating, left after the Kapton eroded, is essentially gone with only fragments left near the edges of the thermal blanket. Pieces of a layer of Dacron mesh (bridle vail) material, used to separate the thermal cover from the thermal blanket and between thermal blanket sheets of aluminized Kapton, are visible along the edges of the blanket and near Kel-F buttons used to secure the blanket. A large fragment of the material is folded over the left side of the radiator panel. The large area of discoloration on the right side of the black solar absorber panel appears to be approximately the same shape as the aluminum coating that covered the area in the flight photograph. The orientation of the remaining thin film atomic oxygen experiment patch would indicate that the patch is attached to the Dacron mesh and that the attachment is very fragile. The layer of Kapton tape that covered the ends of the thin film strips appears to be eroded with only the adhesive remaining. The remaining strips of the atomic oxygen experiment materials have changed colors and most appear to be severely degraded. The silvered Teflon coating of the radiator panel appears diffuse with a light brown discoloration over most of the surface. The white, evenly spaced, discolorations along the horizontal centerline and along the edges of the panel appear to be above counter sunk flat head screws used to assemble the experiment. The black spots on the radiator panel appear to be impact craters that penetrated the Teflon material and exposed the silver beneath to the atomic oxygen flux. Particles of the degraded thermal blanket material that appeared to adhere to the surface of the radiator panel in the flight photograph are gone. Photo, Experiment(s) shown==AO076 : Cascade Variable-Conductance Heat Pipe Associated Tray(s)==Tray Location: F09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-065.jpeg Classification==Flight Photo, LaRC #==L90-10416 Photo, JSC #==S32-77-065 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C03 integrated tray. When comparing this photograph with the pre-launch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The Atomic Oxygen Interaction with Solid Surfaces experiment has significantly changed during the LDEF mission. The S13G-LO white paint has turned to a light tan color with darker areas near the coverplate edges and above the polished aluminum cover plate. The specimen material and thier substrate base seem to have survived the space environment. The blue tint seen on the polished aluminum cover plate and some of the specimen materials is attributed to reflection of the sky. Photo, Experiment(s) shown==AO114 : Interaction of Atomic Oxygen With Solid Surfaces at Orbital Altitudes Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1558.02.jpeg Classification==Postflight Photo, LaRC #==L91-09090 Photo, JSC #==None Photo, KSC #==KSC-390C-1558.02 Photo, PI #==No value in DB Photo, Date Taken==03/05/1990 Photo, Description== AO114 - The Interaction of Atomic Oxygen with Solid Surfaces post-flight photograph shows a significant change in the color of the white paint, S13G-LO. The light tan color is consistant with the contamination stain seen on other exposed surfaces on the trailing side of the LDEF. However, the darker stains seen around the top edge of the polished aluminum cover in the flight photographs are not visible in this photograph. The material specimen remain intact in thier mountings and seem to have survived exposure to the space environment very well. The polished aluminum cover plate has darkened and seems to have a duller finish than seen in the prelaunch photograph. This condition is attributed to a coating of the brown contamination stain. Photo, Experiment(s) shown==AO114 : Interaction of Atomic Oxygen With Solid Surfaces at Orbital Altitudes Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-15.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07015 Photo, JSC #==None Photo, KSC #==KSC-384C-15.01 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Interaction of Atomic Oxygen With Solid Surfaces experiment is shown in the lower center section of the tray. The surface viewed is a coverplate designed to mask one-half (1/2) of a specimen overcoated on an optically flat disk. The specimen materials include silver, germanium, lithium fluoride, niobium, nickel, aluminum, carbon, silicon, gold, platinum and a few engineering materials. Some materials for which the removal rate is high, such as carbon, are solid disk. The large coverplate accommodates forty eight (48) specimen and is coated with a white silicon paint, IITRI S13G-LO. The smaller coverplate is an aluminum plate with a highly polished surface and covers sixteen (16) specimen. The three (3) oblong slits to the right of the smaller coverplate are inlets to the three (3) reflectometers mounted on the backside of the mounting plate. Non-magnetic fasteners are used for all mechanical attachments. Photo, Experiment(s) shown==AO114 : Interaction of Atomic Oxygen With Solid Surfaces at Orbital Altitudes Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1030.09.jpeg Classification==Postflight Photo, LaRC #==L90-13407 Photo, JSC #==None Photo, KSC #==KSC-390C-1030.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken prior to the experiment tray being removed from the LDEF. The tray corner clamp blocks are un-anodized aluminum and that alone accounts for the major difference in color between the corner clamp blocks and the center clamp blocks. AO114 - The Interaction of Atomic Oxygen with Solid Surfaces post-flight photograph shows a little change in the color of the white paint, S13G-LO. A very faint tan tint can be seen but only around the outside edges of the cover plate and the outside ring of fasteners. The material specimen remain intact in their mountings and seem to have survived exposure to the space environ- ment very well. The polished aluminum cover plate has darkened and seems to have a duller finish than seen in the pre-launch photograph. This condition could be attributed to a very thin coating of the brown stain and or the different photographic conditions, lighting and surroundings. Photo, Experiment(s) shown==AO114 : Interaction of Atomic Oxygen With Solid Surfaces at Orbital Altitudes Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-14.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07005 Photo, JSC #==None Photo, KSC #==KSC-384C-14.03 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Interaction of Atomic Oxygen With Solid Surfaces experiment is shown in the lower center section of the tray. The surface viewed is a coverplate designed to mask one-half (1/2) of a specimen overcoated on an optically flat disk. The specimen materials include silver, germanium, lithium fluoride, niobium, nickel, aluminum, carbon, silicon, gold, platinum and a few engineering materials. Some materials for which the removal rate is high, such as carbon, are solid disk. The large coverplate accommodates forty eight (48) specimen and is coated with a white silicon paint, IITRI S13G-LO. The smaller coverplate is an aluminum plate with a highly polished surface and covers sixteen (16) specimen. The three (3) oblong slits to the right of the smaller coverplate are inlets to the three (3) reflectometers mounted on the backside of the mounting plate. Non-magnetic fasteners are used for all mechanical attachments. Photo, Experiment(s) shown==AO114 : Interaction of Atomic Oxygen With Solid Surfaces at Orbital Altitudes Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-100.jpeg Classification==Flight Photo, LaRC #==L90-10451 Photo, JSC #==S32-78-100 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C09 integrated tray. When comparing this photograph with the prelaunch photograph, very little difference can be seen. A brown stain is visible around some of the fasteners and on mounting plates. The stain has been attributed to outgassing and contamination from the LDEF and experiment related materials being flown. When compared to the prelaunch photograph, the C09 integrated tray seems to be in excellent condition. The Atomic Oxygen Interaction with Solid Surfaces experiment appears to have changed significantly during the LDEF mission. The S13G-LO white paint is seen to be gray in color, the polished aluminum cover plate is now white and some of the specimen that were dark in the prelaunch photograph are now seen as white. These changes are attributed to the effects of the direction and intensity of the light source when the photograph was taken. The experiment hardware, the specimen material and substrate seem to have no adverse effects from the space environment. Photo, Experiment(s) shown==AO114 : Interaction of Atomic Oxygen With Solid Surfaces at Orbital Altitudes Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-255.09.jpeg Classification==Prelaunch Photo, LaRC #==L89-04390 Photo, JSC #==None Photo, KSC #==KSC-384C-255.09 Photo, PI #==No value in DB Photo, Date Taken==01/18/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Space-Based Radar (SBR) Phased-Array Antenna Experiment occupies a six (6) inch deep LDEF end corner tray located on the space end of the LDEF. The SBR Phased-Array Antenna experiment consists of both passive and active parts. The passive part , shown in the left half of the experiment tray, investigates the dimensional stability of Kapton when exposed to induced stresses in the space environment. Continuous and spliced specimen of both plain Kapton (127 um thick) and glass reinforced Kapton (196 um thick) will be exposed for the entire mission. The Kapton specimen array contains eight 2.54-cm-wide specimen and sixteen (16) 1.27-cm-wide specimen. The specimen are stretched over an aluminum roller assembly and utilize a spring loaded mechanism to provide preselected stresses. An aluminum support structure houses two (2) identical set of specimen, one exposed to the total environment and one shadowed. The fasteners are non-magnetic stainless steel and the black surface is a thermal control coating, 3M-Nextel 401-610 (Black Velvet). The active part of the experiment, located in the right half of the tray, investigates the interaction between high voltage and low-Earth-orbit plasma. A fourteen (14) inch wide by twenty eight (28) inch long section of the Grumman SBR Phased-Array antenna consisting of two Kapton antenna planes and a perforated aluminum ground plane mounted on an aluminum support structure. Cop- per dipole elements deposited on the Kapton antenna plane provide the high voltage electrodes. The fasteners are non-magnetic stainless steel and the black surface is a thermal control coating, 3M-Nextel 401-610 (Black Velvet). Photo, Experiment(s) shown==AO133 : Effect of Space Environment on Space-Based Radar Phased-Array Antenna Associated Tray(s)==Tray Location: H07 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-288.jpeg Classification==Postflight Photo, LaRC #==L92-21195 Photo, JSC #==S32-S-288 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. The Space-Based Radar (SBR) Phased-Array Antenna occupies a six (6) inch deep LDEF end corner tray located on the space end of the LDEF. A light tan discoloration can be seen on the left and lower flanges of the experiment tray and a darker stain has discolored the originally white paint dots on the experiment tray clamp blocks. Dark brown stains on the LDEF structure are vis- ible in areas adjacent to the edge of thermal end panels that were designed to facilitate venting of the LDEF interior. The SBR Phased-Array Antenna experiment, consisting of an active part in the left half of the tray and a passive part located in the right half of the experiment tray, appears to be intact with no apparent physical damage. The black thermal coating on the passive part of the experiment appears unchanged while the black thermal coating on the active part of the experiment appears dark gray. The passive experiment Kapton specimen surfaces appear to have changed from specular to diffuse after exposure to the space environment. Photo, Experiment(s) shown==AO133 : Effect of Space Environment on Space-Based Radar Phased-Array Antenna Associated Tray(s)==Tray Location: H07 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-062.jpeg Classification==Flight Photo, LaRC #==L90-10368 Photo, JSC #==S32-75-062 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. The Space-Based Radar (SBR) Phased-Array Antenna occupies a six (6) inch deep LDEF end corner tray located on the space end of the LDEF. A shadow cast by the Orbiter covers most of the right half of the tray containing the active part of the experiment. Even in the shadow, a light tan discoloration can be seen on the left and lower flanges of the experiment tray and a darker stain has discolored the originally white paint dots on the experiment tray clamp blocks. Dark brown stains on the LDEF structure are visible in areas adjacent to the edge of thermal end panels designed to facilitate venting of the LDEF interior. The SBR Phased-Array Antenna experiment, consisting of an active part in the left half of the tray and a passive part located in the right half of the experiment tray, appears to be intact with no apparent physical damage. The black thermal coating on the passive part of the experiment appears unchanged while the black thermal coating on the active part of the experiment appears a dark gray. The passive experiment Kapton specimen surfaces appear to have changed from specular to diffuse when exposed to the space environment. Photo, Experiment(s) shown==AO133 : Effect of Space Environment on Space-Based Radar Phased-Array Antenna Associated Tray(s)==Tray Location: H07 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1990.01.jpeg Classification==Postflight Photo, LaRC #==L91-15659 Photo, JSC #==None Photo, KSC #==KSC-390C-1990.01 Photo, PI #==No value in DB Photo, Date Taken==03/15/1990 Photo, Description== The postflight photograph was taken in the KSC SAEF II facility after the experiment was removed from the LDEF. The Space-Based Radar (SBR) Phased-Array Antenna occupies a six (6) inch deep LDEF end corner tray located on the space end of the LDEF. A light tan discoloration is visible on the left and lower flanges of the experiment tray and also on the unpainted aluminum filler to the left of the passive part of the experiment. A darker stain has discolored the lower corners of the tray structure. The SBR Phased-Array Antenna experiment, consisting of an active part in the upper half of the tray and a passive part located in the lower half of the experiment tray, appears to be intact with no apparent physical damage. The black thermal coating on the active part of the experiment appears to have changed from a flat black to a dark gray while the coating on the passive part of the experiment appears less degraded. The exposed Kapton specimen surfaces in both the active and passive parts of the experiment appear to have changed from specular to diffuse from exposure to the space environment. Photo, Experiment(s) shown==AO133 : Effect of Space Environment on Space-Based Radar Phased-Array Antenna Associated Tray(s)==Tray Location: H07 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-001.jpeg Classification==Flight Photo, LaRC #==L90-10374 Photo, JSC #==S32-76-001 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay and shows the locations of two (2) LDEF experiments integrated into a six (6) inch deep LDEF peripheral tray. A brown discoloration is seen along the left half of the lower tray flange and also on the right half of the lower sidewall. Top and lower flanges appear to have very light discoloration and also have abrasions from prelaunch testing. for Large Space Structures Experiment (CMLSS) consist of epoxy-graphite and polysulfone-graphite samples in thicknesses varying from .016 inches to .024 inches. Tensile specimen were of two widths, 0.375 inches and 0.500 inches, and were 8-inches long with bonded, tapered end tabs. One-inch-square specimen of the tensile material were included to provide a more accurate measurement of mass loss due to environmental exposure. Some specimen were coated with sput- tered-metal deposits, nickel with an overcoat of silicon dioxide, to evaluate metals effectiveness in protecting the composites when exposed to atomic oxygen. The tensile specimen and larger rectangular shaped material samples are assembled on an aluminum support plate, located in the top one third (1/3rd) of the tray, with aluminum hold-down straps and non-magnetic stainless steel fasteners. Twelve specimen, six composite located near the left edge and six metal located near the right edge of the support plate, were late additions and are attached to the support plate with safety wire. An identical set of test specimens, mounted on the back side of the support plate, is exposed to only the temperature cycling and vacuum environment. Sixteen coated composite samples and fourteen thin polymeric and resin films the mounting plate in the left end of the tray center section. Forty-eight one-inch-square coated composite specimen are mounted in an aluminum base plate, in the center section of the tray, and partially masked with a thin aluminum cover plate with circular openings. Sidewall shadows on the experiment specimen are eliminated by mounting the support plate on fiberglass standoffs. The CMLSS experiment components located on the upper one third tray mounting plate appear to be intact and the mounting hardware secure. The outer edges of the experiment support plate and some of the hold down straps are discolored with a brown stain. Light discolorations can also be seen on samples located in the right row of tensile specimen. In the center section of the tray, a light tan discoloration is visible on the aluminum cover plates in the right half and on the mounting plate and hold down straps in the left half. The left half mounting plate also has a much darker brown discoloration in the lower left corner. Only a few fragments of the fourteen polymeric and resin thin film materials have survived the mission. Photo, Experiment(s) shown==AO134 : Space Exposure of Composite Materials for Large Space Structures Associated Tray(s)==Tray Location: B09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.38 in. W x 32.88 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1913.09.jpeg Classification==Postflight Photo, LaRC #==L91-02536 Photo, JSC #==None Photo, KSC #==KSC-390C-1913.09 Photo, PI #==No value in DB Photo, Date Taken==03/13/1990 Photo, Description== The postflight photograph was taken in SAEF II after the experiment tray was removed from the LDEF and shows the locations of two (2) experiments integrated into a six (6) inch deep LDEF peripheral tray. A brown discoloration is seen at the top end of the tray's left flange and also on the lower half of the tray's left sidewall. The tray's right and left flanges and each end of the top flange have abrasions from prelaunch testing. The Composite Materials for Large Space Structures Experiment (CMLSS) consists of epoxy / graphite and polysulfone / graphite samples in thicknesses varying from .016 inches to .024 inches. Tensile specimen were of two widths, 0.375 inches and 0.500 inches, and were 8-inches long with bonded, tapered end tabs. One-inch-square specimen of the tensile material were included to provide a more accurate measurement of mass loss due to environmental exposure. Some specimen were coated with sputtered-metal deposits, nickel with an overcoat of silicon dioxide, to evaluate metals effectiveness in protecting the composites when exposed to atomic oxygen. The tensile specimen and larger rectangular shaped material samples are assembled on an aluminum support plate, located in the top one third (1/3rd) of the tray, with aluminum hold-down straps and non-magnetic stainless steel fasteners. Twelve specimen, six composite located near the left edge and six metal located near the right edge of the support plate, were late additions and are attached to the support plate with safety wire. An identical set of test specimen, mounted on the back side of the support plate, is exposed to only the temperature cycling and vacuum environment. Sixteen coated composite samples and fourteen thin Polymeric and resin films the mounting plate in the left end of the tray center section. Forty eight one-inch-square coated composite spec- imen are mounted in an aluminum base plate, in the center section of the tray, and partially masked with a thin aluminum cover plate with circular openings. Sidewall shadows on the experiment specimen are eliminated by mounting the support plate on fiberglass standoffs. The CMLSS experiment components located on the upper one third tray mounting plate appear to be intact and the mounting hardware secure. The outer edges of the experiment support plate and some of the hold down straps are discolored with a brown stain. Light discolorations can also be seen on samples located in the right row of tensile specimen. In the center section of the tray, a light tan discoloration is visible on the aluminum cover plates in the right half and on the mounting plate and hold down straps in the left half. The left half mounting plate also has a much darker brown discoloration in the lower left corner. Only a few fragments of the fourteen polymeric and resin thin film materials have survived the mission. Photo, Experiment(s) shown==AO134 : Space Exposure of Composite Materials for Large Space Structures Associated Tray(s)==Tray Location: B09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.12 in. W x 36.30 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-59.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07027 Photo, JSC #==None Photo, KSC #==KSC-384C-59.01 Photo, PI #==No value in DB Photo, Date Taken==01/17/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF and shows the locations of two (2) LDEF experiments integrated into a six (6) inch deep LDEF peripheral tray. The Composite Materials for Large Space Structures Experiment (CMLSS) consist of epoxy / graphite and polysulfone / graphite samples in thicknesses varying from .016 inches to .024 inches. Tensile specimen were of two widths, 0.375 inches and 0.500 inches, and were 8-inches long with bonded, tapered end tabs. One-inch-square specimen of the tensile material were included to provide a more accurate measurement of mass loss due to environmental exposure. Some specimen were coated with sputtered-metal deposits, nickel with an overcoat of silicon dioxide, to evaluate metals effectiveness in protecting the composites when exposed to atomic oxygen. The tensile specimen and larger rectangular shaped material samples are assembled on an aluminum support plate, located in the top one third (1/3rd) of the tray, with aluminum hold-down straps and non-magnetic stainless steel fasteners. Twelve specimen, six composite located near the left edge and six metal located near the right edge of the support plate, were late additions and are attached to the support plate with safety wire. An identical set of test specimen, mounted on the back side of the support plate, is exposed to only the temperature cycling and vacuum environment. Sixteen coated composite samples and fourteen thin polymeric and resin films the mounting plate in the left end of the tray center section. Forty eight one-inch-square coated composite spec- imen are mounted in an aluminum base plate, in the center section of the tray, and partially masked with a thin aluminum cover plate with circular openings. Sidewall shadows on the experiment specimen are eliminated by mounting the support plate on fiberglass standoffs. Photo, Experiment(s) shown==AO134 : Space Exposure of Composite Materials for Large Space Structures Associated Tray(s)==Tray Location: B09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.12 in. W x 36.30 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-050.jpeg Classification==Flight Photo, LaRC #==L90-10413 Photo, JSC #==S32-77-050 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to berthing the LDEF in the Orbiter cargo bay. The Space Exposure on Pyroelectric Infrared Detectors Experiment (AO135) consist of twenty detectors of three different types of materials, lithium-tantalate, strontium-barium-niobate and triglycine-sulfide. The Pyroelectric infrered detector experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typi- cally placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-001) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, The Holographic Data Storage Crystal Experiment (AO044) with four crystals, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. The excess blue color in the photograph makes a detailed assessment of color changes difficult. The paint dots on the tray clamp blocks, initially white, appear to have darkened and tray flanges appear discolored. The experiment sun screens and base plate also appear discolored. The exposed experiment test specimen and their fiberglass-epoxy mountings appear to have survived the mission with minimum degradation. Photo, Experiment(s) shown==AO135 : Effect of Space Exposure on Pyroelectric Infrared Detectors Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2114.03.jpeg Classification==Postflight Photo, LaRC #==L91-10508 Photo, JSC #==None Photo, KSC #==KSC-390C-2114.03 Photo, PI #==No value in DB Photo, Date Taken==03/20/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the integrated experiment tray was removed from the LDEF and the sun screens removed. The Space Exposure on Pyroelectric Infrared Detectors Experiment (AO135) consist of twenty detectors of three different types of materials, lithium-tantalate, strontium-barium-niobate and triglycine-sulfide. The Pyroelectric infrered detector experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typi- cally placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, The Holographic Data Storage Crystal Experiment (AO044) with four crystals, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. A brown discoloration is clearly visible on the tray flanges. The location of experiment test specimen and their mountings are shown in this photograph. The fiberglass-epoxy mounting strip colors vary from the typical greenish-gray to a slate gray in proportion to their exposure. The red material on top of the aluminum support structure is a silicone rubber gasket between the sun screen and the structure. The gasket material missing adhered to the sun screens. Photo, Experiment(s) shown==AO135 : Effect of Space Exposure on Pyroelectric Infrared Detectors Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.05.jpeg Classification==Postflight Photo, LaRC #==L90-13450 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.05 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The Space Exposure on Pyroelectric Infrared Detectors Experiment (AO135) consist of twenty detectors of three different types of materials, lithium-tantalate, strontium-barium-niobate and triglycine-sulfide. The Pyroelectric infrered detector experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typi- cally placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, The Holographic Data Storage Crystal Experiment (AO044) with four crystals, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. The excess blue color in the flight photograph is no longer present. The paint dots on the tray clamp blocks, initially white, are brown and tray flanges appear to have a light tan discoloration. The experiment sun screens and base plate also appear to have the same discoloration. The exposed experiment test specimen and their fiberglass-epoxy mountings appear to have survived the mission. The fiberglass-epoxy mounting strip colors have changed from the typical greenish-gray to a slate gray and the colors of the test specimen appear to be much darker than in the prelaunch photograph. Photo, Experiment(s) shown==AO135 : Effect of Space Exposure on Pyroelectric Infrared Detectors Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1646.09.jpeg Classification==Postflight Photo, LaRC #==L91-07874 Photo, JSC #==None Photo, KSC #==KSC-390C-1646.09 Photo, PI #==No value in DB Photo, Date Taken==03/06/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The experiment trays upper and lower flanges have a light tan discoloration that is clearly visible in areas not protected by the tray clamp blocks. The two side flanges also appear to have a similar discoloration. The FRECOPA experiment appears to be intact with no apparent physical damage from exposure in space. Both the Meteoroid Impact Crater experiment mounting plate and the plates that provide masks for the open canisters seals have stained surfaces. The exposed experiment mounting plate however, appears to have a darker discoloration. The surfaces of the tray sidewalls, thermal blankets and wiring attachments, visible through openings in the canister cover plates, also appear discolored. The material samples on the bottom corners of the two lower canister cover plates do not appear to be discolored. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: B03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.18 in. W x 47.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-058.jpeg Classification==Flight Photo, LaRC #==L90-10415 Photo, JSC #==S32-77-058 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The French Cooperative Experiment (FRECOPA) flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the centers of the trays lower and left flanges and at the right end of the upper flange have changed from their original white color to a dark brown. The experiment tray flanges appear to have a light discolorations. The FRECOPA experiment appears to be intact with no apparent physical damage from exposure in space. Both the Meteoroid Impact Crater experiment mounting plate and the plates that provide masks for the open canisters seals have stained surfaces. The exposed experiment mounting plate however, appears to have a much darker discoloration. The material samples on the top corners of the two upper plates that provide masks for the open canister seals do not appear to be discolored. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: B03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.18 in. W x 47.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-330.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07170 Photo, JSC #==None Photo, KSC #==KSC-384C-330.01 Photo, PI #==No value in DB Photo, Date Taken==01/24/1984 Photo, Description== The prelaunch photograph of The French Cooperative Experiment (FRECOPA) was taken in SAEF II at KSC prior to installation on the LDEF. The FRECOPA is completely self-contained in a twelve (12) inch deep LDEF experiment tray and consist of three (3) canisters that open after the LDEF is placed in orbit to expose sample materials of nine different French experiments to the space environment for ten (10) months, an aluminum mounting plate for samples exposed for the entire mission, LDEF provided batteries, a preprogrammed controller and the sample materials. The experiment structure is fabricated from aluminum alloys and assembled using non-magnetic stainless steel fasteners. The photograph shows the location of the three one-sixth experiment tray sections covered by aluminum plates with openings that accommodate the open canisters, the two one-sixth sections covered with Teflon/glass thermal covers and the one-sixth tray experiment mounting plate populated with six metallic faced surfaces and twenty seven glass samples for the study of meteoroid impact craters on various materials and twenty four thermal control coating samples. Material samples are also attached to the top corners of the canister cover plates located in the upper right and upper left corners of the experiment tray. Wire cables for the control systems, the black canister housing and internal thermal insulation blankets are visible through openings in the cover plates that provide masks for the open canister. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: B03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.18 in. W x 47.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-256.02.jpeg Classification==Prelaunch Photo, LaRC #==L89-04391 Photo, JSC #==None Photo, KSC #==KSC-384C-256.02 Photo, PI #==No value in DB Photo, Date Taken==01/18/1984 Photo, Description== The prelaunch photograph was taken in the SAEF II at KSC prior to installation of the integrated experiment tray on the LDEF. The Growth of Crystals From Solution in Low Gravity experiment consist of four specially designed reactors housed in a thermally controlled aluminum cylinder, heaters, a data recording and control system and lithium / sulfur dioxide batteries as the power source. The experiment was thermally isolated from the earth albedo by an aluminum cover plate attached to clips installed on the experiment tray sidewalls. The cover plate outward facing surface was coated with Chemglaze A276 white paint over a Chemglaze 9924 wash primer; the aluminum surface facing the tray interior remained uncoated. The experiment was assembled in a twelve (12) inch deep LDEF experiment tray, the cover plate installed and the tray released for mounting on the earth facing end of the LDEF. The experiment was assembled with non-magnetic stainless steel fasten ers. Photo, Experiment(s) shown==AO139A : Growth of Crystals From Solutions in Low Gravity Associated Tray(s)==Tray Location: G06 - Orientation: Earth-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-066.jpeg Classification==Flight Photo, LaRC #==L90-10391 Photo, JSC #==S32-76-066 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Growth of Crystals from Solutions in Low Gravity Experiment was taken while the LDEF was attached to the Orbit er's RMS arm prior to berthing in the Orbiter's cargo bay. The discoloration of the paint dots on the experiment tray clamp blocks, originally-white, is attributed to the lighting and not a change in optical properties of the paint. In the flight photograph, the cover plate for the Growth of Crystals from Solutions in Low Gravity Experiment appears to have changed from white to brown. The narrow band of discolorations at the right, left and upper edges of the cover plate appear to be areas of masking tape residue that have turned brown Photo, Experiment(s) shown==AO139A : Growth of Crystals From Solutions in Low Gravity Associated Tray(s)==Tray Location: G06 - Orientation: Earth-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1704.05.jpeg Classification==Postflight Photo, LaRC #==L91-11642 Photo, JSC #==None Photo, KSC #==KSC-390C-1704.05 Photo, PI #==No value in DB Photo, Date Taken==03/07/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment tray was removed from the LDEF. The experiment tray flanges have become discolored with a light tan stain except where the tray clamp blocks were located. A darker stain appears to exist at the intersection of the white cover plate and the upper left flange of the experiment tray. The Crystal Growth experiment appears to have survived the extended mission with no visible damage. The experiment cover plate, originally white, appears to be discolored by a very light brown stain but is intact and securely in place. Photo, Experiment(s) shown==AO139A : Growth of Crystals From Solutions in Low Gravity Associated Tray(s)==Tray Location: G06 - Orientation: Earth-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.11.jpeg Classification==Postflight Photo, LaRC #==L90-13421 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.11 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The post flight photograph was taken in the SAEF II at KSC prior to removal of the experiment tray from the LDEF and shows the location of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The experiment tray flanges appear to have a light tan discoloration as do the originally white paint dots on the tray clamp blocks. The Experiment, Passive Exposure of Earth Radiation Budget Experiment Components (ERB), is divided between two (2) experiment modules, one module containing solar-channel components is located in an integrated experiment tray at tray location B08, this location, and a second module containing three (3) ERB Earth flux channel components is located in an integrated experiment tray on the Earth end of the LDEF at tray location G12. The ERB experiment, located in the lower right corner one sixth (1/6th) of the integrated tray, consist of ten (10) solar sensors mounted in a Nimbus ERB solar array block and located in the center of the experiment module and ten (10) non-ERB interference filters mounted in the circular holders above and below the ERB components. Since the B08 tray experiment mounting surface faced thirty (30) degrees off LDEF's leading edge, the Nimbus solar array block was tilted 30 degrees to face forward. The ERB experiment appears to be intact with no apparent physical damage. Several irregular shaped black marks appear on the white paint along the top edge of the aluminum mounting plate. The marks were also visible on the flight photograph. The white paint appears to have a slight brownish tint in this photograph. Photo, Experiment(s) shown==AO147 : Passive Exposure of Earth Radiation Budget Experiment Components Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-294.07.jpeg Classification==Prelaunch Photo, LaRC #==L84-07116 Photo, JSC #==None Photo, KSC #==KSC-384C-294.07 Photo, PI #==No value in DB Photo, Date Taken==01/01/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF and shows the locations of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The Experiment, Passive Exposure of Earth Radiation Budget Experiment Components (ERB), is divided between two (2) experiment modules, one module containing solar-channel components is located in an integrated experiment tray at tray location B08, this location, and a second module containing three (3) ERB Earth flux channel components is located in an integrated experiment tray on the Earth end of the LDEF at tray location G12. The ERB experiment, located in the lower right corner one sixth (1/6th) of the integrated tray, consist of ten (10) solar sensors mounted in a Nimbus ERB solar array block and located in the center of the experiment module and ten (10) non-ERB interference filters mounted in the circular holders above and below the ERB components. The ERB components are mounted on an aluminum plate using non-magnetic stainless steel fasteners. The mounting plate exterior surface, the infrared filter holders and the curved surface of the Nimbus ERB solar array block are painted white to fulfill thermal control requirements. Since the B08 tray experiment mounting surface faced thirty (30) degrees off LDEF's leading edge, the Nimbus solar array block was tilted 30 degrees to face forward to provide a sun view similar to the ERB experiment on Nimbus. Photo, Experiment(s) shown==AO147 : Passive Exposure of Earth Radiation Budget Experiment Components Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-026.jpeg Classification==Flight Photo, LaRC #==L90-10380 Photo, JSC #==S32-76-026 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay and shows the locations of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The experiment tray flanges appear to have a light tan discoloration as do the originally white paint dots on the top center and right center tray clamp blocks. Irregular shaped darker discolorations are visible on the inside of the left tray flange. The Passive Exposure of Earth Radiation Budget Experiment Components (ERB) is divided between two (2) experiment modules, one module containing solar-channel components is located in an integrated experiment tray at tray location B08, this location, and a second module containing three (3) ERB Earth flux channel components is located in an integrated experiment tray on the Earth end of the LDEF at tray location G12. The ERB experiment ,located in the lower right corner one sixth (1/6th) of the integrated tray, consist of ten (10) solar sensors mounted in a Nimbus ERB solar array block and located in the center of the experiment module and ten (10) non-ERB interference filters mounted in the circular holders above and below the ERB components. Since the B08 tray experiment mounting surface faced thirty (30) degrees off LDEF's leading edge, the Nimbus solar array block was tilted 30 degrees to face forward. The ERB experiment appears to be intact with no apparent physical damage.The different colors of the infrared filter surfaces are reflections of the surrounding environment and not from exposure to space. The white paint on the aluminum mounting plate has several irregular shaped black marks along the top edge. The marks were not visible on the prelaunch photograph. Photo, Experiment(s) shown==AO147 : Passive Exposure of Earth Radiation Budget Experiment Components Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1997.02.jpeg Classification==Postflight Photo, LaRC #==L91-11718 Photo, JSC #==None Photo, KSC #==KSC-390C-1997.02 Photo, PI #==No value in DB Photo, Date Taken==03/15/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF.The Passive Exposure of Earth Radiation Budget Experiment Components (AO147) is one of four experiments located in a three (3) inch deep LDEF end center tray. Additional Earth Radiation Budget (ERB) components are located in a peripheral LDEF integrated experiment tray in the B08 tray location. The lower experiment tray flange is discolored with a light tan stain except where the tray clamp blocks were located. The substructure also is discolored along the lower left corner. The experiment cover plate, originally painted white, has a light tan discoloration over most of the surface area. The discoloration appears to darken beneath the ERB components and toward the lower left section of the cover plate. A tan discoloration can be seen on Teflon spacers in the cir cular part of the upper right component. Note the tear drop shaped darker discolorations below the screw heads at the center of the left edge and the center of the lower edge of the cover plate and below the two screw heads at the lower corners of the lower ERB components. The experiment hardware seems to be intact with no apparent damage. Photo, Experiment(s) shown==AO147 : Passive Exposure of Earth Radiation Budget Experiment Components Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.25 in. W x 16.62 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07165 Photo, JSC #==None Photo, KSC #==KSC-384C-317.08 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Passive Exposure of Earth Radiation Budget Experiment Components (AO147) is one of four experiments located in a three (3) inch deep LDEF end center tray. Additional Earth Radiation Budget (ERB) components are located in a peripheral LDEF integrated experiment tray in the B08 tray location. The Earth Radiation Budget (ERB) experiment is located in the lower left quadrant of the inte grated tray. Three Earth flux channel types of ERB components are mounted on an aluminum cover plate attached to an aluminum substructure that is used to raise the cover plate to a level that minimizes shadowing of the ERB components by the experiment tray sidewall. The exterior sur face of the cover plate is coated with a white paint, Chemglaze II A276, needed to meet thermal control requirements. The ERB Earth flux channel components, housed individually in aluminum holders, are mounted in the center of the white cover plate. Non-magnetic stainless steel fasteners were used to assemble the experiment hardware and for installation of the experiment into the LDEF tray. Photo, Experiment(s) shown==AO147 : Passive Exposure of Earth Radiation Budget Experiment Components Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.25 in. W x 16.62 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-054.jpeg Classification==Flight Photo, LaRC #==L90-10388 Photo, JSC #==S32-76-054 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. Shadows of the remote manipulator system cover a significant area of the photograph. The Pas sive Exposure of Earth Radiation Budget Experiment Components (AO147) is one of four exper iments located in a three (3) inch deep LDEF end center tray. Additional Earth Radiation Budget (ERB) components are located in a peripheral LDEF integrated experiment tray in the B08 tray location. The experiment cover plate, originally painted white, has a light tan discoloration over most of the surface area. The discoloration appears to darken beneath the ERB components and toward the lower left section of the cover plate. A tan discoloration can be seen on Teflon spacers in the cir cular part of the upper right component.The experiment hardware seems to be intact with no apparent damage. Photo, Experiment(s) shown==AO147 : Passive Exposure of Earth Radiation Budget Experiment Components Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.25 in. W x 16.62 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-027.jpeg Classification==Flight Photo, LaRC #==L90-10381 Photo, JSC #==S32-76-027 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay and shows the Solar Array Materials Passive LDEF Experiment (SAMPLE) on the LDEF. Six (6) plates of passive components, provided by various experiment organizations and designated plate I thru plate VI, are shown mounted in a three (3) inch deep LDEF peripheral tray. All six plates are aluminum and attach to the LDEF experiment tray with non-magnetic stainless steel fasteners. Plate I, located in the upper left corner, consist of a combination of solar cells with and without covers, solar cell modules and solar arrays assembled on the baseplate. Two of the four solar arrays are missing and one appears to be attached at only one corner. Other components appear to be secure. Plate II in the left center section, has twenty-seven (27) composite samples, carbon fiber and glass fiber, mounted on the baseplate. The composites appear to be intact with no physical damage. Plate III, in the lower left corner, consist mostly of metallized and thin polymeric films (Kapton, Mylar, Teflon , white Tedlar,etc.). The thin films without protective coatings sustained significant damage and most were destroyed. The metallized film apparently survived with minimum damage. Plate IV located in the upper right corner consist of metals and coatings mounted in an aluminum baseplate and covered with a thin aluminum coverplate that partially mask the specimen. Several of the coatings appear to have changed to a darker color and a light brown discoloration appears around the outer edges of the mounting plate and along the right edge of the coverplates. Plate V, in the right center section, contained thermal plastics and structural film configured into tensile and shear specimen. All specimens, including the tape holding down the small specimen in the lower right corner, have darkened significantly during the extended time in space. Plate VI, in the lower right corner, is populated with solar cells and associated components such as covers, encapsulants,adhesives, etc.. The solar cell components appear to be intact with no apparent physical damage.The colors of the specimen, however, appear to have darkened. Photo, Experiment(s) shown==AO171 : Solar-Array-Materials Passive LDEF Experiment Associated Tray(s)==Tray Location: A08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.38 in. W x 49.38 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.12.jpeg Classification==Postflight Photo, LaRC #==L90-13422 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.12 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The post flight photograph was taken in the SAEF II at KSC prior to removal of the experiment tray from the LDEF and shows the Solar Array Materials Passive LDEF Experiment (SAMPLE) on the LDEF. Six (6) plates of passive components, provided by various experiment organizations and designated plate I thru plate VI, are shown mounted in a three (3) inch deep LDEF peripheral tray. All six plates are aluminum and attach to the LDEF experiment tray with non-magnetic stainless steel fasteners. Plate I, located in the upper right corner, consist of a combination of solar cells with and without covers, solar cell modules and solar arrays assembled on the baseplate. Three of the four solar arrays are missing. Other components appear to be secure. Plate II in the top center section, has twenty seven (27) composite samples, carbon fiber and glass fiber, mounted on the baseplate. The composites appear to be intact with no physical damage. Plate III, in the upper left corner, consist of metallized and thin polymeric films (Kapton, Mylar, Teflon , white Tedlar,etc.). The thin films without protective coatings sustained significant damage and most were destroyed. The thin film specimen hanging by one end in the flight photograph is missing. The metallized film apparently survived the mission with minimum damage. Plate IV located in the lower right corner consist of metals and coatings mounted in an aluminum baseplate and covered with a thin aluminum coverplate that partially mask the specimen. Several of the coatings appear to have darkened and a unique pattern of light brown discoloration appears around the outer edges of the mounting plate and along the lower edge of the coverplates. Plate V, in the lower center section, contained thermal plastics and structural film configured into tensile and shear specimen. All specimen, including the tape holding down the small specimen in the lower right corner, have darkened significantly during the extended time in space. Plate VI, in the lower left corner, is populated with solar cells and associated components such as covers, encapsulants,adhesives, etc. The solar cell components appear to be intact with no apparent physical damage.The colors of the specimen, however, appear to have darkened. The photographic lighting angle has significantly highlighted abrasions on the mounting plate surface. Photo, Experiment(s) shown==AO171 : Solar-Array-Materials Passive LDEF Experiment Associated Tray(s)==Tray Location: A08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.38 in. W x 49.38 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-538.10.jpeg Classification==Prelaunch Photo, LaRC #==L89-04422 Photo, JSC #==None Photo, KSC #==KSC-384C-538.10 Photo, PI #==No value in DB Photo, Date Taken==01/30/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Solar Array Materials Passive LDEF Experiment (SAMPLE) on the LDEF. Six (6) plates of passive components, provided by various experiment organizations and designated plate I thru plate VI, are shown mounted in a three (3) inch deep LDEF peripheral tray. All six plates are aluminum and attach to the LDEF experiment tray with non-magnetic stainless steel fasteners. Plate I, located in the upper right corner, consist of a combination of solar cells with and without covers, solar cell modules and solar arrays assembled on the baseplate. Plate II in the upper center section, has twenty seven (27) composite samples, carbon fiber and glass fiber, mounted on the baseplate. Plate III, in the upper left corner, consist mostly of metallized and thin polymeric films (Kapton, Mylar, Teflon , white Tedlar,etc.). Plate IV located in the lower right corner consist of metals and coatings mounted in an aluminum baseplate and covered with a thin aluminum coverplate that partially mask the specimen. Plate V contained thermal plastics and structural film configured into tensile and shear specimen. Plate VI was populated with solar cells and associate components (covers, encapsulants,adhesives, etc.). Photo, Experiment(s) shown==AO171 : Solar-Array-Materials Passive LDEF Experiment Associated Tray(s)==Tray Location: A08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.38 in. W x 49.38 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-731.11.jpeg Classification==Postflight Photo, LaRC #==L92-17662 Photo, JSC #==None Photo, KSC #==KSC-390C-731.11 Photo, PI #==No value in DB Photo, Date Taken==02/01/1990 Photo, Description== The postflight photograph of the integrated tray (D02) was taken in the Operations and Checkout (O&C) building after the LDEF was transferred from the KSC Payload Canister to the LDEF Assembly and Transport System (LATS). The Radiation on Glasses experiment contains sixty-eight (68) cylindrical disc glass samples mounted in Teflon retainers and installed on an aluminum mounting plate. The aluminum mounting plate is painted with Chemglaze II A-276 white paint to maintain the samples within acceptable thermal limits. The mounting plate is attached to an adapter structure that raises the samples to a height in the tray that minimizes shadowing from the tray sidewalls. The fasteners are non-magnetic stainless steel. The Radiation on Glasses experiment appears to be intact with little if any impact damage. One impact crater is seen, as a white dot, on the mounting plate to the right of the third row of samples from the bottom. The brown colored surface, originally white, does not seem to have changed from the flight photograph. Photo, Experiment(s) shown==AO172 : Effects of Solar Radiation on Glasses Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==O & C Low Bay Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-013.jpeg Classification==Flight Photo, LaRC #==L90-10495 Photo, JSC #==S32-89-013 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken after the LDEF was retrieved and prior to berthing in the Orbiter cargo bay. The Radiation on Glasses experiment contains sixty-eight (68) cylindrical disc glass samples mounted in Teflon retainers and installed on an aluminum mounting plate. The aluminum mounting plate is painted with Chemglaze II A-276 white paint to maintain the samples within acceptable thermal limits. The mounting plate is attached to an adapter structure that raises the samples to a height in the tray that minimizes shadowing from the tray sidewalls. The fasteners are non-magnetic stainless steel. The Radiation on Glasses experiment, located in the upper left corner, appears to be intact with little if any impact damage.The experiment mounting plate, orginally painted white, is now a uniform brown color. The fasteners also seem to be discolored by the stain. Other than the change in colors, the experiment appears to very good condition. Photo, Experiment(s) shown==AO172 : Effects of Solar Radiation on Glasses Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07158 Photo, JSC #==None Photo, KSC #==KSC-384C-317.01 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The Solar Radiation on Glasses experiment, locate in the lower left corner of the tray, contains sixty-eight (68) cylindrical disc glass samples mounted in Teflon retainers and installed on an aluminum mounting plate. The aluminum mounting plate is painted with Chemglaze II A-276 white paint to maintain the samples within acceptable thermal limits. The mounting plate is attached to an adapter structure that raises the samples to a height in the tray that minimizes shadowing from the tray sidewalls. The fasteners are nonmagnetic stainless steel. Photo, Experiment(s) shown==AO172 : Effects of Solar Radiation on Glasses Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1997.02.jpeg Classification==Postflight Photo, LaRC #==L91-11718 Photo, JSC #==None Photo, KSC #==KSC-390C-1997.02 Photo, PI #==No value in DB Photo, Date Taken==03/15/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Effects of Solar Radiation on Glasses Experiment is one of four experiments located in a three (3) inch deep LDEF end center tray. An additional Effects of Solar Radiation on Glasses Experiment is located in a peripheral LDEF integrated experiment tray in the D02 tray location. The Solar Radiation on Glasses experiment, located in the lower right quadrant of the integrated tray, appears to be intact with no apparent physical damage. The stainless steel vent screens in the four corners appear to be coated with a brown discoloration similar to that seen beneath the Teflon detector holders. A brown discoloration is also visible on the lower right corner of the mounting plate. The lower experiment tray flange is discolored in all areas not covered by the experiment tray clamp blocks. The installation loops of the circular clips that retain the glass detector are visible around the inner radius of the Teflon holder in several locations . Photo, Experiment(s) shown==AO172 : Effects of Solar Radiation on Glasses Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.3 in. W x 16.68 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-054.jpeg Classification==Flight Photo, LaRC #==L90-10388 Photo, JSC #==S32-76-054 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. Shadows of the remote manipulator system cover a significant area of the photograph. The Effects of Solar Radiation on Glasses Experiment is one of four experiments located in a three (3) inch deep LDEF end center tray. An additional Effects of Solar Radiation on Glasses Experiment is located in a peripheral LDEF integrated experiment tray in the D02 tray location. The Solar Radiation on Glasses experiment, located in the lower right quadrant of the integrated tray, appears to be intact with with no damage visible on the the areas not in shadow. The light spots around the periphery of the blue glass detectors are the installation loops on the circular clips used to retain the glass detectors in their Teflon holders. A brown discoloration on the experiment mounting plate and below the Teflon detector holders provides an indication of the contamination pattern across the face of the experiment. The discoloration is also visible on the lower right corner of the mounting plate and on the lower right half of the experiment tray flange. Photo, Experiment(s) shown==AO172 : Effects of Solar Radiation on Glasses Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.3 in. W x 16.68 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07165 Photo, JSC #==None Photo, KSC #==KSC-384C-317.08 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Effects of Solar Radiation on Glasses Experiment is one of four experiments located in a three (3) inch deep LDEF end center tray. An additional Effects of Solar Radiation on Glasses Experiment is located in a peripheral LDEF integrated experiment tray in the D02 tray location. The Solar Radiation on Glasses experiment, located in the lower right quadrant of the integrated tray, contains fifty-two (52) cylindrical disc glass samples mounted in white opaque Teflon retain ers. The retainers are installed on an aluminum mounting plate painted with thermal control coat ings, Chemglaze II A-276 white paint on the exterior surface and Chemglaze Z-306 black paint on the interior surface, to maintain the experiment samples within acceptable thermal limits. The experiment mounting plate in attached to an adapter structure that raises the samples to a height in the tray that minimizes shadowing from the tray sidewalls. The fasteners are non-magnetic stain less steel. Stainless steel vent screens are located near the four corners of the mounting plate to protect against internal pressure buildup. Photo, Experiment(s) shown==AO172 : Effects of Solar Radiation on Glasses Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.3 in. W x 16.68 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-609.02.jpeg Classification==Postflight Photo, LaRC #==L92-17828 Photo, JSC #==None Photo, KSC #==KSC-390C-609.02 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The Graphite-Polyimide and Graphite-Epoxy Mechanical Properties experiment postflight photograph was taken in the Orbiter Processing Facility during the period when the LDEF was being transferred from the Orbiter cargo bay to the KSC Payload Transporter. The photograph shows considerably more detail than the flight photograph. The horizontal lines on the honeycomb panel that appear to be cracks from space exposure are instead fine lines of excess epoxy resin formed during the bagging and curing process. The harsh white color of the epoxy adhesive along the rivet lines is from the lighting conditions in the OPF. The brown discoloration on the paint dots and the stain on the aluminum mounting strips appear to have changed little from the flight photograph. The greater detail does show that a stain exists at most composite and mounting strip interfaces. Photo, Experiment(s) shown==AO175 : Evaluation of Long-Duration Exposure to the Natural Space Environment on Graphite-Polyimide and Graphite-Epoxy Mechanical Properties Associated Tray(s)==Tray Location: A01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.38 in. W x 49.38 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-221.01B.jpeg Classification==Prelaunch Photo, LaRC #==L84-07083 Photo, JSC #==None Photo, KSC #==KSC-384C-221.01B Photo, PI #==No value in DB Photo, Date Taken==01/13/1984 Photo, Description== The Graphite-Polyimide and Graphite-Epoxy Mechanical Properties experiment is located in two (2) three (3) inch deep peripheral trays, A01 and A07. The experiment hardware configuration in the A01 tray consists of a graph- ite-epoxy honeycomb sandwich panel in the lower one half (1/2) of the tray, a graphite-epoxy panel in the upper right one third (1/3rd) section and two (2) graphite-polyimide panels, one in the upper center and one in the upper left sections of the experiment tray. The panels are supported by a substructure and held in place with aluminum strips and non-magnetic stainless steel fasteners. The mounting system, designed to allow for differential thermal expansion, minimizes the risk of inducing high stresses into the test panels. Photo, Experiment(s) shown==AO175 : Evaluation of Long-Duration Exposure to the Natural Space Environment on Graphite-Polyimide and Graphite-Epoxy Mechanical Properties Associated Tray(s)==Tray Location: A01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.38 in. W x 49.38 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-029.jpeg Classification==Flight Photo, LaRC #==L90-10430 Photo, JSC #==S32-78-029 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Graphite-Polyimide and Graphite-Epoxy Mechanical Properties flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The discoloration patterns seen in the prelaunch photograph remain unchanged. The identification numbers on all panels have been changed to a light brown color. The ripple patterns seen on the polyimide panels are the results of manufacturing techniques and not from exposure to space. The paint dot on the clamp in the center of the tray's right flange has changed from its original white color to a light brown. The light green stains observed on the aluminum mounting strips have turned very dark in most of the stained areas. Photo, Experiment(s) shown==AO175 : Evaluation of Long-Duration Exposure to the Natural Space Environment on Graphite-Polyimide and Graphite-Epoxy Mechanical Properties Associated Tray(s)==Tray Location: A01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.38 in. W x 49.38 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-725.04.jpeg Classification==Postflight Photo, LaRC #==L92-17551 Photo, JSC #==None Photo, KSC #==KSC-390C-725.04 Photo, PI #==No value in DB Photo, Date Taken==02/01/1990 Photo, Description== The postflight photograph was taken in the Operations and Control (O&C) facility after the LDEF had been transferred from the KSC Payload Transporter to the LDEF Assembly and Transport System (LATS) and shows more detail than the flight photograph. The areas on the aluminum mounting strips where the coating has been scraped and/or abraided can be seen in greater detail under the better lighting conditions. The coating color remains essentially the same. The white paint dots on the tray clampblocks have changed little from the orginal color. PMR-15 Graphite-Polyimide Panel (precured) - The PMR-15 graphite-polyimide laminated panel (T40T30060-009) postflight photograph provides more detail than the flight photograph. The geometric pattern seen on the flight photograph is not visible, however, the horizontal lines, cracks and/or crazing, observed previously are better defined. A gray haze or dust appears to cover the gray/brown panel surface. The yellow colored identification numbers seem to be a little lighter than in the flight photograph but the white marking in the upper left corner do not appear to have changed. Scratch marks/abrasions on the lower left edge of panel were on prelaunch photographs. F-178/T300 Graphite-Polyimide Panel (cocured) - The 178/T300 graphite-polyimide panel (T40T30060-005) seems to have changed in color from the light gray in the flight photograph to a brownish gray. The yellow identification numbers seem lighter while the white marking in the upper left corner appear brighter. The fine horizontal lines, cracks and/or crazing, are still visible on the panel surface. F178/T300 Graphite-Polyimide Panel (precured) - The 178/T300 graphite-polyimide laminated panel (T40T30060-001) seems to have changed to a brownish gray from the light gray color seen in the flight photograph. The yellow identification numbers and the white marking seen on the lower right corner of the panel appear the same as in the flight photograph. The fine horizontal lines, cracks and/or crazing, are still visible on the panel surface. Photo, Experiment(s) shown==AO175 : Evaluation of Long-Duration Exposure to the Natural Space Environment on Graphite-Polyimide and Graphite-Epoxy Mechanical Properties Associated Tray(s)==Tray Location: A07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==O & C Low Bay Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-095.jpeg Classification==Flight Photo, LaRC #==L90-10398 Photo, JSC #==S32-76-095 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on the tray clampblocks have changed little from the orginal white color. The dots along the lower tray flange seem to have a faint light brown tint. The dull gold coating observed on the aluminum mounting strips in the prelaunch photograph has turned to a medium brown. The areas where the coating was scraped or abraided away appears as a metallic surface. PMR-15 Graphite-Polyimide Panel (precured) - The PMR-15 graphite-polyimide laminated panel (T40T30060-009) appears to have changed from the prelaunch brown color to a light gray. A geometric pattern, probably the results of the laminating process, is visible on the panel surface. Fine horizontal lines, cracks and/or crazing, can be seen over the geometrical pattern. The yellow colored identification numbers seem to be a little darker in the flight photograph but the white marking in the upper left corner do not appear to have changed. Scratch marks / abrasions on the lower left edge of panel were on prelaunch photographs. F-178/T300 Graphite-Polyimide Panel (cocured) - The 178/T300 graphite-polyimide panel (T40T30060-005) seems to have changed from the pre-launch dark brown to a light gray color. The yellow identification numbers seem darker in the flight photograph while the white marking in the upper left corner appear brighter. There appears to be fine horizontal lines, cracks and/or crazing, on the panel surface. F178/T300 Graphite-Polyimide Panel (precured) - The 178/T300 graphite-polyimide laminated panel (T40T30060-001) seems to have changed from the prelaunch dark brown color with a lighter brown area along its vertical center, extending from top to bottom, to a uniform light gray color. The yellow identification numbers seem to be a little darker than in the prelaunch photograph. The white marking seen on the lower right corner of the panel appeared to be off-white in the prelaunch photograph. There appears to be fine horizontal lines, cracks and/or crazing, on the panel surface. Photo, Experiment(s) shown==AO175 : Evaluation of Long-Duration Exposure to the Natural Space Environment on Graphite-Polyimide and Graphite-Epoxy Mechanical Properties Associated Tray(s)==Tray Location: A07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-209.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07071 Photo, JSC #==None Photo, KSC #==KSC-384C-209.01 Photo, PI #==No value in DB Photo, Date Taken==01/16/1984 Photo, Description== The Graphite-Polyimide and Graphite-Epoxy Mechanical Properties experiment fills two (2) three (3) inch deep peripheral trays, A01 and A07. The experiment in the A07 experiment tray, shown in this photograph, consist of three (3) Graphite-Polyimide laminate panels and associated mounting hardware. Each panel occupies one third (1/3) of the LDEF experiment tray; a PMR-15 precured graphite-polyimide panel (T40T30060-009) in the right one third section, a F-178/T300 cocured graphite-polyimide panel (T40T30060-005) in the center one third section and a F-178/T300 precured graphite-polyimide panel (T40T30060-001) is in the left one third section of the tray. The panels are held in place with aluminum strips and non-magnetic stainless steel fasteners. The aluminum strips are covered with a dull gold coating over most of the exposed surface. The coating has been scraped from the aluminum mounting strip near the upper left tray corner. The mounting system, designed to allow for differential thermal expansion, minimizes the risk of inducing high stresses into the test panels. PMR-15 Graphite-Polyimide Panel (precured) - The PMR-15 graphite-polyimide laminated panel (T40T30060-009) is a uniform dark brown with a yellow identification number. The panel has several off-white marks in the lower right corner and light grayish-brown discolorations can be seen behind the identification number and behind the off-white marks. F-178/T300 Graphite-Polyimide Panel (cocured) - The F178/T300 graphite-polyimide laminated panel (T40T30060-005) is also a dark brown with a yellow identification number and small offwhite marks in the lower right corner. F-178/300 Graphite-Polyimide Panel (precured) - The F178/300 graphite-polyimide laminated panel (T40T30060-001) is a dark brown color with a yellow identification number and small offwhite marks in the panels upper left corner. The panel appears to have a lighter brown area along its vertical center that extends from the bottom to the top of the panel. Photo, Experiment(s) shown==AO175 : Evaluation of Long-Duration Exposure to the Natural Space Environment on Graphite-Polyimide and Graphite-Epoxy Mechanical Properties Associated Tray(s)==Tray Location: A07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.05.jpeg Classification==Prelaunch Photo, LaRC #==L84-07162 Photo, JSC #==None Photo, KSC #==KSC-384C-317.05 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar with a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1066.06.jpeg Classification==Postflight Photo, LaRC #==L90-13475 Photo, JSC #==None Photo, KSC #==KSC-390C-1066.06 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The white paint dot on the experiment tray clamp blocks located at the center of the trays upper and right flanges and at the left end of the trays lower flange appear to be discolored by a brown stain. The experiment tray flanges also appear to be coated but with a lighter colored stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar with a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage. It appears less taut than in the flight photograph. The uniformly located oval spots on the thermal cover are areas where Velcro pads attach the thermal cover to the support frame and appear more visible than in the prelaunch photograph. The scallop effect around the cover edges occurs between the cover attach points and shows the upper edge of the support frame. The ground strap appears to be in place with no visible damage but is a darker color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-055.jpeg Classification==Flight Photo, LaRC #==L90-10414 Photo, JSC #==S32-77-055 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. In this photograph, the A02 tray is located in the lower row. The white paint dot on the experiment tray clamp block appear to be discolored with a brown stain. The experiment tray flanges also appear to be coated but with a lighter colored stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except LDEF spacecraft 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar with a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with out visible damage but more taut than in the prelaunch photograph. The wrinkled spots on the thermal cover are over areas where Velcro pads are bonded to the backside of the cover. The rippled effect around the cover edges occurs between the cover attach points. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1761.10.jpeg Classification==Postflight Photo, LaRC #==L91-07617 Photo, JSC #==None Photo, KSC #==KSC-390C-1761.10 Photo, PI #==No value in DB Photo, Date Taken==03/09/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after the experiment tray was removed from the LDEF and the silvered Teflon thermal cover removed. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. A copper coated pressure sensitive tape was used to provide an electrical ground strap between the thermal cover and the LDEF structure. All experiment hardware appears to be in prelaunch condition and securely in place. The three cylindrical pressure vessels containing the experiment detectors are shown mounted in the experiment tray with the frame for mounting the thermal cover in the foreground. The white rectangles on the frame are Velcro pads bonded to the frame for attaching the thermal cover and appear in excellent condition. The top half of the cylinders and the thermal cover frame were painted black to meet thermal control requirements. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-403.03.jpeg Classification==Prelaunch Photo, LaRC #==L89-04411 Photo, JSC #==None Photo, KSC #==KSC-384C-403.03 Photo, PI #==No value in DB Photo, Date Taken==01/27/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. The apparent discolorations on the specular thermal cover are reflections of the surrounding area. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-832.07.jpeg Classification==Postflight Photo, LaRC #==L90-13354 Photo, JSC #==None Photo, KSC #==KSC-390C-832.07 Photo, PI #==No value in DB Photo, Date Taken==02/07/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The paint dots on the experiment tray clamp blocks, originally white, appears to be discolored by a brown stain. The experiment tray flanges also appear to be coated but with a lighter colored stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage. It appears less taut than in the flight photograph. The uniformly located oval spots on the thermal cover are areas where Velcro pads attach the thermal cover to the support frame and appear more visible than in the prelaunch photograph. The scallop effect around the cover edges occurs between the cover attach points and shows the upper edge of the support frame. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-079.jpeg Classification==Flight Photo, LaRC #==L90-10445 Photo, JSC #==S32-78-079 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the clamp blocks located at the center of the experiment trays upper and right flanges appear to be in prelaunch condition while the one located at the left end of the trays lower flange appears slightly discolored. Note the dark brown stain on the LDEF structure adjacent to the edge of the black thermal cover. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays right flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque with many black dots of various sizes that appear to be impact or penetration craters. A large impact crater is clearly visible in the lower right quadrant of the thermal cover. Many of the craters appear to be encircled by a white halo. Numerous circular white discolorations that appear to be impact points are visible on the covers surface. The cover appears to be stretched more than in the prelaunch photograph and the locations of Velcro attach pads are apparent. The ground strap appears to be in place with no visible damage but appears to be a darker color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-612.01.jpeg Classification==Postflight Photo, LaRC #==L92-17792 Photo, JSC #==None Photo, KSC #==KSC-390C-612.01 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in the Orbiter Processing Facility (OPF) at KSC during removal of the LDEF from the Orbiters cargo bay. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque (glossy white) with many black dots of various sizes that appear to be impact craters. An impact crater with a large area of discoloration is clearly visible in the upper right quadrant of the thermal cover. The dark discoloration is probably the results of an impact penetration of the 5 mil Teflon film allowing atomic oxygen to oxidize and erode the vapor deposited silver layer beneath. White dots of varying sizes can be seen on the cover, many appear to be encircling impact craters. The cover is not stretched as taut as in the flight photograph and locations of Velcro attach pads are not as prominent. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-372.09.jpeg Classification==Prelaunch Photo, LaRC #==L84-07214 Photo, JSC #==None Photo, KSC #==KSC-384C-372.09 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. The silvered Teflon thermal cover is specular and the Velcro cover attach pad locations are faintly visible. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-107.jpeg Classification==Flight Photo, LaRC #==L90-10401 Photo, JSC #==S32-76-107 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp block of the experiment trays lower flange appears to be discolored by a dark brown stain. The tray flanges also appear to be discolored but with a lighter stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with no apparent damage but is stretched more taut than in the prelaunch photograph. The glossy black appearance of the thermal cover is apparently due to lighting conditions and not a change in the material optical properties. The bright spots on the dark thermal cover background are areas where Velcro pads are bonded to the back- side of the cover. The scalloped edge effect across the top, bottom and left side of the cover occurs between attach points. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: B05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-331.11.jpeg Classification==Prelaunch Photo, LaRC #==L89-04403 Photo, JSC #==None Photo, KSC #==KSC-384C-331.11 Photo, PI #==No value in DB Photo, Date Taken==01/24/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: B05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.08.jpeg Classification==Postflight Photo, LaRC #==L90-13453 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.08 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The paint dots on the experiment tray clamp blocks, originally white, appears to be discolored by a brown stain. The experiment tray flanges also appear to be coated but with a lighter colored stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage. The cover appears less taut than in the flight photograph and the locations of Velcro attach pads are not as prominent. The scallop effect around the cover edges occurs between the cover attach points and shows the upper edge of the support frame. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: B05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-101.jpeg Classification==Flight Photo, LaRC #==L90-10399 Photo, JSC #==S32-76-101 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays left flange and lower flange appear to be slightly discolored but the paint dot on the clamp block located at the right end of the upper flange appears to be stained less. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with no apparent damage but is stretched more taut than in the prelaunch photograph. The dark blue appearance of the thermal cover in this photograph is apparently due to lighting conditions and not a change in the material optical properties. The oblong indentations on the dark thermal cover background are areas where Velcro pads are bonded to the backside of the cover. The thermal covers surface appears to have small brown circular discolorations of various sizes that appear to be impact craters. An impact crater surrounded by a large light blue area of discoloration is clearly visible in the lower right quadrant of the thermal cover. The discoloration is probably the results of an impact crater penetrating the 5 mil Teflon film and upsetting the vapor deposited silver layer beneath. The scalloped edge effect along the left side of the thermal cover occurs between attach points. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color than in the prelaunch photograph. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: B07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-59.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07037 Photo, JSC #==None Photo, KSC #==KSC-384C-59.11 Photo, PI #==No value in DB Photo, Date Taken==01/17/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: B07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2306.09.jpeg Classification==Postflight Photo, LaRC #==L91-08035 Photo, JSC #==None Photo, KSC #==KSC-390C-2306.09 Photo, PI #==No value in DB Photo, Date Taken==03/26/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The outline of the experiment tray clamp blocks is clearly visible on the upper tray flange and to a lesser extent on the lower flange. The holding fixture hardware covers the clamp block areas on the end flanges. The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque with black dots of various sizes that appear to be impact craters. An impact crater with a large area of white discoloration is clearly visible in the upper left quadrant of the thermal cover. The discoloration is probably the results of an impact penetration of the 5 mil Teflon film affecting the vapor deposited silver layer beneath. Many dots, black or brown in color and of varying sizes, can be seen on the cover. The cover is not stretched as taut as in the flight photograph and locations of Velcro attach pads are not as prominent. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color than in the prelaunch photograph. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: B07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-256.04.jpeg Classification==Prelaunch Photo, LaRC #==L89-04393 Photo, JSC #==None Photo, KSC #==KSC-384C-256.04 Photo, PI #==No value in DB Photo, Date Taken==01/18/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1467.02.jpeg Classification==Postflight Photo, LaRC #==L91-08928 Photo, JSC #==None Photo, KSC #==KSC-390C-1467.02 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The experiment tray flanges appear discolored by a brown stain that provides outlines of the experiment tray clamp blocks that are clearly visible on the upper and lower tray flanges.The experiment tray holding fixture hardware covers the clamp block areas on the end flanges. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage. The cover appears less taut than in the flight photograph and the locations of Velcro attach pads are less prominent. The greenish colors on the left one third of the thermal cover are reflections from the surroundings. The scallop effect around the cover edges occurs between the cover attach points and shows the upper edge of the support frame. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color than in the prelaunch photograph.. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-003.jpeg Classification==Flight Photo, LaRC #==L90-10347 Photo, JSC #==S32-75-003 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays right flange and lower flange appear to be slightly discolored. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with no apparent damage but is stretched more taut than in the prelaunch photograph. The pink washed out area in the right side of the photograph appears to be from light reflected on to the camera lens by the aft window of the Orbiter.The glossy black and white appearance of the thermal cover in this photograph is apparently due to lighting conditions and not a change in the material optical properties. The bright spots that appear to be indentations in the thermal cover surface are locations where Velcro pads are bonded to the backside of the cover. The scalloped edge effect along the right and left side of the thermal cover occurs between attach points. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-332.08.jpeg Classification==Prelaunch Photo, LaRC #==L89-04406 Photo, JSC #==None Photo, KSC #==KSC-384C-332.08 Photo, PI #==No value in DB Photo, Date Taken==01/24/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1467.08.jpeg Classification==Postflight Photo, LaRC #==L91-09805 Photo, JSC #==None Photo, KSC #==KSC-390C-1467.08 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The experiment tray flanges appear discolored by a light brown stain. Outlines of experiment tray clamp blocks are clearly visible on the lower tray flanges.The experiment tray holding fixture hardware covers the clamp block areas on the end flanges. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage. The greenish colors on the left one third of the thermal cover are reflections from the surroundings. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color than in the prelaunch photograph.. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Flight Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==No value in DB Photo, Description== The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. NO PHOTO AVAILABLE Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==N. A. Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1543.09.jpeg Classification==Postflight Photo, LaRC #==L91-08886 Photo, JSC #==None Photo, KSC #==KSC-390C-1543.09 Photo, PI #==No value in DB Photo, Date Taken==03/02/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The experiment tray flanges appear discolored by a brown stain. Outlines of experiment tray clamp blocks are clearly visible on the upper and lower experiment tray flanges.The experiment tray holding fixture hardware covers the clamp block areas on the end flanges. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque (glossy white) with many black dots of various sizes that appear to be impact craters. Many of the craters appear to have a black center encircled by a brown halo and then by a white halo. Other white circular discolorations also appear on the cover surface. The darker discolorations are probably the results of an craters penetrating the 5 mil Teflon film allowing atomic oxygen to oxidize and/or erode the vapor deposited silver layer beneath. An item of interest is the impact crater in the lower right corner of the cover that has a spray pattern originating from the point of impact. The cover is not stretched as taut as in the flight photograph and locations of Velcro attach pads are not as prominent. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-372.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07208 Photo, JSC #==None Photo, KSC #==KSC-384C-372.03 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-008.jpeg Classification==Flight Photo, LaRC #==L90-10376 Photo, JSC #==S32-76-008 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp block of the experiment trays upper flange and the right end of the experiment trays lower flange appear to be slightly discolored. The tray flanges appear to be discolored by a light brown stain and the ground strap located in the center of the lower flange appears intact but a much darker copper color than in the prelaunch photograph. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque (glossy white) marked with many black dots of various sizes that appear to be impact craters. Many of the craters appear to have a black center encircled by a brown halo. The cover appears to be stretched more than in the prelaunch photograph with the locations of Velcro attach pads showing as oblong indentations in the thermal cover. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2109.09.jpeg Classification==Postflight Photo, LaRC #==L91-09372 Photo, JSC #==None Photo, KSC #==KSC-390C-2109.09 Photo, PI #==No value in DB Photo, Date Taken==03/20/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The experiment tray flanges appear discolored by a light brown stain. Outlines of experiment tray clamp blocks are faint but visible on the upper and lower experiment tray flanges.The experiment tray holding fixture hardware covers the clamp block areas on the end flanges. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque with many black dots of various sizes that appear to be impact craters. Many of the craters appear to have a black center encircled by a brown halo and then by a white halo. Other white circular discolorations also appear on the cover surface. The darker discolorations probably result from an impact that penetrates the 5 mil Teflon film and allows atomic oxygen to oxidize and/or erode the vapor deposited silver layer beneath. The black feather shaped discoloration in the lower center of the thermal cover did not appear in the flight photograph and appears to be a particle from a degraded experiment that has attached itself to the cover. The cover is not stretched as taut as in the flight photograph and locations of Velcro attach pads are not as prominent. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-042.jpeg Classification==Flight Photo, LaRC #==L90-10434 Photo, JSC #==S32-78-042 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp block of the experiment trays left flange and on the clamp blocks located at the upper and lower ends of the experiment trays right flange appear to be in near prelaunch condition. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque with many impacts or penetrations of various sizes clearly visible. Two impacts appear larger and appear to have penetrated the Teflon cover. One is located at the right edge of the cover at about the vertical midpoint. The other penetration is near the lower edge of the cover about one third of the cover width from the lower left corner. The cover appears to be stretched more than in the prelaunch photograph and the locations of Velcro attach pads are apparent. The ground strap appears to be in place with no visible damage but appears to be a darker color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07168 Photo, JSC #==None Photo, KSC #==KSC-384C-317.11 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: C11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-373.04.jpeg Classification==Prelaunch Photo, LaRC #==L89-04407 Photo, JSC #==None Photo, KSC #==KSC-384C-373.04 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1066.09.jpeg Classification==Postflight Photo, LaRC #==L90-13478 Photo, JSC #==None Photo, KSC #==KSC-390C-1066.09 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The white paint dot on the experiment tray clamp block located at the center of the trays lower flange appears to be discolored by a brown stain. The experiment trays lower flange also appear to be coated but with a lighter colored stain. The white paint dots on clamp blocks at each end of the trays upper flange appear to be discolored very little. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears specular and intact with no visible damage. The bright irregular shaped discoloration located above the grounding strap and about one third of the height of the thermal cover from its bottom edge did not appear in the flight photograph and appears to be a piece of material from a degraded experiment that has attached itself to the cover. The cover has numerous white dots visible on its surface that may also be debris from other degraded experiments. The cover is less taut than in the flight photograph but locations of the Velcro attach pads are still easily detected. The scalloped effect around the thermal cover outer edges occurs between the cover attach points. The grounding strap in the center of the experiment tray lower flange appears to be a darker color than in the prelaunch photograph. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-042.jpeg Classification==Flight Photo, LaRC #==L90-10500 Photo, JSC #==S32-89-042 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dot , originally white, on the experiment tray clamp block located at the center of the trays lower flange appears to be discolored by a brown stain. The experiment trays lower flange also appears to be coated but with a much lighter stain. The paint dots on clamp blocks at each end of the trays upper flange appear to be discolored very little. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with no apparent damage but is stretched more taut than in the prelaunch photograph. The glossy blue appearance of the thermal cover in this photograph is apparently due to lighting conditions and not a change in the material optical properties. The white dots and circular indentations on the cover surface are probable impact locations. The oblong indentations in the thermal cover are indicative of where Velcro pads are bonded to the backside of the cover. The scalloped edge effect around the periphery of the thermal cover occurs between attach points. The ground strap appears to be in place with no visible damage however the color has darkened significantly. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-60.02.jpeg Classification==Prelaunch Photo, LaRC #==L84-07040 Photo, JSC #==None Photo, KSC #==KSC-384C-60.02 Photo, PI #==No value in DB Photo, Date Taken==01/17/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2277.10.jpeg Classification==Postflight Photo, LaRC #==L91-10204 Photo, JSC #==None Photo, KSC #==KSC-390C-2277.10 Photo, PI #==No value in DB Photo, Date Taken==03/23/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The experiment tray flanges appear discolored by a brown stain. Outlines of experiment tray clamp blocks are clearly visible on the upper and lower tray flanges. The experiment tray holding fixture hardware covers the clamp block areas on the end flanges. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears specular and intact with no apparent damage. A vertical strip of discoloration, approximately six inches wide and with a grain pattern, extends from top to bottom along the left side of the thermal cover. The cover appears less taut than in the flight photograph and locations of the Velcro attach pads are not as prominent. The ground strap appears to be in place with no visible damage, however, the color appears darked than in the prelaunch photograph. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-017.jpeg Classification==Flight Photo, LaRC #==L90-10456 Photo, JSC #==S32-82-017 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp block of the experiment trays upper flange and on the tray clamp blocks at each end of the trays lower flange appear to be discolored by a brown stain. The experiment tray flanges also appear to be discolored by the stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with no apparent damage but is stretched more taut than in the prelaunch photograph. The glossy blue-black appearance of the thermal cover in this photograph is apparently due to lighting conditions and not a change in the material optical properties. A vertical strip of discoloration, approximately six inches wide and with a grain pattern, extends from top to bottom along the right edge of the thermal cover. The oblong indentations in the thermal cover are in areas where Velcro pads are bonded to the backside of the cover. The irregular shaped discolorations on the cover surface appear to from lighting and reflections. The several white dots and the circular indents in the right center of the cover may be impact locations. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-050.jpeg Classification==Flight Photo, LaRC #==L90-10464 Photo, JSC #==S32-82-050 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dot on the center clamp block of the experiment trays upper flange appears to be in prelaunch condition but the paint dot on the clamp block located at the right end of the lower flange appears to be slightly discolored. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with no apparent damage and is taut. The blue appearance of the thermal cover in this photograph is apparently due to lighting conditions and not a change in the material optical properties. The oblong indentations in the thermal cover surface are areas where Velcro pads are bonded to the backside of the cover. The thermal covers surface appears to have small light blue circular discolorations of various sizes that appear to be points of impacts. The white irregular shapes in the photograph appear to be light reflections from the edges of indentations in the cover surface. The scalloped edge effect along the left side of the thermal cover occurs between attach points. The ground strap appears to be in place with no visible damage but appears to be a deeper copper color than in the prelaunch photograph. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1472.02.jpeg Classification==Postflight Photo, LaRC #==L91-10248 Photo, JSC #==None Photo, KSC #==KSC-390C-1472.02 Photo, PI #==No value in DB Photo, Date Taken==02/26/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC after removal of the experiment tray from the LDEF. The experiment tray flanges appear to be discolored by a light brown stain. An outline of experiment tray clamp block locations is clearly visible on the experiment trays upper flange and to a lesser extent on its lower flange. The holding fixture hardware covers the clamp block areas on the end flanges. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears specular with green and white discolorations associated with photo lights and reflections of the surrounding area. The black and/or brown dots of various sizes appear to be points of impact and penetration of the Teflon cover. The impact point discoloration is probably the results of a penetration in the 5 mil Teflon film that affected the vapor deposited silver and inconel layers beneath.. The cover is not as taut as in the flight photograph and locations of the Velcro attach pads are not as prominent. The ground strap appears to be intact with no visible damage but appears to be a darker copper color than in the prelaunch photograph. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-371.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07204 Photo, JSC #==None Photo, KSC #==KSC-384C-371.11 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: D07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-403.01.jpeg Classification==Prelaunch Photo, LaRC #==L89-04409 Photo, JSC #==None Photo, KSC #==KSC-384C-403.01 Photo, PI #==No value in DB Photo, Date Taken==01/27/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: E02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-018.jpeg Classification==Flight Photo, LaRC #==L90-10496 Photo, JSC #==S32-89-018 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays left flange and lower flange appear to be slightly discolored. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be intact with out visible damage but more taut than in the prelaunch photograph. The wrinkled spots on the thermal cover are over areas where Velcro pads are bonded to the backside of the cover. The waffle discoloration along the right edge appears to be from preflight processing and not from the space environment. The rippled effect around the cover edges occurs between the cover attach points. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: E02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1065.11.jpeg Classification==Postflight Photo, LaRC #==L90-13468 Photo, JSC #==None Photo, KSC #==KSC-390C-1065.11 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The white paint dot on the experiment tray clamp blocks located at the center of the trays lower and left flanges and at the right end of the trays upper flange appear to be discolored by a brown stain. The experiment tray flanges also appear to be coated but with a lighter colored stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage. It appears less taut than in the flight photograph. The uniformly located oval spots on the thermal cover are areas where Velcro pads attach the thermal cover to the support frame and appear more visible than in the prelaunch photograph. The scallop effect around the cover edges occurs between the cover attach points and shows the upper edge of the support frame. The ground strap appears to be in place with no visible damage but is a darker color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: E02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-083.jpeg Classification==Flight Photo, LaRC #==L90-10447 Photo, JSC #==S32-78-083 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays left flange and lower flange appear to be slightly discolored. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque with numerous black dots of various sizes that appear to be impact craters. Many of the craters appear to have a black center encircled by a brown halo. Other circular discolorations also appear on the cover surface. The darker discolorations probably result from an impact that penetrates the 5 mil Teflon film and allows atomic oxygen to oxidize and/or erode the vapor deposited silver layer beneath. The cover is taut and the locations of Velcro attach pads are prominent. The ground strap appears to be intact with no visible damage but appears to be a deeper copper color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: E10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-372.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07216 Photo, JSC #==None Photo, KSC #==KSC-384C-372.11 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: E10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-612.05.jpeg Classification==Postflight Photo, LaRC #==L92-17796 Photo, JSC #==None Photo, KSC #==KSC-390C-612.05 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The postflight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in the Orbiter Processing Facility during removal of the LDEF from the Orbiter's payload bay. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal covers surface appears to have changed from specular to opaque with numerous black dots of various sizes that appear to be impact craters. Many of the craters appear to have a black center encircled by a brown halo. Other circular discolorations also appear on the cover surface. The darker discolorations probably result from an impact that penetrates the 5 mil Teflon film and allows atomic oxygen to oxidize and/or erode the vapor deposited silver layer beneath. The cover is taut and the locations of Velcro attach pads are prominent. The pinkish green tint on the thermal cover is caused by the lighting and reflections from the surroundings.The ground strap appears to be intact with no visible damage but appears to be a deeper copper color. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: E10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-092.jpeg Classification==Flight Photo, LaRC #==L90-10422 Photo, JSC #==S32-77-092 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays right flange and lower flange appear to be slightly discolored. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with several circular damaged locations that appear to to be impact points and is more taut than in the prelaunch photograph. The wrinkled spots on the thermal cover are areas where Velcro pads are bonded to the backside of the cover. The scalloped effect around the cover edges occurs between the cover attach points. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: F04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-371.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07194 Photo, JSC #==None Photo, KSC #==KSC-384C-371.01 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The prelaunch photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken in SAEF II at KSC prior to installation of the experiment tray on the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each consisting of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the thermal cover and the LDEF structure. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: F04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-832.02.jpeg Classification==Postflight Photo, LaRC #==L90-13349 Photo, JSC #==None Photo, KSC #==KSC-390C-832.02 Photo, PI #==No value in DB Photo, Date Taken==02/07/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays lower flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact. The circular damaged locations that appeared to to be impact points in the flight photograph are not as apparent in the reflections and is less taut cover. The wrinkled spots on the thermal cover are areas where Velcro pads are bonded to the backside of the cover. The scalloped effect around the cover edges occurs between the cover attach points. The ground strap appears to be in place with no visible damage, but it appears darker. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: F04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1069.10.jpeg Classification==Postflight Photo, LaRC #==L90-13490 Photo, JSC #==None Photo, KSC #==KSC-390C-1069.10 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF. The Polymer Matrix Composite Materials experiment appears the same as in the flight photograph. The composite containing the aramid (Kevlar) fibers has changed from a yellow to a light brown color and the cylinderical tubes containing the boron and carbon fiber materials have changed from a light green tint to a brown color. The experiment mounting hardware and fasteners seem to be intact and in very good condition. Photo, Experiment(s) shown==AO180 : The Effect of Space Environment Exposure on the Properties of Polymer Matrix Composite Materials Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L / 18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-052.jpeg Classification==Flight Photo, LaRC #==L90-10502 Photo, JSC #==S32-89-052 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval. During the mission, the tray surface was at an angle of approximately ninety-eight (98) degrees to the orbital velocity vector and therefore exposed to a lower atomic oxygen flux than if parallel with the velocity vector. A very light stain is present on white paint dots on experiment tray clamps along the lower edge of the tray. The Polymer Matrix Composite Materials experiment has several changes to material colors. The composite containing the aramid (Kevlar) fibers has changed from a yellow to a light brown color and the cylindrical tubes containing the boron and carbon fiber materials have changed from a light green tint to a brown color. Photo, Experiment(s) shown==AO180 : The Effect of Space Environment Exposure on the Properties of Polymer Matrix Composite Materials Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L / 18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-221.11.jpeg Classification==Prelaunch Photo, LaRC #==L84-07093 Photo, JSC #==None Photo, KSC #==KSC-384C-221.11 Photo, PI #==No value in DB Photo, Date Taken==01/13/1984 Photo, Description== The prelaunch photograph shows the positions of the three (3) LDEF experiments in a three (3) inch deep tray. The AO023 experiment is located in the left one third (1/3rd) section, the AO180 experiment occupies the center one third (1/3rd) section plus the lower one half (1/2) of the right section and the AO019 experiment is shown in the top right section of the tray. The Polymer Matrix Composite Materials experiment is an active experiment that occupies one half (1/2) of the tray's exposed surface area and contains a data acquisition and recording system. The experiment consist of sixty-two (62) composite tubes with aluminum end fittings, forty-five (45) flat composite coupons with aluminum retainer blocks, and one (1) stainless steel calibration tube. The fasteners used to assemble the experiment were non-magnetic stainless steel. The test samples were manufactured from different epoxy matrix composites containing carbon, boron and aramide (Kevlar) reinforcements. A custom data acquisition system was designed to record and store the data from sixteen (16) thermal/strain gauges on a magnetic tape cassette. The data system and batteries to power the system are located beneath the aluminum base plates. Photo, Experiment(s) shown==AO180 : The Effect of Space Environment Exposure on the Properties of Polymer Matrix Composite Materials Associated Tray(s)==Tray Location: D12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L / 18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1764.10.jpeg Classification==Postflight Photo, LaRC #==L91-07553 Photo, JSC #==None Photo, KSC #==KSC-390C-1764.10 Photo, PI #==No value in DB Photo, Date Taken==03/09/1990 Photo, Description== The experiment is shown in the postflight configuration before closing the canisters with ground support equipment that bypassed the experiments onboard electronics circuitry. Three full panels and approximately 3/4th of the other panel are covered with gold foil (>99.99 percent pure). The remaining area on the fourth panel is covered with strips of other detector materials: zirconium, beryllium, titanium, platium, aluminum, carbon, Kapton, polyethylene and Teflon. A brown stain is visible on the experiment tray flanges, however, most of the stains observed in the flight photograph are obscured by reflected light. All materials remain intact with no visual evidence of damage to the experiment. The reflection of a video camera on a tripod and light sources can be seen on the gold foil covered panels. The experiment canisters are shown after being closed by using the experiments ground support equipment. The stain buildup can be clearly seen at the vertical center of the right tray flange. The clean area was located under the experiment tray clamp block and was not exposed to the staining medium. The stain also coats other areas that were exposed during the mission but are not as noticeable. The experiment hardware seems to be intact and have no damage. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-055.jpeg Classification==Flight Photo, LaRC #==L90-10414 Photo, JSC #==S32-77-055 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken with the LDEF on the Orbiter's RMS arm prior to berthing the spacecraft in the cargo bay. The canisters are in their open condition (they were expected to open about two (2) weeks after launch and close about eleven (11) months into the mission) with three (3) full panels and 3/4th of the fourth panel covered with a highly reflective gold foil (>99.99 percent pure).The remaining area is covered with strips of other detector materials: zirconium, beryllium, titanium, platium, aluminum, carbon, Kapton, polyethylene and Teflon. The exposed fasteners are non-magnetic stainless steel. All of the exposed materials seem to be secure and no damage is evident. The contamination stain that has changed the white paint dot on the tray clamp blocks to brown also coats the tray flanges and the aluminum canister hardware. The end support beam scuff plate in the photograph was a bright yellow prior to launch but is a much darker, mustard yellow after the space exposure. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-300.06.jpeg Classification==Prelaunch Photo, LaRC #==L84-07366 Photo, JSC #==None Photo, KSC #==KSC-384C-300.06 Photo, PI #==No value in DB Photo, Date Taken==01/20/1984 Photo, Description== The prelaunch photograph shows the two (2) clam shell type canisters in their closed position. The canister shells are made of aluminum sheet material with end caps of diecast aluminum. The baseplate and support structure are fabricated from 6000 series aluminum. Fasteners are non-magnetic stainless steel. The electrical box and the stainless steel tubing located on the baseplate protect the drive system wiring. The experiment contains a timing mechanism that provides the intelligence to open the canisters after the Orbiter has departed the area and any initial outgassing or offgassing has occurred. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-058.jpeg Classification==Flight Photo, LaRC #==L90-10438 Photo, JSC #==S32-78-058 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Chemistry of Micrometeoroid Experiment (CME) flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay and shows six (6) aluminum detector plates mounted in a three(3) inch deep LDEF peripheral experiment tray. The plates are unprotected and are exposed to the total mission environment, ground handling as well as flight. Non-magnetic stainless steel fasteners are used to attach the plates in the LDEF provided experiment tray. The experiment appears to be in good shape with all hardware intact. Impact craters, that appear as small white imperfections in the dark blue background, can be seen on all six (6) detector plates. The apparent dark blue color of the aluminum detector panels in this photograph is the result of the lighting, reflections on the panels and the camera angle. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1697.10.jpeg Classification==Postflight Photo, LaRC #==L91-07805 Photo, JSC #==None Photo, KSC #==KSC-390C-1697.10 Photo, PI #==No value in DB Photo, Date Taken==03/07/1990 Photo, Description== The Chemistry of Micrometeoroid Experiment (CME) postflight photograph was taken in SAEF II at KSC after the experiment was removed from the LDEF. The photograph shows six (6) aluminum detector plates mounted in a three(3) inch deep LDEF peripheral experiment tray. The plates are unprotected and are exposed to the total mission environment, ground handling as well as flight. Non-magnetic stainless steel fasteners are used to attach the plates in the LDEF provided experiment tray. Close inspection of the postflight photograph reveals tiny white spots on detector plates where space debris and/or micrometeroiod impacts have occurred during flight. The largest impact appears to have been on the plate in the lower left corner of the experiment tray. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-538.01.jpeg Classification==Prelaunch Photo, LaRC #==L89-04413 Photo, JSC #==None Photo, KSC #==KSC-384C-538.01 Photo, PI #==No value in DB Photo, Date Taken==01/30/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Chemistry of Micrometeoroid Experiment (CME) on the LDEF. The Chemistry of Micrometeoroid (CME) prelaunch photograph shows six (6) aluminum detector plates mounted in a three(3) inch deep LDEF peripheral experiment tray. The plates are unprotected and are exposed to the total mission environment, ground handling as well as flight. Nonmagnetic stainless steel fasteners are used to attach the plates in the LDEF provided experiment tray. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-144.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07057 Photo, JSC #==None Photo, KSC #==KSC-384C-144.08 Photo, PI #==No value in DB Photo, Date Taken==01/11/1984 Photo, Description== The prelaunch photograph provides a view of the three (3) experiments integrated into a six (6) inch deep LDEF experiment tray. The AO015 experiment is located in the left one third (1/3rd) section, the A0187-2 is located in the center one third (1/3rd) section and the EECC containing the M0006 experiment occupies the remaining section of the tray. The prelaunch photograph shows forty (40) experiment capture cells installed on two (2) support panels that are mounted in the center one third (1/3rd) of the LDEF provided experiment trays. A capture cell consist of four polished high purity germanium plates covered with a 2.5um thick Mylar foil coated with 1300 angstroms of tantalum, vapor deposited on the backside, and 100 angstroms of gold-palladium, vapor deposited on the front side. The capture cells are mounted within an aluminum frame on each panel. The fasteners are non-magnetic stainless steel. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-609.09.jpeg Classification==Postflight Photo, LaRC #==L92-17835 Photo, JSC #==None Photo, KSC #==KSC-390C-609.09 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The postflight photograph was taken in the Orbiter Processing Facility during the period when the LDEF was being transferred from the Orbiter cargo bay to the KSC Payload Transporter. The postflight photograph shows that experiment capture cells have been degraded by the space environment. This time the experiment, located on the trailing edge of the LDEF, was not exposed to the ram effects of the atomic oxygen, still only one (1) of the forty (40) capture cell metallized Mylar covers survived the total mission. The intact capture cell is located on the lower support panel and is in the center of the right hand row of cells. At other cell locations, pieces of the failed metallized Mylar capture cell cover, curled into a tight conical shape, are seen adhering to the edges of the aluminum mounting frame. The four (4) germanium plate outlines are visible at locations where the cell cover material failed. Non-magnetic stainless steel fasteners attach the aluminum frame to the support structure. The faint brown tint on the aluminum frame is the result of contamination buildup. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-029.jpeg Classification==Flight Photo, LaRC #==L90-10498 Photo, JSC #==S32-89-029 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm, seen along the left side of the photograph, and provides an on-orbit view of the C02 integrated tray. When comparing this photograph with the pre- launch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the experiment hardware within the tray. The experiment capture cells have been severely degraded by exposure to the space environment even though the experiment, located in tray C02 near the trailing edge of the LDEF, was not exposed to the ram effects of the atomic oxygen. Even with the poor lighting on the experiment, it seems that few, if any, of the forty (40) capture cell metallized Mylar covers survived the total mission. At many cell locations, pieces of the failed capture cell cover have curled into tight conical shaped needles and are seen attached to the edges of the aluminum mounting frame. Non-magnetic stainless steel fasteners, attaching the aluminum frame to the support structure, appear to be intact. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.40 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1839.02.jpeg Classification==Postflight Photo, LaRC #==L91-10443 Photo, JSC #==None Photo, KSC #==KSC-390C-1839.02 Photo, PI #==No value in DB Photo, Date Taken==03/12/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The postflight photograph shows that experiment capture cells have been degraded by the space environment. The experiment, located on the trailing edge of the LDEF, was not exposed to the ram effects of the atomic oxygen and eleven (11) of the seventy-seven (77) capture cell metallized Mylar covers survived the total mission. The metallized Mylar film of the failed capture cell cov- ers, curled into a tight conical shape, remains attached to the edges of the aluminum mounting frame. The four (4) germanium plates can be seen in locations where the cell cover material failed. The brown colored stain on the tray, the capture cell mounting and on the calorimeter mounting plates is a product of contamination. The darker stain is seen in areas where adhesive material, used in mounting the calorimeter, was not properly cleaned from the surface. The green tint on the right hand side if the experiment is a reflection of lights from an adjacent room. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: E03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4209.06.jpeg Classification==Prelaunch Photo, LaRC #==L84-07293 Photo, JSC #==None Photo, KSC #==KSC-383C-4209.06 Photo, PI #==No value in DB Photo, Date Taken==12/01/1984 Photo, Description== The prelaunch photograph provides a view of the two (2) experiments located in a six (6) inch LDEF experiment tray. The AO187-02 is located in the right two thirds (2/3rd) of the tray and the EECC containing the S1002 experiment occupies the remaining section. The tan colored strips on the tray flanges are protective coatings that are removed prior to tray testing. The prelaunch photograph shows seventy seven (77) capture cells attached to an aluminum honeycomb mounting plate. The capture cell is identical in construction to those used in the E08 tray location and consist of four highly polished germanium plates covered with a 2.5um thick Mylar foil with 1300 angstroms of tantalum vapor deposited on the backside and 100 angstroms of gold-palladium vapor deposited on the front side. The aluminum frame in this experiment location has four (4) calorimeters mounted along the left side and four (4) calorimeters along the right side of the capture cell frame. Two (2) calorimeters are shown mounted on sulfuric anodized aluminum mounting plates, one plate uses the space of a capture cell in the top center of the experiment panel and the second uses a similar space in the lower center of the panel. The two (2) capture cell spaces in the upper right section of the panel are used for electrical connection terminals which are protected by an aluminum cover. Reflections of both personnel and equipment can be seen in the metallic coated Mylar foil that covers the germanium detector plates. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: E03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-067.jpeg Classification==Flight Photo, LaRC #==L90-10417 Photo, JSC #==S32-77-067 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The capture cells of experiment AO187-02 are in the left two thirds. The Experiment Exposure Control Canister containing experiment S1002 is the item located in the right one third section of the tray. The experiment capture cells have been degraded by thier exposure to the space environment. The experiment was located on the trailing edge of the LDEF and was not exposed to the ram effects of the atomic oxygen; even so, only eleven (11) of the seventy-seven (77) capture cell metallized Mylar covers survived. Fragments of the failed capture cell covers, curled into tight conical shapes, are attached to edges of the aluminum mounting frame. The brown colored stain on the tray flanges, the capture cell mounting structure and on the calorimeter mounting plates is a product of material outgassing / contamination. The darker stain is thought to be in areas where adhesive material, used in mounting the calorimeter, was not properly cleaned from the surface. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: E03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-143.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07045 Photo, JSC #==None Photo, KSC #==KSC-384C-143.03 Photo, PI #==No value in DB Photo, Date Taken==01/11/1984 Photo, Description== The prelaunch photograph shows one hundred twenty (120) experiment capture cells installed on six support panels that are mounted in LDEF provided experiment trays. A capture cell consist of four polished high purity germanium plates covered with a 2.5um thick Mylar foil coated with 1300 angstroms of tantalum vapor deposited on the backside and 100 angstroms of gold-palladium vapor deposited on the front side. The capture cells are mounted within an aluminum frame on each panel. The fasteners are nonmagnetic stainless steel. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: E08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1767.02.jpeg Classification==Postflight Photo, LaRC #==L91-10614 Photo, JSC #==None Photo, KSC #==KSC-390C-1767.02 Photo, PI #==No value in DB Photo, Date Taken==03/09/1990 Photo, Description== This postflight photograph shows an experiment that has been severely degraded due to orbital exposure on the leading edge of the LDEF. The metallic coated thin Mylar film has been lost on each of the capture cells. As the thin Mylar film failed, the material curled tightly into small conical shapes and can be seen still attached to the aluminum mounting structure edges of many capture cells. Close examination of capture cells near the tray center clearly show the four individual high purity germanium plates with some of the bonding material exposed between plates. The green tint on the germanium plate at the right edge of the experiment tray is a reflection from the lights in the high bay area of SAEF II at KFC. Dim reflections from various sources can be seen on other sections of the experiment. Photo, Experiment(s) shown==AO187-02 : Chemical and Isotropic Measurements of Micrometeoroids by Secondary Ion Mass Spectrometry Associated Tray(s)==Tray Location: E08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-731.11.jpeg Classification==Postflight Photo, LaRC #==L92-17662 Photo, JSC #==None Photo, KSC #==KSC-390C-731.11 Photo, PI #==No value in DB Photo, Date Taken==02/01/1990 Photo, Description== The postflight photograph of the integrated tray (D02) was taken in the Operations and Checkout (O&C) building after the LDEF was transferred from the KSC Payload Canister to the LDEF Assembly and Transport System (LATS). This photograph of the QuartzCrystal Oscillator experiment, upper left corner, shows the effects of the space environment. The white paint has turned brown due to interaction of the LDEF generated outgassing and contamination products with the space environment. The stainless steel fasteners, the resonator shields, the resonator holddown cages and the aluminum mounting plate appear to have a similar brown tint. Photo, Experiment(s) shown==AO189 : Study of Factors Determining the Radiation Sensitivity of Quartz Crystal Oscillators Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==O & C Low Bay Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-013.jpeg Classification==Flight Photo, LaRC #==L90-10495 Photo, JSC #==S32-89-013 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken after the LDEF was retrieved and prior to berthing in the Orbiter cargo bay. The on-orbit photograph of the experiment, upper right corner, shows the paint stripes that were orginally white are now a brown or tan color. The brownish tint can also be seen on the fasteners, the resonator shields and the resonator holddown cages. These coloration changes are thought to be a caused by interaction of the LDEF generated outgassing and contamination products with the space environment. The scratches and abraisions on the aluminum mounting plate, that occurred during the fabrication and cleaning process, are more visible than in either the pre-flight or postflight D02 integrated tray photographs. The difference observed is probably due to the variation of exposure and intensity of the light source. Photo, Experiment(s) shown==AO189 : Study of Factors Determining the Radiation Sensitivity of Quartz Crystal Oscillators Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07158 Photo, JSC #==None Photo, KSC #==KSC-384C-317.01 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph shows the Quartz Crystal Oscillator experiment hardware, located in upper left corner of a three (3) inch tray, consisting of fourteen (14) 5-MHz fifth-overtone At-cut resonators, ten (10) unshielded holddown cages and four (4) radiation shields, mounted on a 1/6th tray aluminum mounting plate. Ten resonators, in glass cases, can be seen protuding thru the open top of the aluminum holddown cages. The four (4) remaining resonators are shielded from radiation and will be used as controls. The seven (7) diagonal white stripes, Chemglaze II A-276 white paint, provide the optical properties needed to meet experiment thermal requirements. All fasteners used for attaching the resonator cases to the mounting plate and the plate to the tray are non-magnetic stainless steel. Photo, Experiment(s) shown==AO189 : Study of Factors Determining the Radiation Sensitivity of Quartz Crystal Oscillators Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-026.jpeg Classification==Flight Photo, LaRC #==L90-10429 Photo, JSC #==S32-78-026 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph is covered by the shadow from the orbiter RMS arm and can not be readily compared with the prelaunch photograph. The surface area that can be observed does not seem to be significantly degraded. The white paint on the EPDS cover plate in the right end of the experiment tray does not have the brown discoloration seen on white paints at other locations on the LDEF. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: B12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1069.12.jpeg Classification==Postflight Photo, LaRC #==L90-13492 Photo, JSC #==None Photo, KSC #==KSC-390C-1069.12 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph shows little change of the exposed surfaces when compared with the prelaunch photograph. Although not noticable in the photograph, a light coating of contamination was seen on all experiment surfaces in this location. The difference in colors of the IDE detectors, located on the right hand mounting plate, is a result of the reflected surroundings and not related to space exposure. A close observation of the detector surfaces reveal that some damage has occured from meteroid and/or debris impacts. One impact crater can be seen, upper right quadrant, on the detector located in the sixth (6th) row down from the top and the fifth (5th) row from the right. Other impacts, smaller in size, show as small white dots on the detector surface. The solar sensor seems to have changed little, if any. However, the color of the solar array baseplate, showing indications of contamination, appears to be darker than the detector mounting plate. The center section cover plate shows little change when compared with the pre-launch photograph. However, during inspection, a light coat of the brown contamination has been observed on all surfaces. The color of the bonding material (RTV) used to secure several thin specimen, sapphire, to individual mounting plates has changed from pink to gold. At one location, that of a single specimen, the bonding material is more gray than gold in color. This has been attributed to the specimen being considerably thicker. The EPDS thermal cover in the right hand side of the tray shows a light coating of brown contamination on the Chemglaze II A-276 white paint. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: B12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-14.02.jpeg Classification==Prelaunch Photo, LaRC #==L84-07004 Photo, JSC #==None Photo, KSC #==KSC-384C-14.02 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the six (6) inch deep Interplanetary Dust Experiment (IDE) master control tray. The tray has three (3) mounting/cover plates elevated on fiberglass stand-offs to provide clearance and protection for hardware and electronics located underneath. The stand-offs also raise the plates to a level that minimizes shading of detectors by the tray sidewalls. The mounting plate located at the left hand end of the tray is populated with eighty (80) metaloxide-silicon (MOS) capacitor-type impact sensors and one (1) solar sensor that is located approximately in the center of the mounting plate. The IDE sensors are two (2) inch diameter MOS capacitor structures approximately 250 um thick. The detectors are formed by growing either 0.4um or 1.0um thick silicon oxide, SiO2, layer on the 250um thick, B-doped polished silicon wafer. The top metal contact, the visible surface, was formed by vapor deposition of 1000A of aluminum on the SiO2 surface. Aluminum was also vapor deposited on the backside to form the contact with the silicon substrate. Gold wires are bonded to the front and back aluminum layers for use in connecting the detectors to the circuits. The complete wafers, IDE detectors, are mounted on chromic anodized aluminum frames by bonding the detector backside to the aluminum frame with a space qualified RTV silicon adhesive, de-volatized RTV-511. The difference in colors of the detectors is caused by reflections in the metallized surfaces. A reflection of one of the technicians is visible in the three (3) rows of detector on the left hand side of the mounting plate. The solar sensor, located at the mounting plate center, consist of four (4) silicon solar cells connected in series and associated circuity bonded to an aluminum baseplate. The solar sensor registered each orbital sunrise independant of LDEF orientation at the time of sunrise. When IDE solar sensor data from the six (6) orthogonal faces of the LDEF was correlated, the Interplanetary Dust Experiment clock could be precisely calibrated. The center 1/3rd tray cover is a chromic anodized aluminum plate that protects the IDE data conditioning and control electronics mounted underneath. The cover plate also serves as a mounting platform for ten (10) individual specimen holders provided by one of the IDE investigators.The material specimen, consisting of germanium, sapphire and zinc sulfide of different sizes, shapes and colors, are bonded to the specimen holders with an RTV adhesive. The specimen holders are attached to the cover plate with stainless steel non-magnetic fasteners. The 1/3rd tray cover plate in the right hand end of the experiment tray is an aluminum plate painted white with Chemglaze II A-276 paint and used as a thermal cover for the Experiment Power and Data System (EPDS). The EPDS is a system provided by the LDEF Project Office that processes and stores, on magnetic tape, the orbital experiment and housekeeping data from six (6) experiment locations on the LDEF. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: B12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-065.jpeg Classification==Flight Photo, LaRC #==L90-10416 Photo, JSC #==S32-77-065 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C03 integrated tray. When comparing this photograph with the prelaunch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The Interplanetary Dust Experiment hardware, that is visible and not in shadow, appears to to have a thin brown film or stain on the exposed surfaces. A deeper brown stain, probably from the material under the small electrical cover plate on the detector frame, can be seen in the upper left corner of some of the detectors. The colors seen in the detectors mirror like surface is a reflection of the sky and clouds. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-15.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07015 Photo, JSC #==None Photo, KSC #==KSC-384C-15.01 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Intreplanetary Dust Experiment (IDE) is located in the right end of the integrated tray. The eighty (80) detectors, metal-oxide-silicon (MOS) capacitor-type impact sensors, bonded into anodized aluminum frames, are attached to the aluminum mounting with non-magnetic stainless steel fasteners. A solar sensor, four (4) silicon solar cells in series, on an aluminum baseplate is shown in the approximate center of the IDE mounting plate. The different colors seen on the detectors is the reflection of one of the LDEF technicians in the detectors metallic, mirror-like, surface. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1558.02.jpeg Classification==Postflight Photo, LaRC #==L91-09090 Photo, JSC #==None Photo, KSC #==KSC-390C-1558.02 Photo, PI #==No value in DB Photo, Date Taken==03/05/1990 Photo, Description== The IDE mounting plate and the detector frames are coated with a brown stain similiar to that seen on the other experiments in this and other trays located nearby. The stain seems to be slightly darker along the lower edge of the solar sensor mounting plate. The colors and designs seen on the detectors are reflections of the surrounding area. The thin brown film on the detectors metallic surface has resulted in a duller reflection of a technician, in the upper left, and other items. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: C03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-100.jpeg Classification==Flight Photo, LaRC #==L90-10451 Photo, JSC #==S32-78-100 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the C09 integrated tray. When comparing this photograph with the prelaunch photograph, very little difference can be seen. A brown stain is visible around some of the fasteners and on mounting plates. The stain has been attributed to outgassing and contamination from the LDEF and experiment related materials being flown. When compared to the prelaunch photograph, the C09 integrated tray seems to be in excellent condition. The Interplanetary Dust Experiment appears to have a thin brown stain around some of the fasteners and also a small rectangular stain, in the center, along the bottom edge of the detector mounting plate. The IDE seems to be in excellent condition with all hardware intact. The colors seen in the detectors is a reflection of the Orbiter's white cargo bay liner. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1030.09.jpeg Classification==Postflight Photo, LaRC #==L90-13407 Photo, JSC #==None Photo, KSC #==KSC-390C-1030.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken prior to the experiment tray being removed from the LDEF. The tray corner clamp blocks are un-anodized aluminum and that alone accounts for the major difference in color between the corner clamp blocks and the center clamp blocks. The IDE mounting plate and the detector frames and detectors seem to be in excellent condition. Close inspection of the photograph reveals several locations where impacts on detector surfaces are visible. A faint gold or tan stain can be seen around several of the fasteners and in a rectangular configuration, near the center, along the bottom edge of the detector mounting plate. Stains can also be seen near the top right edge of the solar sensor, on the mounting plate, and around the extreme edges of the solar sensor baseplate. The colors and designs seen on the detectors are reflections of the surrounding area. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-14.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07005 Photo, JSC #==None Photo, KSC #==KSC-384C-14.03 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows the location of four LDEF experiments integrated into a three (3) inch deep LDEF tray. The Interplanetary Dust Experiment (IDE) is located in the right end of the integrated tray. The eighty (80) detectors, metal-oxide-silicon (MOS) capacitor-type impact sensors, bonded into anodized aluminum frames, are attached to the aluminum mounting with non-magnetic stainless steel fasteners. A solar sensor, four (4) silicon solar cells in series, on an aluminum baseplate is shown in the approximate center of the IDE mounting plate. The different colors seen on the detectors is the reflection of stacks of LDEF experiment shipping containers in the detectors metallic, mirror-like, surface. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: C09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.10.jpeg Classification==Postflight Photo, LaRC #==L90-13440 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.10 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph, taken prior to removal of tthe experiment trays from the LDEF, again shows a significant difference in the color of the paint dots on the experiment tray clamp blocks. The direction and intensity of the artifical light source has caused hot spots and reflections that tend to wash-out the brown stain on the aluminum structure. The IDE experiment appears to be in excellent condition in the postflight photograph. All bond joints seem to have survived the space environment and the experiment hardware seems to be intact. A close inspection of individual detectors reveals locations where impacts have occurred and damage is present. The artifical light intensity and direction are such that the actual color variation across the experiment, top to bottom, is not visible. The darker stain around the edges of the solar cells is still visible but not as distinct as in the flight photograph. The blue color in the detectors metallic surface is caused by reflections of the surrounding area. The white stripe running diagonally across the top two (2) rows of detectors is the reflecton of a safety control rope placed around the LDEF transporter to restrict access to the LDEF spacecraft. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: D06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-15.10.jpeg Classification==Prelaunch Photo, LaRC #==L84-07024 Photo, JSC #==None Photo, KSC #==KSC-384C-15.10 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The prelaunch photograph shows two (2) LDEF experiments in an intregrated tray. The Space Debris experiment is passive and uses two thirds (2/3rd) of the exposed surface area. The IDE is an active experiment and is located in the other one third (1/3rd) of the tray. The Interplanetary Dust Experiment (IDE) is located in the right end of the integrated tray. The eighty (80) detectors, metal-oxide-silicon (MOS) capacitor-type impact sensors, bonded into anodized aluminum frames, are attached to the aluminum mounting with non-magnetic stainless steel fasteners. A solar sensor, four (4) silicon solar cells in series, on an aluminum baseplate is shown in the approximate center of the IDE mounting plate. The different colors seen on the detectors is the reflection of several of the LDEF technicians and a clean room work bench in the detectors metallic, mirror-like, surface. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: D06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-044.jpeg Classification==Flight Photo, LaRC #==L90-10455 Photo, JSC #==S32-82-044 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight / on-orbit photograph of the D06 integrated tray was taken from the Orbiter aft flight deck during the LDEF retrieval, while the spacecraft was attached to the remote manipulator system. During the mission, the tray surface was at an angle of approximately eighty-two (82) degrees to the orbital velocity vector and therefore exposed to a higher atomic oxygen flux than if it had been parallel with the velocity vector. Note the difference in color of the paint dots on tray clampblocks; white dots along the top edge, a light tan color on the center dot and a dark brown stain on the dots along the bottom of the photograph. The dots near the top of the photograph are adjacent to experiment location D07 and are exposed to a higher atomic oxygen flux than those adjacent to experiment location D05. Impacts of atomic oxygen with a surface tends to scrub away contamination from the that surface and leave it a much cleaner. The IDE experiment, located in the left side of the tray, seems to be coated with a thin coat of the brown contamination stain. The stain varies in color from a light tan at the top of the experiment to a darker color at the lower edge of the experiment baseplate. Darker smudges of the stain can be seen on the solar sensor baseplate where the solar cells have been bonded in place. The changes in colors seen in the detector surfaces, when compared to the prelaunch photograph, is due to the surroundings that are being reflected. The reflections seen in the flight photograph are from the sky in the lower rows of detectors and the orbiter's cargo bay liner in the upper rows of detectors. Close inspection of the detector surfaces reveals locations where partical impacts have occurred. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: D06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2068.08.jpeg Classification==Postflight Photo, LaRC #==L91-11688 Photo, JSC #==None Photo, KSC #==KSC-390C-2068.08 Photo, PI #==No value in DB Photo, Date Taken==03/19/1990 Photo, Description== The IDE experiment appears to be in excellent condition in the postflight photograph. All bond joints seem to have survived the space environment and the experiment hardware seems to be intact. The direction and intensity of the artificial light source has caused hot spots and reflections that tend to wash out the brown stain on the exposed surfaces. A close inspection of individual detectors reveal locations where impacts have occurred and damage is present. In the detector layout in the lower left corner of the tray, two detectors continue to show the discolorations observed in the flight photograph. A triangular shape can be seen in the detector located in the second horizontal row from the bottom and the second vertical row from the left. The other detector, located in the third horizontal row from the bottom and the fourth vertical row from the left has an irregular shaped, very faint, discolora tion. The blue color in the detectors metallic surface is caused by reflections of the surrounding area. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: G10 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-050.jpeg Classification==Flight Photo, LaRC #==L90-10387 Photo, JSC #==S32-76-050 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight/on-orbit photograph of the G10 experi ment tray was taken from the Orbiter aft flight deck during the LDEF retrieval. A light brown stain can be seen on the experiment tray flanges and to a lesser degree on the IDE Chemglaze Z tained their integrity. A light tan stain on the solar sensor base plate, located in the center of the tray, is more easily seen than that on the IDE mounting plate. Surface defects are highly visible due to the lighting conditions existing at the time the photograph was taken. The lighting angle is such that many impact craters can be seen. Two (2) detectors, located in the twenty (20) detector layout in the lower left corner of the tray, seem to have defects. A triangular shaped discoloration appears on the second detector from the left and in the second row from the bottom. Another irregular shaped discoloration can be seen on the fourth detector from the left and in the third row from the bottom. These discolorations appear to be due to material and/or fabrication defects and not reflected light. The blue colors on the detector's mirror like surface are caused by reflections of the LDEF surroundings. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: G10 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-8.06.jpeg Classification==Prelaunch Photo, LaRC #==L84-07001 Photo, JSC #==None Photo, KSC #==KSC-384C-8.06 Photo, PI #==No value in DB Photo, Date Taken==01/10/1984 Photo, Description== The prelaunch photograph shows the Inter planetary Dust Experiment (IDE) in a three (3) inch deep corner tray. The IDE is an active exper iment and is located on the earth facing end of the LDEF in the G10 location. AO201 - The Interplanetary Dust Experiment (IDE) is an active experiment consisting of impact detectors, detector frames, a solar sensor and the necessary mounting hardware. The eighty (80) detectors, metal-oxide-silicon (MOS) capacitor-type impact sensors, bonded into anodized alumi num frames, are attached to the aluminum mounting plate with non-magnetic stainless steel fas teners. A solar sensor, four (4) silicon solar cells in series mounted on an aluminum baseplate, is shown in the approximate center of the IDE mounting plate. The different colors seen on the detectors are the reflections of LDEF technicians and the surrounding clean room work area. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: G10 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-060.jpeg Classification==Flight Photo, LaRC #==L90-10366 Photo, JSC #==S32-75-060 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken during the LDEF retrieval and provides an on-orbit view of the H11 integrated tray. When comparing this photograph with the prelaunch photograph, the most noticeable change is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The white paint dots on the experiment tray clamp blocks now appear to be brown. The Interplanetary Dust Experiment hardware appears to have a thin brown film or stain on the exposed surfaces. A deeper brown stain, probably from the material underneath the small electrical cover plate of the detector frame, can be seen in the upper right corner of some of the detectors. Stain that is seen on the solar sensor base plate varies from a medium brown color in some areas to a faint tan near the top of the plate. The colors seen in the detector's mirror-like surface is a reflection of the sky and clouds. The dark spot on the detector in the third row from the top seems to be a flaw in the photograph since no damage was found in a postflight inspection. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-284.jpeg Classification==Postflight Photo, LaRC #==L92-21191 Photo, JSC #==S32-S-284 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center and provides a view of the H11 integrated tray. When comparing this photograph with the prelaunch photograph, the most noticeable change is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The paint dots located on the tray clamp blocks, previously white, are dark brown and dark smudges are seen on the lower thermal panel. The Interplanetary Dust Experiment hardware appears to be intact with no apparent damage. A thin film or stain of varying shades of brown appears to cover all exposed surface of the experiment. the stain on the solar sensor base plate varies from a medium brown color in some areas to a faint tan near the bottom of the plate. The colors seen in the detector's mirror-like surface is a reflection of the Orbiter's cargo bay liner. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-284.jpeg Classification==Postflight Photo, LaRC #==L92-21191 Photo, JSC #==S32-S-284 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center and provides a view of the H11 integrated tray. When comparing this photograph with the prelaunch photograph, the most noticeable change is the brown stain, attributed to outgassing and contamination, on the tray structure and most aluminum surfaces of experiments within the tray. The MAP experiment die-cast aluminum frames, fasteners, thermal isolation plate and polished aluminum stop plate seem to be moderately coated with the brown stain. The stain seems to be more concentrated in vicinities near adhesive bond joints. The detector bond joints and foil materials appear to be in-tact and have maintained their integrity in all four (4) stacks. A light brown stain and a dark smudge mark near the center are visible on the thermal isolator plate. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2065.07.jpeg Classification==Postflight Photo, LaRC #==L91-15678 Photo, JSC #==None Photo, KSC #==KSC-390C-2065.07 Photo, PI #==No value in DB Photo, Date Taken==03/19/1990 Photo, Description== The Interplanetary Dust Experiment hardware has a thin brown stain on the exposed surfaces. A deeper brown stain, probably from the material underneath the small electrical cover plate of the detector frame, can be seen in the upper right corner of some of the detectors. Stain that was seen on the solar sensor base plate in the flight photograph cannot be seen because of reflected light. The colors seen in the detector's mirror like surface are reflections of the surrounding area. A dark spot seen on a detector in the third row from the top in the flight photograph, was not found in a postflight inspection. A close inspection of this photograph does reveal several impact damage locations. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-8.04.jpeg Classification==Prelaunch Photo, LaRC #==L84-06997 Photo, JSC #==None Photo, KSC #==KSC-384C-8.04 Photo, PI #==No value in DB Photo, Date Taken==01/10/1984 Photo, Description== The prelaunch photograph shows the location of two (2) LDEF experiments integrated into a three (3) inch deep LDEF end corner tray. The Interplanetary Dust Experiment (IDE) is located in the left side of the integrated tray. The fifty-nine (59) detectors, metal-oxide-silicon (MOS) capacitor-type impact sensors, bonded into anodized aluminum frames, are attached to the aluminum mounting plate with non-magnetic stainless steel fasteners. A solar sensor, four (4) silicon solar cells wired in series, on an aluminum baseplate is shown in the left center of the IDE mounting plate. The different colors seen on the IDE detectors is the reflection of one of the LDEF technicians and the surrounding area in the detector's metallic, mirror-like, surface. Photo, Experiment(s) shown==AO201 : Interplanetary Dust Experiment Associated Tray(s)==Tray Location: H11 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-3383.02.jpeg Classification==Postflight Photo, LaRC #==L92-19010 Photo, JSC #==None Photo, KSC #==KSC-390C-3383.02 Photo, PI #==No value in DB Photo, Date Taken==04/18/1990 Photo, Description== The viscous magnetic damper housing is shown after removal from the interior of the LDEF. The spherical dome is fabricated from 1/32 inch thick 6061-T6 aluminum alloy sheet and is attached to the cylindrical base with aluminum screws. The cylindrical portion of the housing is a fiberglass (181 cloth / epon 828 resin) structure is covered with an aluminum tape, both inside and outside, to meet thermal control requirements. The mounting plate material is 6061-T6 aluminum alloy, with the top and bottom surfaces covered with aluminum tape. A thermistor is mounted in the top center of the dome to provide house keeping data. The lead wire, covered with a strip of aluminum tape, can be seen along the housing periphery. The assembled damper housing, with the damper inside, is mounted to the space end frame with stainless steel fasteners. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==29.90 in. dia. x 38.20 in. H Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-3383.07.jpeg Classification==Postflight Photo, LaRC #==L92-19015 Photo, JSC #==None Photo, KSC #==KSC-390C-3383.07 Photo, PI #==No value in DB Photo, Date Taken==04/18/1990 Photo, Description== The viscous magnetic damper housing is shown after removal of the thermistor and aluminum spherical dome. The cylindrical portion of the housing is a fiberglass (181 cloth / epon 828 resin) structure covered with an aluminum tape, both inside and outside, to meet thermal control requirements. The viscous magnetic damper covered with a gold colored coating is shown, with mounting bolts removed, resting on a support and positioning structure. The structureis assembled using phenolic rolled tubing with 6061-T6 aluminum end fittings bonded in place with an epoxy adhesive. The support structure terminates at brackets on a base plate material of 1/4 inch thick fiberglass (181 cloth / epon 828 resin), with the top and bottom surfaces covered with aluminum tape. The venting system consist of a non-magnetic stainless steel mesh screen and an aluminum baffle plate. All fasteners use in the assembly are either aluminum screws and bolts or non-magnetic stainless steel nut plates. The portions of gold coating missing from the upper section of the damper shell were missing at prelaunch inspection and did not result from the mission environment or postflight handling. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==29.90 in. dia. housing Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-073.jpeg Classification==Flight Photo, LaRC #==L90-10443 Photo, JSC #==S32-78-073 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Passive Grapple Tray flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The tray assembly consists of a modified six (6) inch deep LDEF peripheral experiment tray, a chromic anodized aluminum mounting plate with chamfered corners, an initiate switch assembly, an initiate system status indicator assembly, non-magnetic stainless steel fasteners and a Modified Mechanical Grapple Fixture, provided by JSC, with a camera target attached. The camera target, black with white markings, is attached to the right edge of the grapple fixture to assist the operator in positioning the RMS end effector during retrieval operations. The opening in the upper left corner of the mounting plate provides access to the initiate system activation connectors and is covered by an aluminum plate prior to installing the LDEF in the Orbiter cargo bay. The black square in the right center of the mounting plate, adjacent to the camera target, is the initiate system status indicator assembly. The grapple tray assembly appears to be intact with no apparent physical damage. The white paint dots on the clamp block located at the center of the trays left flange and at each end of the trays right flange have changed to a dark gray. The tray flanges appear to be discolored by a light brown stain. The chromic anodized aluminum grapple fixture mounting plate appear to be discolored by a light tan stain. The, as received aluminum, cover plate located in the trays lower left corner has a number of irregular shaped stains around the outer edges that appear to be finger prints. No change to the white paint on the grapple fixture camera target is apparent. The scratch marks on the upper right corner of the mounting plate were observed in the prelaunch photograph. The arc shaped discoloration in the upper left section of the tray does not appear on the postflight photos. The dark gray circular discolorations on the outer section of the grapple fixture appear to be the locations of impact craters where the surrounding surface coating has been disturbed. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==33.00 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4418.06.jpeg Classification==Prelaunch Photo, LaRC #==L84-07314 Photo, JSC #==None Photo, KSC #==KSC-383C-4418.06 Photo, PI #==No value in DB Photo, Date Taken==12/08/1983 Photo, Description== The prelaunch photograph of The Active Grapple Tray was taken in SAEF II at KSC after the tray was installed on the LDEF. The tray assembly consists of a modified six (6) inch deep LDEF peripheral experiment tray, a chromic anodized aluminum mounting plate with chamfered corners, an initiate switch assembly, an initiate system status indicator assembly, non-magnetic stainless steel fasteners and a Modified Mechanical Grapple Fixture, provided by JSC, with a camera target attached. The camera target, black with white markings, is attached to the right edge of the grapple fixture to assist the operator in positioning the RMS end effector during retrieval operations. The opening in the upper left corner of the mounting plate provides access to the initiate system activation connectors and is covered by an aluminum plate prior to installing the LDEF in the Orbiter cargo bay. The black square in the right center of the mounting plate, adjacent to the camera target, is the initiate system status indicator assembly. Scratch marks from pre-assembly activities can be seen on the lower right corner and on the upper left corner, slightly below the access opening, of the grapple fixture mounting plate. Note the clean white painted dots on three of the eight experiment tray clamp blocks. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==33.00 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-612.03.jpeg Classification==Postflight Photo, LaRC #==L92-17794 Photo, JSC #==None Photo, KSC #==KSC-390C-612.03 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The Passive Grapple Tray postflight photograph was taken in the Orbiter Processing Facility (OPF) at KSC during the removal of LDEF from the Orbiter's cargo bay. The tray assembly consists of a modified six (6) inch deep LDEF peripheral experiment tray, a chromic anodized aluminum mounting plate with chamfered corners, an initiate switch assembly, an initiate system status indicator assembly, nonmagnetic stainless steel fasteners and a Modified Mechanical Grapple Fixture, provided by JSC, with a camera target attached. The camera target, black with white markings, is attached to the right edge of the grapple fixture to assist the operator in positioning the RMS end effector during retrieval operations. The opening in the upper left corner of the mounting plate provides access to the initiate system activation connectors and is covered by an aluminum plate prior to installing the LDEF in the Orbiter cargo bay. The black square in the right center of the mounting plate, adjacent to the camera target, is the initiate system status indicator assembly.The grapple tray assembly appears to be intact with no apparent physical damage. The chromic anodized aluminum grapple fixture mounting plate appears to be in prelaunch condition with only a very light tan discoloration. The, as received aluminum, cover plate located in the trays lower left corner has a number of irregular shaped darker discolorations around the outer edges that appear to be finger prints. No change to the white paint on the grapple fixture camera target is apparent. The scratch marks on the upper right corner of the mounting plate were observed in the prelaunch and flight photographs. The arc shaped discoloration in the upper left section of the tray, observed in the flight photograph, does not appear in the postflight photos. The dark gray circular discolorations on the outer section of the grapple fixture appear to be the locations of impact craters where the surrounding surface coating has been disturbed. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==33.00 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4418.04.jpeg Classification==Prelaunch Photo, LaRC #==L84-07312 Photo, JSC #==None Photo, KSC #==KSC-383C-4418.04 Photo, PI #==No value in DB Photo, Date Taken==12/08/1983 Photo, Description== The prelaunch photograph of The Passive Grapple Tray was taken in SAEF II at KSC after the tray was installed on the LDEF. The tray assembly consists of a modified six (6) inch deep LDEF peripheral experiment tray, a chromic anodized aluminum mounting plate, a Standard Mechanical Grapple Fixture, provided by JSC, and non-magnetic stainless steel fasteners. Two (2) aluminum plates, one in the upper left corner and one near the right center of the tray, cover access openings in the mounting plate. The black chevrons painted on the left half of the mounting plate are used for tray identification and the camera target, black with white markings, is attached to the right edge of the grapple fixture to assist the operator in positioning the RMS end effector during retrieval operations. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==33.00 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-609.08.jpeg Classification==Postflight Photo, LaRC #==L92-17834 Photo, JSC #==None Photo, KSC #==KSC-390C-609.08 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The Passive Grapple Tray postflight photograph was taken in the Orbiter Processing Facility (OPF) at KSC during the removal of LDEF from the Orbiter's cargo bay. The tray assembly consists of a modified six (6) inch deep LDEF peripheral experiment tray, a chromic anodized aluminum mounting plate, a Standard Mechanical Grapple Fixture, provided by JSC, and non-magnetic stainless steel fasteners. Two (2) aluminum plates, one in the upper left corner and one near the right center of the tray, cover access openings in the mounting plate. The black chevrons painted on the left half of the mounting plate are used for tray identification and the camera target, black with white markings, is attached to the right edge of the grapple fixture to assist the operator in positioning the RMS end effector during retrieval operations. The grapple tray assembly appears to be intact with no apparent physical damage. The white paint dot on clamp blocks located at the right and left ends of the lower tray flange has changed to a brown color and the tray upper sidewall and tray flanges have become discolored by a light brown stain. The chromic anodized aluminum mounting plate and the passive grapple fixture appear to be discolored by a light brown stain similar to that on the tray sidewall and flanges. The dark irregular shaped discoloration on the lower right corner of the grapple fixture mounting plate is an abrasion that existed preflight. The pinkish tint on the mounting plate is the by-product of the chromic anodizing process and is not attributed to exposure to the space environment. The white stripes on the black camera target and the white tip of the vertical rod located on the target have changed in color from white to brown. The light band along the right edge of the grapple fixture mounting plate is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==33.00 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-048.jpeg Classification==Flight Photo, LaRC #==L90-10501 Photo, JSC #==S32-89-048 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Passive Grapple Tray flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The tray assembly consists of a modified six (6) inch deep LDEF peripheral experiment tray, a chromic anodized aluminum mounting plate, a Standard Mechanical Grapple Fixture, provided by JSC, and non-magnetic stainless steel fasteners. Two (2) aluminum plates, one in the upper left corner and one near the right center of the tray, cover access openings in the mounting plate. The black chevrons painted on the left half of the mounting plate are used for tray identification and the camera target, black with white markings, is attached to the right edge of the grapple fixture to assist the operator in positioning the RMS end effecter during retrieval operations. The grapple tray assembly appears to be intact with no apparent physical damage. The white paint dot on the clamp block located at the center of the trays left flange has changed to an off-white color. The camera on the RMS End Effecter blocks out over half of the target attached to the top edge of the grapple fixture and the RMS wrist joint and its shadow partially block a view of the black chevrons. The chromic anodized aluminum mounting plate and the tray's upper and lower flanges appear to be discolored by a light tan stain. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==33.00 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2366.01.jpeg Classification==Postflight Photo, LaRC #==L92-17916 Photo, JSC #==None Photo, KSC #==KSC-390C-2366.01 Photo, PI #==No value in DB Photo, Date Taken==03/28/1990 Photo, Description== The LDEF structure is shown, from a front oblique angle, mounted on the LDEF Assembly and Transport System (LATS) in the SAEF II at the KSC after deintegration of experiments from the LDEF. The LDEF structure is a welded / bolted assembly fabricated from aluminum alloy 6061-T6 extrusions, forgings, tubing and plate materials and assembled with stainless steel fasteners. The eight (8) internal tubular diagonals between the center ring structure and the two end frames provide torsional stiffness to the structure. The passive grapple tray remains mounted in the LDEF C01 location. A thermal control panel, adjacent to the LDEF experiment A06 location, was removed prior to experiment deintegration in preparation for configuring the LDEF for rotation. A discoloration of the black chrome thermal control coating can be seen on the Earth end panel adjacent to the LDEF experiment A03 location. Discolorations are also visible on surfaces of the LDEF structure that were exposed during the mission. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. dia x 30 ft. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L83-02796.jpeg Classification==Prelaunch Photo, LaRC #==L83-02796 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/01/1983 Photo, Description== The LDEF structure is shown mounted on the LDEF Assembly and Transport System in Building 1250 at the Langley Research Center (LaRC), Hampton Virginia, during pre-ship wiring checks. The structure is a welded / bolted assembly fab- ricated from aluminum alloy 6061-T6 extrusions, forgings, tubing and plate materials and assembled with stainless steel fasteners. The eight (8) internal tubular diagonals between the center ring structure and the two end frames provide torsional stiffness to the structure. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. dia x 30 ft. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2366.06.jpeg Classification==Postflight Photo, LaRC #==L92-17921 Photo, JSC #==None Photo, KSC #==KSC-390C-2366.06 Photo, PI #==No value in DB Photo, Date Taken==03/28/1990 Photo, Description== The LDEF structure is shown, from a rear oblique angle, mounted on the LDEF Assembly and Transport System (LATS)in the SAEF II at the KSC after deintegration of experiments from the LDEF. The LDEF structure is a welded / bolted assembly fabricated from aluminum alloy 6061-T6 extrusions, forgings, tubing and plate materials and assembled with stainless steel fasteners. The eight (8) internal tubular diagonals between the center ring structure and the two end frames provides torsional stiffness to the structure. The passive grapple tray remains mounted in the LDEF C01 location. A thermal control panel, adjacent to the LDEF experiment F06 location, was removed prior to experiment deintegration in preparation for configuring the LDEF for rotation. A light brown discoloration can be seen on the anodized aluminum thermal control panels on the LDEF Space end. Discolorations are also visible on surfaces of the LDEF longeron and intercostal structures that were exposed during the mission. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. dia x 30 ft. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L90-1797.jpeg Classification==Postflight Photo, LaRC #==L90-01797 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==02/06/1990 Photo, Description== The postflight photograph was taken prior to the experiment being removed from the LDEF structure. The experiment's damaged multi-layer ther mal insulation blankets were removed from the experiment to accommodate experiment tray cover installation prior to operations that removed the experiment from the LDEF. The postflight photograph of the Heavy Ions in Space Experiment shows the four (4) experiment modules with the multi-layer thermal blankets severely degraded. The paint on the the thermal blankets top layer, previously white, is now a glossy tan or soft brown color. This change in color, from white to tan, was seen on other LDEF experiment surfaces that were coated with the same paint. The tape used to attach the thermal blanket to the module frames, 3M Y966 with a silvered Teflon film backing, failed during flight. The tape failed in tension across the width of the tape leaving portions of the tape on both the frame and the top layer of the thermal blanket. The tape failure is attributed to shrinkage of the thermal blanket which caused a significant buildup in tension across the taped joint. Detachment of the blankets along two (2) sides relieved the tension buildup and the blanket remained in place, although curled, during retrieval and post retrieval operations. The material exposed underneath the curled thermal blanket is the top sheet of the Lexan detector stack. The degraded multi-layer thermal blankets in each of the four modules show details of the blanket construction. The top layer of the thermal blanket is a 5 mil Kapton film with an aluminum coat ing vapor deposited on one side and with an exterior overcoat of Chemglaze II A-276 white paint on the other. The core or center section of the thermal blanket is constructed of approximately twenty two (22) layers of 1/4 mil perforated Mylar film with an aluminum coating vapor depos ited on each side. The bottom layer of the thermal blanket is also a 5 mil Kapton film with an alu minum coating vapor deposited on one side. The aluminum coated side of the Kapton film faces the adjacent Lexan detector stack sheet. A Dacron mesh (bridal veil) separator, clearly visible in the upper right module, is placed between each aluminized Mylar layer of the core material and also between the core material and the alu minized Kapton film used for the top and bottom covers. Insertion of the Dacron mesh between the aluminized layers minimizes heat leaks within the thermal blanket. A close observation of the exposed edges of the Multi-layer blankets shows the vapor deposited aluminum coating has delaminated from from the Mylar film and the Mylar film has eroded. The delaminated aluminum can be seen extending from the blanket material in the lower right module. Small pieces of aluminum have been observed adhered to surfaces of the LDEF, to the surfaces of some LDEF experiments and in the orbiter cargo bay during post-flight inspections. Also note the loss of portions of the Dacron mesh material. The loss of the Dacron material and some of the alu minum delamination is thought to have occurred prior to retrieval, however, a significant portion of the aluminum delamination from the Mylar is thought to have occurred post-landing due to the velocity and direction of air from the cargo bay purge system. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H03 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-043.jpeg Classification==Flight Photo, LaRC #==L90-10356 Photo, JSC #==S32-75-043 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Heavy Ions in Space Experiment was taken from the Orbiter's aft flight deck during LDEF retrieval operations. A light tan stain can be seen on the LDEF end structure along the left edge of the experiment tray flange. Lighter stains are also visible on the tray flange between the top and the center tray clamp blocks on that side. The photograph shows four (4) experiment modules mounted in the LDEF provided end center experiment tray. An experiment module consist of the thermal cover, a top stack of Lexan sheets for detecting low-energy ions, a honeycomb pressure cover and the main stack of CR-39 used to detect cosmic rays mounted in an aluminum housing. The four modules are identical in materials and construction. The exposed surface of each module is a white paint overcoat, Chemglaze II A 276, that has been applied to the top layer, aluminized Kapton, of a multi-layer thermal blanket. The frame around each of the four modules, a Z shaped aluminum structure, is covered with a sil verized Teflon film secured with 3M Y966 acrylic transfer tape. The 3M Y966 transfer tape on a siliverized Teflon film is also used to attach the four edges of the multi-layer thermal blankets to the modules frame. The combination of the silverized Teflon and the white paint provides the appropriate optical properities needed to meet experiment thermal requirements. The multi-layer thermal insulation blanket has extensive damage. The tape joints have failed along two (2) sides of each experiment module and have allowed the multi-layer insulation blan ket to curled back over its self. The golden colored surfaces that have been exposed are the top sheet of the experiment's Lexan detector stacks that are held securely in place by the Z shaped alu minum structure. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H03 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-278.jpeg Classification==Postflight Photo, LaRC #==L92-21185 Photo, JSC #==S32-S-278 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph of the Heavy Ions in Space Experiment was taken from the Orbiter's cargo bay access hatch during post landing opera tions to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. The photograph shows extensive damage to the multi-layer thermal insulation blanket. The tape joints appear to have failed along two (2) sides of each experiment module and allowed the multi layer thermal insulation blanket to curled back over its self. The golden colored surfaces that have been exposed are the top sheet of the experiment's Lexan detector stacks that are held securely in place by the Z shaped aluminum structure. A light tan stain can be seen on the LDEF end structure along the upper edge of the experiment tray flange. Lighter stains that appear to be finger prints are also visible on the trays top flange. The paint on the top layer of the thermal blankets, origi nally white, now appears brown or light tan. The fragments of aluminum in the lower two quad rants appear to be the results of delamination of the vapor deposited aluminum from the thin aluminized Mylar thermal film. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H03 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-331.06.jpeg Classification==Prelaunch Photo, LaRC #==L84-07187 Photo, JSC #==None Photo, KSC #==KSC-384C-331.06 Photo, PI #==No value in DB Photo, Date Taken==01/24/1984 Photo, Description== The prelaunch photograph of the Heavy Ions in Space Experiment was taken in SAEF II at KSC prior to installation of the Heavy Ions in Space Experiment on the LDEF. The photograph shows four (4) experiment modules mounted in the LDEF provided end center experiment tray. An experiment module consist of the thermal cover, a top stack of Lexan sheets for detecting low-energy ions, a honeycomb pressure cover and the main stack of CR-39 used to detect cosmic rays mounted in an aluminum housing. Three modules are identical while the fourth module has been divided into four smaller units that allows the use of pressure covers with a lower energy threshold to Ion penetration. The exposed surface of each module is a white paint overcoat, Chemglaze II A-276, that has been applied to the top layer, aluminized kapton, of a multilayer thermal blanket. The frame around each of the four modules, a Z shaped aluminum structure, is covered with a silverized Teflon film secured with 3M Y966 acrylic transfer tape. The 3M Y966 tape on a silverized Teflon film is also used to attach the multi-layer thermal insulation blankets to the modules frame. The combination of the silverized Teflon and the white paint provides the appropriate optical properities needed to meet experiment thermal requirements. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H12 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L90-1796.jpeg Classification==Postflight Photo, LaRC #==L90-01796 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==02/06/1990 Photo, Description== The postflight photograph of the Heavy Ions in Space Experiment was taken prior to the experiment being removed from the LDEF structure. The experiment's damaged multi-layer thermal insulation blankets were removed from the exper- iment, so the experiment tray cover could be installed, prior to removing the experiment from the LDEF The Postflight photograph shows the four (4) experiment modules with multilayer thermal blankets that are severely degraded. Paint on the top layer, previously white, is now a glossy soft brown or tan color. The thermal blankets apparently shrunk in flight causing them to detach from the modules frame along two sides, thereby relieving the tension buildup. The tape used to attach the blanket to the structure failed in tension across the width of the tape leaving portions of the tape on both the frame and the top layer of the thermal blanket. The thermal blankets on the three (3) large modules have curled to expose the top Lexan layer of the detector stack beneath. The curled thermal blankets that protected the four (4) smaller modules now exposes the 5 mil aluminized Kapton pressure covers beneath. The damaged thermal blankets shown in the two (2) tray quadrants on the right side of the photograph reveal representative cross sections of the multilayer thermal blankets. The thermal blankets top layer is a 5 mil aluminized Kapton film with an exterior overcoat of Chemglaze II A-276 white paint. The blanket core, center section of the blanket, is constructed of approximately twenty two (22) layers of 1/4 mil perforated Mylar film with aluminum vapor deposited on each side. A Dacron mesh separator, clearly seen in the lower right quadrant, is placed between each aluminized Mylar layer of the core material and also between the core material and the aluminized Kapton film used for the thermal blanket top and bottom covers. Insertion of the Dacron mesh between the aluminized layers minimizes heat leaks within the thermal blanket. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H12 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-283.jpeg Classification==Postflight Photo, LaRC #==L92-21190 Photo, JSC #==S32-S-283 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph of the Heavy Ions in Space Experiment was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. The photograph shows the extensive damage to the experiment's multi-layer thermal blankets that occurred during the LDEF mission. It appears that siliverized Teflon tape backed with an acrylic transfer tape that was used to attach the thermal blankets to the structure failed in tension. When the bond joint released along two (2) sides, the tension was relieved and the remaining tape continued to hold the blanket to the structure through out the rest mission. The outside blanket surfaces that were originally painted white are now coated with a glossy dark brown stain. The golden colored material in the three (3) full modules are the top sheets of lexan detector stacks held in place by the aluminum Z shaped structure. The deep rich redish-brown colored sections visible in one half (1/2) of the upper left module is also the top layer of detector sheets underneath support straps. In the two lower quadrants, the aluminum coatings that were vapor deposited on thin Mylar sheets of thermal blanket material appear to be starting to delaminate from the Mylar. A light coating of brown stain can be seen on the trays right flange. The stain appears heavier in the vicinity of nutplates used to attach the protective tray cover.Smudge marks that appear to be fingerprints can be seen along the edge of the thermal panel to the right of the experiment tray. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H12 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-008.jpeg Classification==Flight Photo, LaRC #==L90-10494 Photo, JSC #==S32-89-008 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. The Trapped Proton Energy Spectrum Determination Experiment consist of three (3) experi- ment modules located in three (3) inch deep LDEF integrated trays. Additional Trapped Proton Energy Experiment modules are located in a peripheral LDEF integrated experiment tray in the D09 location and in an end center integrated tray in the G12 tray location. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, consist of a primary experiment and two (2) secondary experiments mounted on an aluminum mounting plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum support structure, configured to provide the desired exposure for the detector stacks. The secondary experiments are the Neutron and Proton Activation experiment that exposes metal samples to the ambient flux throughout the mission, and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the aluminum honeycomb mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint. The identification plate in the left center of the experiment module identifies the experiment location and orientation in the experiment tray. The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. The Trapped Proton Energy experiment appears to be intact with with no apparent damage. A light tan discoloration is visible on the Trapped Proton Energy experiment detector housings and on the surfaces of the experiment support structure. The discoloration around the outer edges of the experiments honeycomb mounting plate and around vent holes in the honeycomb appears to be a darker tan color. The sub-experiments are intact and secure with no visible damage, however, colors have changed from light gray to black. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: D03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==16.50 in. W x 18.75 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-210.04.jpeg Classification==Prelaunch Photo, LaRC #==L89-04385 Photo, JSC #==None Photo, KSC #==KSC-384C-210.04 Photo, PI #==No value in DB Photo, Date Taken==01/16/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Trapped Proton Energy Spectrum Determination Experiment consist of three (3) experiment modules located in three (3) inch deep LDEF integrated trays. Additional Trapped Proton Energy Experiment modules are located in a peripheral LDEF integrated experiment tray in the D09 location and in an end center integrated tray in the G12 tray location. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, consist of a primary experiment and two (2) secondary experiments mounted on an aluminum mounting plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum support structure, configured to provide the desired exposure for the detector stacks. The secondary experiments are the Neutron and Proton Activation experiment that expose metal samples to the ambient flux throughout the mission and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint. The identification plate in the left center of the experiment mounting plate identifies the experiment location and orientation in the experiment tray. The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: D03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==16.50 in. W x 18.75 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1485.05.jpeg Classification==Postflight Photo, LaRC #==L91-09252 Photo, JSC #==None Photo, KSC #==KSC-390C-1485.05 Photo, PI #==No value in DB Photo, Date Taken==02/28/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Trapped Proton Energy Spectrum Determination Experiment consist of three (3) experiment modules located in three (3) inch deep LDEF integrated trays. Additional Trapped Proton Energy Experiment mod- ules are located in a peripheral LDEF integrated experiment tray in the D09 location and in an end center integrated tray in the G12 tray location. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, consist of a primary experiment and two (2) secondary experiments mounted on an aluminum honeycomb mounting plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum support structure, configured to provide the desired exposure for the detector stacks. The secondary experiments consist of the Neutron and Proton Activation experiment that exposes metal samples to the ambient flux throughout the mission and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the aluminum honeycomb mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint. The identification plate in the left center of the experiment module identifies the experiment location and orientation in the experiment tray. The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, appears to be intact with no apparent physical damage. The brown discoloration appears to be a little lighter in this photograph than in the flight photograph, however, the postflight photograph of the individual experiment verifies the darker discoloration in the flight photograph. The lighting angle and intensity appear to have washed out colors in the upper half of the integrated tray, even so, the darker areas around vent hole locations are still visible. The sub-experiments appear to be intact and secure. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: D03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==16.50 in. W x 18.75 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1529.03.jpeg Classification==Postflight Photo, LaRC #==L91-10336 Photo, JSC #==None Photo, KSC #==KSC-390C-1529.03 Photo, PI #==No value in DB Photo, Date Taken==02/27/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Trapped Proton Energy Spectrum Determination Experiment consist of three (3) experiment modules located in three (3) inch deep LDEF integrated trays. Additional Trapped Proton Energy Experiment mod- ules are located in a peripheral LDEF integrated experiment tray in the D03 location and in an end center integrated tray in the G12 tray location. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, consist of a primary experiment and two (2) secondary experiments mounted on an aluminum honeycomb mounting plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum support structure, configured to provide the desired exposure for the detector stacks. The secondary experiments consist of the Neutron and Proton Activation experiment that exposes metal samples to the ambient flux throughout the mission and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the aluminum honeycomb mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint. The identification plate in the left center of the experiment module identifies the experiment location and orientation in the experiment tray. The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, appears to be intact with no apparent physical damage. The brown discoloration appears lighter in this photograph than in the flight photograph, however, the postflight photograph of the individual experiment verifies the darker discoloration in the flight photograph. The lighting angle and intensity give the experiment a washed out appearance. Only those vent hole locations in the shadows are still visible. The secondary experiments appear to be intact and secure, however, the colors have changed from shades of tan in the prelaunch photos to a black. The reflection of a detector housing can be seen on the black secondary experiment samples. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: D09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.50 in. W x 18.75 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-093.jpeg Classification==Flight Photo, LaRC #==L90-10450 Photo, JSC #==S32-78-093 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. The Trapped Proton Energy Spectrum Determination Experiment consist of three (3) experi- ment modules located in three (3) inch deep LDEF integrated trays. Additional Trapped Proton Energy Experiment modules are located in a peripheral LDEF integrated experiment tray in the D03 location and in an end center integrated tray in the G12 tray location. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, consist of a primary experiment and two (2) secondary experiments mounted on an aluminum honeycomb mounting plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum support structure, configured to provide the desired exposure for the detector stacks. The secondary experiments are the Neutron and Proton Activation experiment that exposes metal samples to the ambient flux throughout the mission, and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the aluminum honeycomb mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint. The identification plate in the left center of the experiment module identifies the experiment location and orientation in the experiment tray. The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. The Trapped Proton Energy experiment appears to be intact with with no apparent damage. A brown discoloration is visible on the Trapped Proton Energy experiment detector housings and on the surfaces of the experiment support structure. Discolorations appear darker on the recessed portion of the mounting plate and on the two thick aluminum plates at the reinforced corners. The vent holes in the aluminum honeycomb face sheets are now visible and appear as brown dots. The secondary experiments are intact and secure with no visible damage, however, colors appear to have changed from shades of brown to shades of blue/gray. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: D09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.50 in. W x 18.75 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-8.02.jpeg Classification==Prelaunch Photo, LaRC #==L84-06999 Photo, JSC #==None Photo, KSC #==KSC-384C-8.02 Photo, PI #==No value in DB Photo, Date Taken==01/10/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Trapped Proton Energy Spectrum Determination Experiment consist of three (3) experiment modules located in three (3) inch deep LDEF integrated trays. Additional Trapped Proton Energy Experiment modules are located in a peripheral LDEF integrated experiment tray in the D03 location and in an end center integrated tray in the G12 tray location. The Trapped Proton Energy experiment, located in the lower right corner of the integrated tray, consist of a primary experiment and two (2) secondary experiments mounted on an aluminum mounting plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum support structure, configured to provide the desired exposure for the detector stacks. The secondary experiments are the Neutron and Proton Activation experiment that expose metal samples to the ambient flux throughout the mission and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint. The identification plate in the left center of the experiment mounting plate identifies the experiment location and orientation in the experiment tray. The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: D09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.50 in. W x 18.75 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-054.jpeg Classification==Flight Photo, LaRC #==L90-10388 Photo, JSC #==S32-76-054 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. The Trapped Proton Energy Spectrum Determination Experiment is one of four experiments located in a three (3) inch deep LDEF end center tray. Additional Trapped Proton Energy Experi ments are located in peripheral LDEF integrated experiment tray in the D03 and D09 tray loca tions. The Trapped Proton Energy experiment, located in the upper left quadrant of the integrated tray, appears to be intact with with no visible damage. A brown discoloration is visible on the Trapped Proton Energy experiment detector housings and along the upper surfaces of the experiment sup port structure. The discoloration around the outer edges of the experiment mounting plate appears to be a much lighter tan color. The sub-experiments are intact and secure with no visible dam age. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.25 in. W x 16.62 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1997.02.jpeg Classification==Postflight Photo, LaRC #==L91-11718 Photo, JSC #==None Photo, KSC #==KSC-390C-1997.02 Photo, PI #==No value in DB Photo, Date Taken==03/15/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Trapped Proton Energy Spectrum Determination Experiment is one of four experiments located in a three (3) inch deep LDEF end center tray. Additional Trapped Proton Energy Experiments are located in periph eral LDEF integrated experiment trays in the D03 and D09 tray locations. The Trapped Proton Energy experiment, located in the upper left quadrant of the integrated tray, appears to be intact with no apparent physical damage. The brown discoloration appears to be much lighter in this photograph than in the flight photograph, however, the postflight photograph of the individual experiment verifies the darker discoloration in the flight photograph. The light ing angle and intensity appear to have washed out the colors in the upper half of the integrated tray. The sub experiments appear to be intact and secure. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.25 in. W x 16.62 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07165 Photo, JSC #==None Photo, KSC #==KSC-384C-317.08 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Trapped Proton Energy Spectrum Determination Experiment is one of four (4) experiments located in a three (3) inch deep LDEF end center tray. Additional Trapped Proton Energy Experiments are located in peripheral LDEF integrated experiment trays in the D03 and D09 tray locations. The identifica tion plate on the lower right corner of the experiment mounting plate identifies the experiments location and orientation in the experiment tray. The Trapped Proton Energy experiment, located in the upper left quadrant of the integrated tray, consist of a primary experiment and three (3) sub experiments mounted on an aluminum mount ing plate. The primary experiment components include six (6) stacks of CR-39 passive detectors in individual aluminum housings and an aluminum mounting structure, configured to provide the desired exposure for the detector stacks. The secondary experiments consist of the Neutron and Proton Activation experiment that expose metal samples to the ambient flux throughout the mis sion, the Microsphere Dosimetry experiment housed in a cylindrical aluminum container and the Flux Measurement by Ion Trapping experiment consisting of a variety of sample materials that are exposed to the space environment for the total mission. The exterior surfaces of the mounting plate, the experiment housings and the support structure are coated with IITRI S13G-LO white paint.The experiment is assembled using non-magnetic stainless steel fasteners and safety wire. Photo, Experiment(s) shown==M0002-01 : Trapped-Proton Energy Spectrum Determination Associated Tray(s)==Tray Location: G12 - Orientation: Earth-facing end Photo, Scale==15.25 in. W x 16.62 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.10.jpeg Classification==Prelaunch Photo, LaRC #==L84-07068 Photo, JSC #==None Photo, KSC #==KSC-384C-193.10 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph shows the positions of four (4) LDEF experiments in a three (3) inch deep LDEF peripheral tray. The Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section, the Ion Beam Textured and Coated Surfaces (IBEX) Experiment (S1003) is shown in the top one half (1/2) of the right section, the Balloon Materials Degradation Experiment (S1006) is located in the center one third (1/3rd) section, and the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section of the tray. The Measurement of Heavy Cosmic-Ray Nuclei on LDEF experiment, located in the lower one half (1/2) of the right tray section, consist of an aluminum housing , a solid state track detector of CR-39 sheet material, a thin aluminized Mylar foil thermal shield and an aluminized Kapton foil cover. The aluminum housing, coated with alodine 1200, provides a container and structural support for the detector stack and a thermal interface with the LDEF structure. Non-magnetic stainless steel fasteners are used to assemble the experiment and to attach the experiment adapter plate to the tray structure. Note the reflections of personnel and furniture from the surrounding area on the Kapton cover and also the ripples in the cover sheet that tend to blur the images. Photo, Experiment(s) shown==M0002-02 : Measurement of Heavy Cosmic-Ray Nuclei on LDEF Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.09.jpeg Classification==Postflight Photo, LaRC #==L90-13439 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF and shows the positions of four (4) LDEF experiments mounted in a three (3) inch deep LDEF peripheral tray. The Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section, the Ion Beam Textured and Coated Surfaces (IBEX) Experi- ment (S1003) is shown in the top one half (1/2) of the right section, the Balloon Materials Degradation Experiment (S1006) is located in the center one third (1/3rd) section, and the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block remained white, paint on the left-center clamp block is lightly discolored and paint on the upper-right clamp block is heavily discolored. The Measurement of Heavy Cosmic-Ray Nuclei on LDEF experiment, located in the lower one half (1/2) of the right tray section, consist of an aluminum housing , a solid state track detector of CR-39 and Lexan sheet material, a thin aluminized Mylar foil thermal shield and an aluminized Kapton foil cover. The aluminum housing, coated with alodine 1200, provides a container and structural support for the detector stack and a thermal interface with the LDEF structure. Nonmagnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment adapter plate to the tray structure. Note reflections from the surroundings and ripples on the Kapton cover. The experiment appears to be intact with no apparent physical damage from the extended space exposure. The ripples in the Kapton cover foil observed in the prelaunch photograph also appear in the flight photographs but at a lower frequency of repetition. The source of discolorations on the aluminized Kapton cover, that appear to be horizontal scratches, is unknown. The discolorations were observed in the flight photograph but were seen as vertical scratches, not horizontal scratches. The dark shadowing on the left half of the experiment Kapton cover appears to be a reflection of support equipment. Photo, Experiment(s) shown==M0002-02 : Measurement of Heavy Cosmic-Ray Nuclei on LDEF Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-006.jpeg Classification==Flight Photo, LaRC #==L90-10454 Photo, JSC #==S32-82-006 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the orbiter aft flight deck during the LDEF retrieval and shows the positions of four (4) LDEF experiments mounted in a three (3) inch deep LDEF peripheral tray. The Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section, the Ion Beam Textured and Coated Surfaces (IBEX) Experiment (S1003) is shown in the top one half (1/2) of the right section, the Balloon Materials Degradation Experiment (S1006) is located in the center one third (1/3rd) section, and the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block remained white, paint on the left-center clamp block is lightly discolored and paint on the upperright clamp block is heavily discolored. The Measurement of Heavy Cosmic-Ray Nuclei on LDEF experiment, located in the lower one half (1/2) of the right tray section, consist of an aluminum housing , a solid state track detector of CR-39 and Lexan sheet material, a thin aluminized Mylar foil thermal shield and an aluminized Kapton foil cover. The aluminum housing, coated with alodine 1200, provides a container and structural support for the detector stack and a thermal interface with the LDEF structure. Nonmagnetic stainless steel fasteners are used to assemble the experiment and to attach the experiment adapter plate to the tray structure. The experiment appears to be intact with no apparent physical damage from the extended space exposure. The ripples in the Kapton cover foil observed in the prelaunch photograph also appear in the flight photographs but at a lower frequency of repetition. The source of discolorations on the aluminized Kapton Cover, that appear to be vertical scratches, is unknown. The discolorations were not apparent in prelaunch photographs. Photo, Experiment(s) shown==M0002-02 : Measurement of Heavy Cosmic-Ray Nuclei on LDEF Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-210.04.jpeg Classification==Prelaunch Photo, LaRC #==L89-04385 Photo, JSC #==None Photo, KSC #==KSC-384C-210.04 Photo, PI #==No value in DB Photo, Date Taken==01/16/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D03 location is divided into six sections. One of the six sections, lower right corner, provides space for one of three Trapped Proton Energy Spectrum Determination Experiment, M0002-01, modules. The other five sections of the tray contain M0003 sub-experiments consisting of coatings, thermal paints, polymers, glasses, composites, semi-conductors and detectors that provide data on various environmental parameters. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1485.05.jpeg Classification==Postflight Photo, LaRC #==L91-09252 Photo, JSC #==None Photo, KSC #==KSC-390C-1485.05 Photo, PI #==No value in DB Photo, Date Taken==02/28/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D03 location is divided into six sections. One of the six sections, lower right corner, provides space for one of three Trapped Proton Energy Spectrum Determination Experiment, M0002-01, modules. The other five sections of the tray contain M0003 sub-experiments consisting of coatings, thermal paints, polymers, glasses, composites, semi-conductors and detectors that provide data on various environmental parameters.The experiment appears to be in good condition. Composite material samples located in upper right, upper center and lower center tray sections remain intact but are bleached or discolored. The metallized and coated polymers located in the upper left tray section appear to be have survived the exposure intact but appear discolored. Approximately half of the thin film polymers in the lower left tray section are loose at one end but remain attached. The silver Teflon covers, the large square and the rectangular shapes in the center of the lower left section, appear to remain intact but have changed from silver to a milky white color where components are located beneath and to a golden color where no component is located. Thermal coatings in many locations are discolored by a light tan stain as are the exposed surfaces of the sample holders. The solar cell arrays appear to remain intact but two individual thin film cells appear to be buckled or missing. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-008.jpeg Classification==Flight Photo, LaRC #==L90-10494 Photo, JSC #==S32-89-008 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using non-magnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The white paint dots on the experiment tray clamp blocks appear to have changed significantly. The paint on the clamp block located in the center of the trays right flange is brown and the paint on the clamp blocks at each end of the left flange is gray. The tray flanges and clamp blocks appear to have a light tan discoloration. The experiment tray in the D03, trailing edge, location is divided into six sections. One of the six sections, lower right corner, provides space for one of three Trapped Proton Energy Spectrum Determination Experiment, M0002-01, modules. The other five sections of the tray contain M0003 sub-experiments consisting of coatings, thermal paints, polymers, glasses, composites, semi-conductors and detectors that provide data on various environmental parameters. The experiment appears to be in good condition. Composite material samples located in upper left, center left and center right tray sections remain intact but are bleached or discolored. The metallized and coated polymers located in the lower left tray section appear to have survived the exposure intact but are discolored. Approximately half of the thin film polymers in the lower right tray section are loose at one end but remain attached. The silver Teflon covers, the large square and the rectangular shapes in the center of the lower right section, appear to remain intact but have changed to a milky white color where components are located beneath and to a golden color where no component is located. Thermal coatings are discolored by a light tan stain as are the exposed surfaces of the sample holders. The solar cell arrays appear to remain intact but two individual thin film cells appear to be buckled or missing. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-210.01.jpeg Classification==Prelaunch Photo, LaRC #==L89-04382 Photo, JSC #==None Photo, KSC #==KSC-384C-210.01 Photo, PI #==No value in DB Photo, Date Taken==01/16/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D04 location is divided into three sections.The right section provides space for the EPDS, the center section accommodates the Signal Conditioning Unit (SCU) and an experiment mounting plate, on an aluminum sub-structure, populated with a composite material samples. The left section houses the EECC with its complement of experiment samples consisting of coatings, thermal paints, polymers, glasses, semi-conductors. Detectors within the experiment provide environmental data for use in postflight analyses. Batteries and inter-tray connections are located beneath the tray base plates. The EPDS is underneath an aluminum cover, coated with a white thermal control paint (Chemglaze II A-276) and thermally isolated from the tray structure by fiberglass clips. The SCU cover is also coated with a white thermal control paint, IITRI S13G-LO, and the EECC is covered with a chromic anodized aluminum thermal cover. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-004.jpeg Classification==Flight Photo, LaRC #==L90-10493 Photo, JSC #==S32-89-004 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using non-magnetic stainless steel fasteners. One six-inch tray and one three-inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The white paint dots on the experiment tray clamp blocks appear to have changed significantly. The paint on the clamp block located in the center of the trays right flange is brown and the paint on the clamp block at the upper end of the left flange is gray. The trays right flange and clamp blocks appear to have a light tan discoloration. The experiment tray in the D04 location is divided into three sections.The top section provides space for the EPDS, the center section accommodates the Signal Conditioning Unit (SCU) and an experiment mounting plate, on an aluminum sub-structure, that is populated with composite material samples. The lower section houses the EECC with a complement of experiment samples that consist of coatings, thermal paints, polymers, glasses and semiconductors. Detectors within the experiment provide environmental data for use in postflight analyses. Batteries and the inter-tray wiring harness are located beneath the tray base plates. The EPDS is located under an aluminum cover that is coated with a white thermal control paint (Chemglaze II A-276) and thermally iso- lated from the tray structure by fiberglass clips. The SCU cover is also coated with a white thermal control paint, IITRI S13G-LO, and the EECC is covered with a chromic anodized aluminum thermal cover. The white paint (Chemglaze II A-276) on the EPDS cover has turned to a medium brown and the IITRI S13G-LO white paint has become light tan or off-white in color. Colors of the composite material samples are bright and clear with some material samples appearing to be blue in this photograph but not in prelaunch or postflight photographs. The composite materials experiment mounting plate has discolorations varying from a light tan to a medium brown and the rectangular aluminum cover plate located in the upper left corner of the experiment is a uniform light brown color. The thermal covers on the EECC appears to have changed to a lavender or purple color in this photograph but maintains the color of anodized aluminum in postflight photos. The dark square shaped discolorations on the upper corners of the thermal cover are pads of tape used to cover sharp corners that were exposed. The pads were not in place in the prelaunch photograph Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1478.03.jpeg Classification==Postflight Photo, LaRC #==L91-09173 Photo, JSC #==None Photo, KSC #==KSC-390C-1478.03 Photo, PI #==No value in DB Photo, Date Taken==02/28/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D04 location is divided into three sections.The right section provides space for the EPDS, the center section accommodates the Signal Conditioning Unit (SCU) and an experiment mounting plate, on an aluminum sub-structure, that is populated with composite material samples. The left section houses the EECC with a complement of experiment samples that consist of coatings, thermal paints, polymers, glasses, semi-conductors. Detectors within the experiment provide environmental data for use in postflight analyses. Batteries and inter-tray wiring harness are located beneath the tray base plates. The EPDS is underneath an aluminum cover, coated with a white thermal control paint (Chemglaze II A-276) and thermally isolated from the tray structure by fiberglas clips. The SCU cover is also coated with a white thermal control paint, IITRI S13G-LO, and the EECC is covered with a chromic anodized aluminum thermal cover. The white paint (Chemglaze II A-276) on the EPDS cover has turned to a medium brown and the IITRI S13G-LO white paint has become light tan or off-white in color. Colors of the composite material samples are clear but not as bright as in the flight photograph. The material samples that appeared blue in the flight photograph are more subdued with very little of the blue tint observed. The composite materials experiment mounting plate has discolorations varying from a light tan to a medium brown and the rectangular aluminum cover plate located in the upper left corner of the experiment is a uniform light brown color. The thermal covers on the EECC that appeared to be a lavender or purple color in the flight photograph is the color of anodized aluminum in the postflight photos. The dark square shaped discolorations on the upper corners of the thermal cover are pads of tape used to cover sharp corners that were exposed. The pads were not in place in the prelaunch photograph. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-013.jpeg Classification==Flight Photo, LaRC #==L90-10377 Photo, JSC #==S32-76-013 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using non-magnetic stainless steel fasteners. One six-inch tray and one three-inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The white paint dots on the experiment tray clamp blocks appear to have no significant change in color. The experiment tray in the D08 location is divided into three sections.The top section provides space for the EPDS, the center section accommodates the Signal Conditioning Unit (SCU) and an experiment mounting plate, on an aluminum sub-structure, that is populated with composite material samples. The lower section houses the EECC with a complement of experiment samples that consist of coatings, thermal paints, polymers, glasses and semiconductors. Detectors within the experiment provide environmental data for use in postflight analyses. Batteries and the inter-tray wiring harness are located beneath the tray base plates. The EPDS is located under an aluminum cover that is coated with a white thermal control paint (Chemglaze II A-276) and thermally iso- lated from the tray structure by fiberglass clips. The SCU cover is also coated with a white thermal control paint, IITRI S13G-LO, and the EECC is protected with a chromic anodized aluminum thermal cover. The white paint (Chemglaze II A-276) on the EPDS cover has no apparent change in color but the IITRI S13G-LO white paint on the SCU cover has a brownish tint with a darker tan strip along the right vertical line of screws. Colors of the composite material samples are bright and clear with some material samples appearing to be blue in this photograph but not in prelaunch or postflight photographs. A discoloration on the samples located in the lower right corner of the mounting plate is apparent. The composite materials experiment mounting plate has discolorations varying from a light tan to a medium brown along the lower edge and the rectangular aluminum cover plate located in the lower left corner of the experiment is a uniform brown color. The thermal covers on the EECC are intact and appear to have a light brownish tint. The swirls and streaks on the larger cover appear to be from the preflight cleaning process and are enhanced by the lighting. The dark square shaped discolorations on the upper corners of the thermal cover are pads of tape used to cover sharp corners that were exposed. The pads were not in place in the prelaunch photograph. The canister base plate has become discolored by a brown stain during the mission. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07066 Photo, JSC #==None Photo, KSC #==KSC-384C-193.08 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D08 location is divided into three sections.The right section provides space for the EPDS and the center section accommodates the Signal Conditioning Unit (SCU) and an experiment mounting plate, on an aluminum sub-structure, populated with composite material samples. The left section houses the EECC with its complement of experiment samples consisting of coatings, thermal paints, polymers, glasses, semi-conductors. Detectors within the experiment provide environmental data for use in postflight analyses. Batteries and inter-tray connections are located beneath the tray base plates. The EPDS is under an aluminum cover, coated with a white thermal control paint (Chemglaze II A-276) and thermally isolated from the tray structure by fiberglass clips. The SCU cover is also coated with a white thermal control paint, IITRI S13G-LO, and the EECC is protected with a chromic anodized aluminum thermal cover. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.09.jpeg Classification==Postflight Photo, LaRC #==L90-13419 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC prior to the experiment trays removal from the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D08 location is divided into three sections.The right section provides space for the EPDS, the center section accommodates the Signal Conditioning Unit (SCU) and an experiment mounting plate, on an aluminum sub-structure, that is populated with composite material samples. The left section houses the EECC with a complement of experiment samples that consist of coatings, thermal paints, polymers, glasses, semi-conductors. Detectors within the experiment provide environmental data for use in postflight analyses. Batteries and inter-tray wiring harness are located beneath the tray base plates. The EPDS is under an aluminum cover, coated with a white thermal control paint (Chemglaze II A-276) and thermally isolated from the tray structure by fiberglass clips. The SCU cover is also coated with a white thermal control paint, IITRI S13G-LO, and the EECC is covered with a chromic anodized aluminum thermal cover. The white paint (Chemglaze II A-276) on the EPDS cover has no apparent change in color but the IITRI S13G-LO white paint on the SCU cover has a brownish tint with a darker tan strip along the lower row of screws. The composite material samples appear dull with some samples having changed colors from the prelaunch photographs. Many samples appear to have a light brown discoloration and some of the originally dark colored samples appear faded or oxidized. Samples located in the lower right corner of the mounting plate are discolored and with a brown stain. The composite materials experiment mounting plate has discolorations varying from a light tan to a medium brown along the left edge and the rectangular aluminum cover plate located in the upper left corner of the experiment is a uniform brown color. The thermal covers on the EECC are intact and appear to have a very light brownish tint. The swirls and streaks on the larger cover observed in the flight photograph are not visible. The bright square shaped discolorations on the upper corners of the thermal cover are pads of tape used to cover sharp corners that were exposed. The pads were not in place in the prelaunch photograph. During the mission, the canister base plate has become discolored by a light tan stain and the canister mounting rails by a darker brown stain. A brown discoloration is visible on tray flanges along the left edge and lower edges of the canister's larger thermal cover Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-093.jpeg Classification==Flight Photo, LaRC #==L90-10450 Photo, JSC #==S32-78-093 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using non-magnetic stainless steel fasteners. One six-inch tray and one three-inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The originally white paint dots on the clamp block located in the center of the trays right flange and on the clamp blocks at each end of the left flange appear to be off-white. The experiment tray in the D09, leading edge, location is divided into six sections. One of the six sections, upper right corner, provides space for one of three Trapped Proton Energy Spectrum Determination Experiment, M0002-01, modules. The other five sections of the tray contain M0003 sub-experiments consisting of coatings, thermal paints, polymers, glasses, composites, solar power components, semi-conductors and detectors that provide various environmental data. The experiment, overall, appears in good condition. The experiments located in the upper left and center left sections are heavily coated with debris particles from other degraded experiments. Experiments in three of the five sections appear to have survived the mission intact with minor physical damage. Experiments in the other two sections have sustained damage to thin metallized and/or coated polymer samples. The material samples located in upper left section of the tray consist of a composite plate with two quadrants painted white, one quadrant painted black and one quadrant remaining bare. The experiment remains intact with the only apparent change being the color of the bare composite. The samples in the center left and the center right tray sections remain intact but appear sharper and brighter due to the excess blue in the photo. In the center left section, the plate securing the three rectangular samples along the right edge appears to have changed from dark brown to a light tan color. Along the left side the two horizontal rectangular aluminum mounting brackets appear gold in color and the square sample mount in the upper left corner has changed from dark brown to a light tan. Two thin film solar cells are missing and the cell mountings appear to have changed colors. The experiment in the center right section appears to be intact with only a few samples changing colors. The two white circular samples were bright yellow and the two light tan square mounts to the right of the four off-white squares were dark brown in the prelaunch photograph. The experiment in the lower left section of the tray consist of three metallized polymer and one coated polymer samples.The test sample in the upper left corner, a grid of metallic foil squares on a Kapton sheet, is essentially gone. The sample in the upper right, a metallized Kapton sheet, appears to be intact with only a few spots where the foil is missing. The sample in the lower left corner, a Kapton sheet imprinted with a pattern of metallic foil tripoles, is severely degraded and remains attached in only a few spots. The test sample in the lower right corner, Kapton sheet with a white paint overcoat, appears to be intact only a change in color from white to a light gray. The other two samples, upper right and lower left corners, are severely degraded. The metallized and coated polymers located in the lower right tray section appear to have survived the exposure intact but are discolored. Approximately half of the thin film polymers in the upper right corner of the section are loose at one end but remain attached. The silver Teflon cover, the large rectangular shape near the center of the section, appears to remain intact but has changed to a milky white color. Thermal control coatings, mounted along the left side of the section, are discolored as are the exposed surfaces of the sample holders. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1529.03.jpeg Classification==Postflight Photo, LaRC #==L91-10336 Photo, JSC #==None Photo, KSC #==KSC-390C-1529.03 Photo, PI #==No value in DB Photo, Date Taken==02/27/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using nonmagnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D09, leading edge, location is divided into six sections. One of the six sections, upper right corner, provides space for one of three Trapped Proton Energy Spectrum Determination Experiment, M0002-01, modules. The other five sections of the tray contain M0003 sub-experiments consisting of coatings, thermal paints, polymers, glasses, composites, solar power components, semiconductors and detectors that provide various environmental data. The experiments, overall, appear to be in good condition. The experiments located in the upper left and center left sections are heavily coated with debris particles from the degradation of other experiments. Experiments in three of the five sections appear to have survived the mission intact with minor physical damage. Experiments in the other two sections have sustained damage to thin metallized and/or coated polymer samples. The material samples located in upper right section of the tray consist of a composite plate with two quadrants painted white, one quadrant painted black and one quadrant remaining bare. The experiment remains intact with the only apparent change being the color of the bare composite. The samples in the upper center and the lower center tray sections appear to remain intact. In the upper center section, the plate securing the three rectangular samples along the lower edge appears to have changed from the prelaunch dark brown to a light tan color. Along the upper side the two vertical rectangular aluminum mounting brackets appear gold in color and the square sample mount in the upper right corner has changed from a prelaunch dark brown to a light tan. Two thin film solar cells are missing and the cell mountings appear to have changed colors. The two rectangular composite samples in the left center of the section have changed to a slate gray color. The experiment in the lower center section of the tray appears to be intact with only a few samples changing colors. The two white circular samples that appeared bright yellow in the prelaunch photo and white in the flight photo now appear to be slate gray. The two composite samples in the upper left corner of the section, one black and one blue, were dark brown in the prelaunch photograph. The experiment in the upper left section of the tray consist of three metallized polymer and one coated polymer samples.The test sample in the upper right corner, a grid of metallic foil squares on a Kapton sheet, is gone. The sample in the lower right, a metallized Kapton sheet, appears to be discolored but intact with only a few small areas where the foil is missing. The sample in the upper left corner, a Kapton sheet imprinted with a pattern of metallic foil tripoles, is severely degraded and only a flap of the material, hanging down over the sample below, remains attached. The test sample in the lower left corner, a Kapton sheet with a white paint overcoat, appears to be intact with no change apparent. The metallized and coated polymers located in the lower left tray section appear to have survived the exposure intact but are discolored. Approximately half of the thin film polymers in the lower right corner of the section are loose at one end but remain attached. The silver Teflon cover, the large rectangular shape near the center of the section, appears to remain intact but has changed to a milky white color. Thermal control coatings, mounted along the upper edge of the section, are discolored as are the exposed surfaces of the sample holders. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-8.02.jpeg Classification==Prelaunch Photo, LaRC #==L84-06999 Photo, JSC #==None Photo, KSC #==KSC-384C-8.02 Photo, PI #==No value in DB Photo, Date Taken==01/10/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Spacecraft Materials Experiment hardware consist of four LDEF peripheral trays (two sets), two Experiment Power and Data Systems (EPDS), two Environment Exposure Control Canisters (EECC), twelve LiSO2 batteries and internal support structure, instrumentation and black anodized aluminum mounting plates for experiment samples. The experiment structural members were assembled using non-magnetic stainless steel fasteners. One six inch tray and one three inch tray with a connecting wiring harness, one EPDS, one EECC and six LiSO2 batteries were located in tray locations D08 and D09 near the LDEF leading edge and a similar set of hardware was located near the LDEF trailing edge in tray locations D03 and D04. The environmental exposure was similar with one significant exception, the trailing edge location was not exposed to continuous bombardment by the relativity high atomic oxygen flux. The experiment tray in the D09 location is divided into six sections. One of the six sections, lower right corner, provides space for one of three Trapped Proton Energy Spectrum Determination Experiment, M0002-01, modules. The other five sections of the tray contain M0003 sub-experiments consisting of coatings, thermal paints, polymers, glasses, composites, semiconductors and detectors that provide data on various environmental parameters. Photo, Experiment(s) shown==M0003 : Space Environment Effects on Spacecraft Materials Associated Tray(s)==Tray Location: D09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1145.02.jpeg Classification==Postflight Photo, LaRC #==L91-15071 Photo, JSC #==None Photo, KSC #==KSC-390C-1145.02 Photo, PI #==No value in DB Photo, Date Taken==02/18/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to removal of the experiment from the LDEF. The color of the white paint dot on the center clamp block of the experiment tray lower flange appears to be unchanged. The Space Environment Effects on Fiber Optic Systems Experiment occupies a six (6) inch deep LDEF peripheral tray and consist of an aluminum internal support structure, an Electronic Power and Data System (EPDS), three aluminum experiment mounting plates, two aluminum cover plates, four operational digital optical data links (lengths of 48 m, 45 m and two 20 m) exposed to the space environment, three passive cabled fiber optic links (each 10 m long) with electronic components and end connectors, aluminum brackets and non-magnet stainless steel fasteners required to assemble the experiment. Four active cabled optical fiber links (one black, one blue, one yellow and one light tan), each configured in the form of a planar, helix coil, are attached to thermally isolated mounting plates with black anodized aluminum clips cushioned with silicone-rubber spacers. The three mounting plates are coated with a Catalac off-white thermal control paint, the large cover plate is coated with Chemglaze II A-276 white paint and the smaller cover plate is coated with IITRI S13G-LO white paint to meet thermal control requirements. The three passive cabled optical fiber links and all emitters, detectors and associated electronics are located in the interior volume of the tray. All cabled optical fibers terminate in connectors mounted in brackets that are located in the tray bottom or on the backside of the thermally isolated mounting plates. The Space Environment Effects on Fiber Optic Systems Experiment appears to be intact with no apparent structural damage. Colors of all three exposed coils of fiber optic cables have changed significantly. The cable located in the lower right corner, originally glossy black, appears to be dark brown and the cable in the lower left position, originally a glossy royal blue, now appears to be a navy blue color. The two 20 m coils of fiber optics links appear to have more extensive color changes. The originally yellow cable, that appeared slate gray in the flight photograph, now appears a light gray and the brown cable in the flight photograph appears to be a lighter brown. Details of the discoloration above the light gray coiled link, observed in the flight photograph, can be seen. The color of the silicone-rubber spacers under the coil attach clips have changed from clear to brown and appear to have discolored the light gray cable link. Brown discolorations appear on the left edge of the large cover plate and on the tray structure in the vertical clearance (top, center and bottom) between the mounting plates The Chemglaze white paint on the large cover plate appears to have maintained the prelaunch color but the IITRI S13G-LO white paint on the small cover plate appears to have changed to a uniform light tan color. Spots on the large cover plate that appeared to be impact craters in the flight photograph can be seen on the white paint in the lower left corner of the plate. Other craters, not readily visible in the flight photograph, can also be seen. Photo, Experiment(s) shown==M0004 : Space Environment Effects on Fiber Optics Systems Associated Tray(s)==Tray Location: F08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-020.jpeg Classification==Flight Photo, LaRC #==L90-10379 Photo, JSC #==S32-76-020 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dot on the center clamp block of the experiment tray lower flange appears to be slightly discolored. The Space Environment Effects on Fiber Optic Systems Experiment occupies a six (6) inch deep LDEF peripheral tray and consist of an aluminum internal support structure, an Electronic Power and Data System (EPDS), three aluminum experiment mounting plates, two aluminum cover plates, four operational digital optical data links (lengths of 48 m, 45 m and two 20 m) exposed to the space environment, three passive cabled fiber optic links (each 10 m long) with electronic components and end connectors, aluminum brackets and non-magnet stainless steel fasteners required to assemble the experiment. Four active cabled optical fiber links (one black, one blue, one yellow and one light tan), each configured in the form of a planar, helix coil, are attached to thermally isolated mounting plates with black anodized aluminum clips cushioned with silicone-rubber spacers. The three mounting plates are coated with a Catalac off-white thermal control paint, the large cover plate is coated with Chemglaze II A-276 white paint and the smaller cover plate is coated with IITRI S13G-LO white paint to meet thermal control requirements. The three passive cabled optical fiber links and all emitters, detectors and associated electronics are located in the interior volume of the tray. All cabled optical fibers terminate in connectors mounted in brackets that are located in the tray bottom or on the backside of the thermally isolated mounting plates. The Space Environment Effects on Fiber Optic Systems Experiment appears to be intact with no apparent structural damage. Colors of all three exposed coils of fiber optic cables have changed significantly. The cable located in the upper right corner, originally glossy black, appears to be dark brown and the cable in the lower right position, originally a glossy royal blue, now appears to be a navy blue color. The two 20 m coils of fiber optics links appear to have more extensive color changes. The originally yellow cable now appears slate gray and the light tan cable appears brown. The color of the silicone-rubber spacers under the coil attach clips appears to have changed from clear to brown. Brown discolorations have appeared on the lower edge of the large cover plate and on the tray sidewall at the upper edge of the cover plate. The IITRI S13G-LO white paint on the smaller cover plate appears to have a uniform light tan discoloration. Spots that appear to be impact craters can be seen on the white paint in the lower right corner of the large cover plate. Photo, Experiment(s) shown==M0004 : Space Environment Effects on Fiber Optics Systems Associated Tray(s)==Tray Location: F08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-293.07.jpeg Classification==Prelaunch Photo, LaRC #==L84-07104 Photo, JSC #==None Photo, KSC #==KSC-384C-293.07 Photo, PI #==No value in DB Photo, Date Taken==01/19/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Space Environment Effects on Fiber Optic Systems Experiment on the LDEF. The Space Environment Effects on Fiber Optic Systems Experiment occupies a six (6) inch deep LDEF peripheral tray and consist of an aluminum internal support structure, an Electronic Power and Data System (EPDS), three aluminum experiment mounting plates, two aluminum cover plates, four operational digital optical data links (lengths of 48 m, 45 m and two 20 m) exposed to the space environment, three passive cabled fiber optic links (each 10 m long) with electronic components and end connectors, aluminum brackets and non-magnet stainless steel fasteners required to assemble the experiment. Four active cabled optical fiber links (one black, one blue, one yellow and one light tan), each configured in the form of a planar, helix coil, are attached to thermally isolated mounting plates with black anodized aluminum clips cushioned with silicone-rubber spacers. The three mounting plates are coated with a Catalac off-white thermal control paint, the large cover plate is coated with Chemglaze II A-276 white paint and the smaller cover plate is coated with IITRI S13G-LO white paint to meet thermal control requirements. The three passive cabled optical fiber links and all emitters, detectors and associated electronics are located in the interior volume of the tray. All cabled optical fibers terminate in connectors mounted in brackets that are located in the tray bottom or on the backside of the thermally isolated mounting plates. Photo, Experiment(s) shown==M0004 : Space Environment Effects on Fiber Optics Systems Associated Tray(s)==Tray Location: F08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-029.jpeg Classification==Flight Photo, LaRC #==L90-10498 Photo, JSC #==S32-89-029 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm, seen along the left side of the photograph, and provides an on-orbit view of the C02 integrated tray. When comparing this photograph with the prelaunch photograph, one of the most noticeable changes is the brown stain, attributed to outgassing and contamination, on the experiment hardware within the tray. M0006 The EECC containing the M0006 experiment appears to be in excellent shape after the sixty nine (69) month mission. A light brown stain is visible on the base plate, the canister support rails and the canister's thermal covers. Close inspection reveals impact craters, seen as white dots, in several locations on the thermal covers and on the base plate. Photo, Experiment(s) shown==M0006 : Space Environment Effects Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-144.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07057 Photo, JSC #==None Photo, KSC #==KSC-384C-144.08 Photo, PI #==No value in DB Photo, Date Taken==01/11/1984 Photo, Description== Space Environment experiment is contained within the Experiment Exposure Control Canister (EECC) that is located in the right one third (1/3rd) of the experiment tray. The EECC hardware consists of the housing, the drawer that contains the experiment samples, the drawer opening and closing mechanism (a screw drive system) and chromic anodized aluminum thermal covers that are seen in the photograph. The hardware is fabricated from aluminum or non-magnetic steels and is assembled with non-magnetic stainless steel fasteners. The canister will be opened in orbit after the LDEF has been deployed, the Orbiter has departed and initial outgassing of materials on the LDEF has occurred. The canister is programmed to close approximately nine (9) months after opening and prior to the scheduled LDEF retrieval. Experiment samples located in the EECC consist of mirrors, fiber optic components, semiconductors, polymer films and seeds housed in a sealed aluminum tube. Photo, Experiment(s) shown==M0006 : Space Environment Effects Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-609.09.jpeg Classification==Postflight Photo, LaRC #==L92-17835 Photo, JSC #==None Photo, KSC #==KSC-390C-609.09 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The postflight photograph was taken in the Orbiter Processing Facility during the period when the LDEF was being transferred from the Orbiter cargo bay to the KSC Payload Transporter. The EECC containing the M0006 experiment appears to be in excellent shape after the sixty-nine (69) month mission. The lighting is such that details of changes to the surfaces of the base plate, the canister support rails or the canister's thermal covers can be determined. Photo, Experiment(s) shown==M0006 : Space Environment Effects Associated Tray(s)==Tray Location: C02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-081.jpeg Classification==Flight Photo, LaRC #==L90-10488 Photo, JSC #==S32-85-081 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall Earth end view of the LDEF on the Remote Manipulator System arm with the Earth's Cloud cover in the background. Note the brown discolorations on several of the experiments painted surfaces. The Orbiter, in the lower left corner of the photograph, is in the shadow of the LDEF. The Earth with its cloud cover provides the background for the LDEF. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32-S-294.jpeg Classification==Postflight Photo, LaRC #==L92-21201 Photo, JSC #==S32-S-294 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== An overall view of the Space End of the LDEF taken from the Orbiter cargo bay access hatch after landing at Edwards Air Force Base, California. The cargo bay liner is in the left side of the photograph and the radiators located on the inside of the Orbiter payload bay doors are in the right side. Note the three yellow balls on aluminum support rods (whiskers) fixed in the cargo bay that were used as berthing aids during the LDEF retrieval operations. A brown discoloration appears to be spread over the LDEF space end surface. The discoloration appears to be lighter on the anodized aluminum thermal panel surfaces and darker on the experiment surfaces coated with the Chemglaze A276 white thermal control paint and on uncoated aluminum hardware such as the end frame splice plates. The amber and red reflectors appear to be intact with little degradation apparent. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-008.jpeg Classification==Flight Photo, LaRC #==L90-10468 Photo, JSC #==S32-85-008 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall view of the LDEF from the Space end prior to capturing LDEF with the Orbiter's Remote Manipulator System (RMS) arm. Note the extensive damage to the Heavy Ions In Space Experiment thermal covers and the RMS arm poised to grapple the LDEF. The aft flight deck window frame blanks out an area along the left side of the photograph and the background is provided by the Earth and clouds. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-041.jpeg Classification==Flight Photo, LaRC #==L90-00410 Photo, JSC #==S32-77-041 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall Space end oblique view of the LDEF on the Remote Manipulator System arm. Note the damaged thermal covers of the Heavy Ions in Space experiment. The Orbiter tail structure and one of the orbiter manuvering system pods are shown in the left half of the photograph. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-060.jpeg Classification==Flight Photo, LaRC #==L90-10466 Photo, JSC #==S32-82-060 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall view of the LDEF space end during berthing the LDEF in the Orbiter's cargo bay using the Remote Manipulator System arm. Note the damage to the thermal covers of the Heavy Ions In Space Experiment and the prominent brown discolorations on other experiment hardware. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-419.47.jpeg Classification==Prelaunch Photo, LaRC #==L84-07267 Photo, JSC #==None Photo, KSC #==KSC-384C-419.47 Photo, PI #==No value in DB Photo, Date Taken==02/06/1984 Photo, Description== A prelaunch photograph taken in the SAEF at KSC with the LDEF on the LDEF Assembly and Transport System provides an overall view of the LDEF space end bays after experiments were installed on the LDEF. The red covers on the upper left experiment tray protect the solar cell arrays and prevent battery charging prior to the launch of LDEF / STS-41C. The green tint of the photograph is the result of the SAEF II mercury vapor overhead lights. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-008.jpeg Classification==Flight Photo, LaRC #==L90-10348 Photo, JSC #==S32-75-008 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through E on Rows 2 through 5 with the LDEF on the Remote Manipulator System arm and the Earth in the background. Discolorations are apparent on the scuff plate and many of the experiment surfaces. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-003.jpeg Classification==Flight Photo, LaRC #==L90-10347 Photo, JSC #==S32-75-003 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays B and C on Rows 3 through 7 with the LDEF on the Remote Manipulator System arm. The bright pink tint along the right side of the photograph and to a lesser degree on the photograph in general appears to be a reflected light from the Orbiter's aft flight deck window. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-025.jpeg Classification==Flight Photo, LaRC #==L90-10471 Photo, JSC #==S32-85-025 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through D on Rows 2 through 6 with the LDEF on the Remote Manipulator System arm with the Earth in the background. The scuff plates appear to be discolored as do surfaces of many experiments. The frame of the Orbiter's aft flight deck window is visible along the left side of the photographs . Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-030.jpeg Classification==Flight Photo, LaRC #==L90-10473 Photo, JSC #==S32-85-030 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays C through F on Rows 2 through 6 with the LDEF on the Remote Manipulator System arm, the Orbiter's cargo bay to the left and the Earth in the background. Discolorations are apparent on the scuff plate and on white paint surfaces of several experiments. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-012.jpeg Classification==Flight Photo, LaRC #==L90-10469 Photo, JSC #==S32-85-012 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through E on Rows 3 through 6 with the LDEF on the Remote Manipulator System arm and the Earth in the background. The dark shading in the left side of the photograph appears to be the outline of the Orbiter's aft flight deck window. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-039.jpeg Classification==Flight Photo, LaRC #==L90-10475 Photo, JSC #==S32-85-039 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through F on Rows 1 through 5 with the LDEF on the Remote Manipulator System arm and the Earth with cloud cover in the background. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-017.jpeg Classification==Flight Photo, LaRC #==L90-10470 Photo, JSC #==S32-85-017 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays D through F on Rows 3 through 6 with the LDEF on the Remote Manipulator System arm and hovering over the Orbiter's cargo bay. The Earth and the horizon can be seen in the background. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-064.jpeg Classification==Flight Photo, LaRC #==L90-10483 Photo, JSC #==S32-85-064 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through F on Rows 8 through 12 with the LDEF on the Remote Manipulator System arm. The Orbiter cargo bay is in the left side of the photograph and the Orbiter's aft flight deck window frame is in the right side. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-091.jpeg Classification==Flight Photo, LaRC #==L90-10489 Photo, JSC #==S32-85-091 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through F on Rows 4 through 7 with the LDEF on the Remote Manipulator System arm with the Orbiter in the left half of the photograph and the Earth under a cloud cover in the background. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-093.jpeg Classification==Flight Photo, LaRC #==L90-10490 Photo, JSC #==S32-85-093 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through C on Rows 4 through 7 with the LDEF on the Remote Manipulator System arm. The bright pink color in the left of the photograph appears to be caused by interior lights reflecting on the aft flight deck window. The aft flight deck window frame is also seen in the left half of the photograph and the Earth's cloud cover is in the background. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-097.jpeg Classification==Flight Photo, LaRC #==L90-10491 Photo, JSC #==S32-85-097 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays C through F on Rows 4 through 7 with the LDEF on the Remote Manipulator System arm with the Orbiter's cargo bay visible in the left half of the photograph and the Earth's cloud cover in the background. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-054.jpeg Classification==Flight Photo, LaRC #==L90-10480 Photo, JSC #==S32-85-054 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays C through F on Rows 11 through 3 with the LDEF on the Remote Manipulator System arm. The aft flight deck window frame shadows the left edge of the photograph and the Earth with its cloud cover provides the background for the LDEF. Note the clean appearance of the white paints on thermal covers in row 12 when compared with similar paint on experiment hardware in rows 2 and 3. The white paint dots on the experiment tray clamp blocks on row 12 appear clean and darken as progressively as you approach row 3. The original bright yellow paint on the trunnion scuff plates on row 3 has darkened significantly. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1029.01.jpeg Classification==Postflight Photo, LaRC #==L90-13387 Photo, JSC #==None Photo, KSC #==KSC-390C-1029.01 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays A , the bay adjacent to the Earth end, thru Bay C in Rows 8, the upper row, thru Row 11, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces shown were facing in the direction of the orbital velocity vector and therefore exposed to the higher flux levels of atomic oxygen. The image shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. Most experiments appear to be intact. however, the Solar Array Materials Experiment (AO171) located in a tray in the upper left corner (tray A08) appears to have several solar array assemblies missing and the Exposure of Spacecraft Materials Experiment (S0010) located in the LDEF experiment B09 position appears to be missing most of the thin film polymer samples. The silver Teflon thermal cover material appears opaque with randomly located dark circular spots that appear to be debris points of impact. The painted surfaces on both the experiments and the scuff plates appear to be essentially the same as preflight. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1029.02.jpeg Classification==Postflight Photo, LaRC #==L90-13388 Photo, JSC #==None Photo, KSC #==KSC-390C-1029.02 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays D , the bay adjacent to the center ring structure, thru Bay F in Rows 8, the upper row, thru Row 11, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces shown were facing in the direction of the orbital velocity vector and therefore exposed to the higher flux levels of atomic oxygen. The view shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. Most experiments other than the Debris experiment (S0001) appear to have been degraded by the erosion of thin film polymer samples and/or signifi- cant color changes. Erosion of the thin film polymer samples is extensive on experiments located in LDEF positions D09, D10, E08 and F09. The silver Teflon thermal cover material on experiments located in the D11 and E10 positions appears opaque with randomly located dark circular spots that appear to be debris points of impact. The black painted surface on the experiment in the E09 location has eroded exposing the red primer while some of the white paints on experiment surfaces and the yellow paint on the scuff plate appear in near prelaunch condition. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.04.jpeg Classification==Postflight Photo, LaRC #==L90-13414 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.04 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays A , the bay adjacent to the center ring structure, thru Bay C in Rows 06, the upper row, thru Row 09, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces of experiments located on LDEF rows 09, 08, and 07 were facing in the direction of the orbital velocity vector with row 09 experiments exposed to the highest flux level of atomic oxygen and rows 08 and 07 receiving lesser flux. The image shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. Most experiments appear to be intact. The silver Teflon thermal cover material on experiments located in the A09 and C08 positions appears opaque while the same material in the B07 and C06 appears specular.The yellow paint on the scuff plate and the white paint on experiment surfaces appear in near prelaunch condition. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.05.jpeg Classification==Postflight Photo, LaRC #==L90-13415 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.05 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays D , the bay adjacent to the center ring structure, thru Bay F in Rows 06, the upper row, thru Row 09, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces of experiments located on LDEF rows 09, 08, and 07 were facing in the direction of the orbital velocity vector with row 09 experiments exposed to the highest flux level of atomic oxygen and rows 08 and 07 receiving lesser flux. The surfaces of experiments located on LDEF row 06 were parallel with the orbital velocity and was exposed to a low flux level of atomic oxygen. The image shows the sur- faces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. Most experiments appear to be intact. The silver Teflon thermal cover material on the experiment located in the D07 LDEF position appears specular.The yellow paint on the scuff plate and the white paint on experiment surfaces located on row 08 appear in near prelaunch condition. The white paint on surfaces of the experiments located on row 06 appear discolored by a light brown stain. The black paint on the experiment located in the LDEF position E09 has erode to such an extent that the red primer is visible. The thin film polymeric material samples in experiments located in the C09 and E06 positions have eroded and remain attached by only one end. The metallized thin polymeric film on the experiment in the E08 location appears to have completely eroded with only fragments around the edges remaining. The degraded thermal blanket material has been removed from the experiment located in the LDEF position F09. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.02.jpeg Classification==Postflight Photo, LaRC #==L90-13434 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.02 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays A , the bay adjacent to the center ring structure, thru Bay C in Rows 04, the upper row, thru Row 07, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces of experiments located on LDEF row 07 were facing in the direction of the orbital velocity vector and therefore exposed to a low level of atomic oxygen flux. The experiments located on rows 06, 05 and 04 were parallel to the velocity vector or in the LDEF wake and received a much lower bombardment by atomic oxygen. The image shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. The experiments appear to be intact with no apparent damage. The silver Teflon thermal cover material covering five experiments appears to have remained specular and the metallized polymeric thin film on the experiment located in the LDEF B04 position appears in near prelaunch condition. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.03.jpeg Classification==Postflight Photo, LaRC #==L90-13435 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.03 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays D , the bay adjacent to the center ring structure, thru Bay F in Rows 04, the upper row, thru Row 07, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surface of experiments located on LDEF rows 07 were facing in the direction of the orbital velocity vector and therefore exposed to a lower level of atomic oxygen flux . The experiments located on rows 06, 05 and 04 were either parallel to the velocity vector or in the LDEF wake where degradation due to atomic oxygen bombardment is minimal. The image shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. Most experiments appear to be intact. The silver Teflon thermal cover material on the experiments located in the D05, D07 and F04 LDEF position appears specular. The white paint on surfaces of the experiments located in LDEF positions D04,E06 and F06 appear discolored by a light brown stain. The thin film polymer material samples of the experiment located in the E06 position have eroded and several remain attached by only one end. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1065.08.jpeg Classification==Postflight Photo, LaRC #==L90-13465 Photo, JSC #==None Photo, KSC #==KSC-390C-1065.08 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays A , the bay adjacent to the center ring structure, thru Bay C in Rows 12, the upper row, thru Row 03, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces of the experiments located on rows 12, 01, 02 and 03 were either parallel to the velocity vector or in the LDEF wake where degradation due to atomic oxygen bombardment is minimal. The image shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. The experiments appear intact with no apparent damage. The silver Teflon thermal control mate- rial covering the experiment in LDEF position A02 appears to have remained specular. Note the progressive darkening of the white paint dots on the experiment tray clamp blocks as you scan from row 12 to row 03. The white paint on experiment surfaces in rows 02 and 03 appears stained with a light brown stain and the scuff plate color has changed from a bright caution yellow to a dull and darker yellow. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1065.09.jpeg Classification==Postflight Photo, LaRC #==L90-13466 Photo, JSC #==None Photo, KSC #==KSC-390C-1065.09 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The image provides an overall view of LDEF experiments located in Bays D , the bay adjacent to the center ring structure, thru Bay F in Rows 12, the upper row, thru Row 03, the lower row. The LDEF is mounted on the LDEF Assembly and Transport System (LATS) in the rotation mode. The surfaces of the experiments located on rows 12, 01, 02 and 03 were either parallel to the velocity vector or in the LDEF wake where degradation due to atomic oxygen bombardment is minimal. The image shows the surfaces immediately after the LDEF arrived in SAEF II and prior to initiation of deintegration operations. The experiments appear intact and in good shape overall. The silver Teflon thermal control material covering the experiment in LDEF positions D01, E02 and F02 appears to have remained specular. The thin film polymer samples, part of the experiment in LDEF position D03, have degraded and remain attached by only one end. The thin film metallized Mylar detector covers on experiment detectors located in LDEF position E03 have degraded significantly with only eleven (11) of the seventy seven (77) covers surviving intact. Note the progressive darkening of the white paint dots on the experiment tray clamp blocks as you scan from row 12 to row 03. The white paint on experiment surfaces in LDEF positions D02, D03 and E12 appears to be discolored with a light brown stain. The color of the scuff plate has changed from a bright caution yellow to a dull and darker yellow. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==Approx. 15 ft. diameter Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-419.17.jpeg Classification==Prelaunch Photo, LaRC #==L84-07237 Photo, JSC #==None Photo, KSC #==KSC-384C-419.17 Photo, PI #==No value in DB Photo, Date Taken==02/06/1984 Photo, Description== A prelaunch photograph taken in the SAEF at KSC with the LDEF on the LDEF Assembly and Transport System provides an overall side view of LDEF Bays A thru F on Rows 2 thru 5 after experiment installation on the LDEF. The green tint of the photograph is the result of the SAEF II mercury vapor overhead lights. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==15 ft. dia x 30 ft. L Photo, Collection==SAEF II Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-419.29.jpeg Classification==Prelaunch Photo, LaRC #==L84-07249 Photo, JSC #==None Photo, KSC #==KSC-384C-419.29 Photo, PI #==No value in DB Photo, Date Taken==02/06/1984 Photo, Description== A prelaunch photograph taken in the SAEF at KSC with the LDEF on the LDEF Assembly and Transport System provides an overall side view of LDEF Bays A thru F on Rows 6 thru 9 after experiment installation on the LDEF. The green tint of the photograph is the result of the SAEF II mercury vapor overhead lights. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==15 ft. dia x 30 ft. L Photo, Collection==SAEF II Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-419.41.jpeg Classification==Prelaunch Photo, LaRC #==L84-07261 Photo, JSC #==None Photo, KSC #==KSC-384C-419.41 Photo, PI #==No value in DB Photo, Date Taken==02/06/1984 Photo, Description== A prelaunch photograph taken in the SAEF at KSC with the LDEF on the LDEF Assembly and Transport System provides an overall side view of LDEF Bays A thru F on Rows 10 thru 1 after experiment installation on the LDEF. The green tint of the photograph is the result of the SAEF II mercury vapor overhead lights. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==15 ft. dia x 30 ft. L Photo, Collection==SAEF II Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-006.jpeg Classification==Flight Photo, LaRC #==L90-10402 Photo, JSC #==S32-77-006 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall view of the LDEF from the V Bar at a range of approximately 590 feet. The view looks into row 9, the LDEF leading edge, with an oblique view of the Earth end. Note the bright yellow color of the trunnion scuff plates. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-060.jpeg Classification==Flight Photo, LaRC #==L90-10482 Photo, JSC #==S32-85-060 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through F on Rows 9 through 1 with the LDEF on the Remote Manipulator System arm. The Orbiter tail structure protudes from the left edge of the photograph. The right side of the photograph is blanked by the frame of the aft flight deck window. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-023.jpeg Classification==Flight Photo, LaRC #==L90-10497 Photo, JSC #==S32-89-023 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to the berthing of LDEF in the Orbiter's cargo bay. The Seeds in Space Experiment (P0004-01) is one of three passive experiments located in a 6-inch deep LDEF peripheral tray. The experiment consist of 2 million seeds of 120 different varieties, one sealed canister, two smaller vented canisters, and a silvered Teflon thermal cover. Two other experiments, the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The paint dots, originally white, located on experiment tray clamp blocks now appear brown. The experiment tray flanges also appear to be discolored. The sealed Seeds in Space Experiment canister, a base portion and a dome portion, was machined from aluminum and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing a volume of approximately 1/3 cubic foot. The two vented canisters were also aluminum. One canister, 4 inches in diameter and 4 inches high, was mounted on the top side of the experiment tray and the other was rectangular in shape and mounted on the bottom side of the tray, the side facing the LDEF interior. The exterior surfaces of all canisters located on the top side of the experiment tray were painted white with Chemglaze II A-276. The exterior surface of the rectangular canister on the bottom side of the experiment tray was coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The silvered Teflon thermal cover appears to be intact with no apparent damage. The three dark spots appearing in a vertical row about a third of a tray width from the right edge of the cover are the locations of three Velcro pads. Photo, Experiment(s) shown==P0004-01 : Seeds in Space Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-299.05.jpeg Classification==Prelaunch Photo, LaRC #==L84-07150 Photo, JSC #==None Photo, KSC #==KSC-384C-299.05 Photo, PI #==No value in DB Photo, Date Taken==01/19/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated experiment tray on the LDEF. The Seeds in Space Experiment (P0004-01) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of 2 million seeds of 120 different varieties, one sealed canister, two smaller vented canisters, and a silvered Teflon thermal cover. Two other experiments, the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The sealed Seeds in Space Experiment canister, a base portion and a dome portion, was machined from aluminum plate and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing a volume of approximately 1/3 cubic foot. The two vented canisters were also aluminum. One canister, 4 inches in diameter and 4 inches high, was mounted on the top side of the experiment tray and the other was rectangular in shape and mounted on the bottom side of the tray, the side facing the LDEF interior. The exterior surfaces of all canisters located on the top side of the experiment tray were painted white with Chemglaze II A-276. The exterior surface of the rectangular canister on the bottom side of the experiment tray was coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The apparent brown discoloration in the approximate center of the silvered Teflon cover is a reflection from the surrounding area and not an actual stain. Photo, Experiment(s) shown==P0004-01 : Seeds in Space Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1465.03.jpeg Classification==Postflight Photo, LaRC #==L91-01553 Photo, JSC #==None Photo, KSC #==KSC-390C-1465.03 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The Seeds in Space Experiment (P0004-01) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of 2 million seeds of 120 different varieties, one sealed canister, two smaller vented canisters, and a silvered Teflon thermal cover. Two other experiments, the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Areas of the experiment tray flanges covered by the tray clamp blocks are unstained and clearly visible. The sealed Seeds in Space Experiment canister, a base portion and a dome portion, was machined from aluminum and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing a volume of approximately 1/3 cubic foot. The two vented canisters were also aluminum. One canister, 4 inches in diameter and 4 inches high, was mounted on the top side of the experiment tray and the other was rectangular in shape and mounted on the bottom side of the tray, the side facing the LDEF interior. The exterior surfaces of all canisters locatd on the top side of the experiment tray were painted white with Chemglaze II A-276. The exterior surface of the rectangular canister on the bottom side of the experiment tray was coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The silvered Teflon thermal cover appears to be intact with no apparent damage. The surroundings reflected in the thermal covers specular surface provides an array of colors including white, browns, silver, red , and aqua. Photo, Experiment(s) shown==P0004-01 : Seeds in Space Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-299.05.jpeg Classification==Prelaunch Photo, LaRC #==L84-07150 Photo, JSC #==None Photo, KSC #==KSC-384C-299.05 Photo, PI #==No value in DB Photo, Date Taken==01/19/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated experiment tray on the LDEF. The Space Exposed Experiment Developed for Students (SEEDS) P0004-02 is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of 12 1/2 million Rutgers tomato seeds, five sealed canisters and a silvered Teflon thermal cover. Two other experiments, the Seeds in Space Experiment (P0004-01) and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The sealed SEEDS canisters, 5 bases and 5 domes, were machined from aluminum plate material and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing an open volume of approximately 1/3 cubic foot in each canister. The 5 canisters were were mounted in the experiment tray along with a similar canister containing the Seeds in Space Experiment. The exterior surfaces of all canisters were painted white with Chemglaze II A-276 and surfaces facing the LDEF interior were coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The apparent brown discoloration in the approximate center of the silvered Teflon cover is a reflection from the surrounding area and not an actual stain. Photo, Experiment(s) shown==P0004-02 : Space-Exposed Experiment Developed for Students Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1465.03.jpeg Classification==Postflight Photo, LaRC #==L91-01553 Photo, JSC #==None Photo, KSC #==KSC-390C-1465.03 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The Space Exposed Experiment Developed for Students (SEEDS) P0004-02 is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of 12 1/2 million Rutgers tomato seeds, five sealed canisters and a silvered Teflon thermal cover. Two other experiments, the Seeds in Space Experiment (P0004-01) and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Areas of the experiment tray flanges covered by the tray clamp blocks are unstained and clearly visible. The sealed SEEDS canisters, 5 bases and 5 domes, were machined from aluminum plate material and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing an open volume of approximately 1/3 cubic foot in each canister. The 5 canisters were were mounted in the experiment tray along with a similar canister containing the Seeds in Space Experiment. The exterior surfaces of all canisters were painted white with Chemglaze II A-276 and surfaces facing the LDEF interior were coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The silvered Teflon thermal cover appears to be intact with no apparent damage. The surroundings reflected in the thermal covers specular surface provide an array of colors including white, browns, silver, red, and aqua. Photo, Experiment(s) shown==P0004-02 : Space-Exposed Experiment Developed for Students Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L-91-1572.jpeg Classification==Postflight Photo, LaRC #==L91-01572 Photo, JSC #==None Photo, KSC #==KSC-390C-1460.02 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF and the silvered Teflon thermal cover was removed from the experiment tray. The Space Exposed Experiment Developed for Students (SEEDS) P0004-02 is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of 12 1/2 million Rutgers tomato seeds, five sealed canisters and a silvered Teflon thermal cover. Two other experiments, the Seeds in Space Experiment (P0004-01) and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Areas of the experiment tray flanges covered by the tray clamp blocks are unstained and clearly visible. The sealed SEEDS canisters, 5 bases and 5 domes, were machined from aluminum plate material and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing an open volume of approximately 1/3 cubic foot in each canister. The 5 canisters were mounted in horizontal rows in the experiment tray along with a similar canister, located in the center of the top row, containing the Seeds in Space Experiment. The exterior surfaces of all canisters were painted white with Chemglaze II A-276 and surfaces facing the LDEF interior were coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads seen on each of the canister domes and on clips attached to the tray sidewalls. The experiment hardware appears intact and in prelaunch condition. The Chemglaze II A-276 white paint has no apparent discolorations. Photo, Experiment(s) shown==P0004-02 : Space-Exposed Experiment Developed for Students Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-023.jpeg Classification==Flight Photo, LaRC #==L90-10497 Photo, JSC #==S32-89-023 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to the berthing of LDEF in the Orbiter's cargo bay. The Linear Energy Transfer (LET) Experiment (P0006) is one of three passive experiments located in a 6-inch deep LDEF peripheral tray. The experiment consist of two types of detectors, thermal luminescence and track type, assembled in a sealed container and a silvered Teflon thermal cover. Two other experiments, the the Seeds in Space Experiment (P0004-01) and the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The paint dots, originally white, located on experiment tray clamp blocks now appear brown. The experiment tray flanges also appear to be discolored. The sealed Linear Energy Transfer (LET) Experiment container was machined from aluminum and assembled together with a Buna-N o-ring seal. The canister, approximately 6 inches in diameter and 4.5 inches high, was mounted on the top side of the experiment tray and painted white with Chemglaze II A-276. Thermal control was accomplished by placing the canister on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the P0004 canister domes and on clips attached to the tray sidewalls. The silvered Teflon thermal cover appears to be intact with no apparent damage. The three dark spots appearing in a vertical row about a third of a tray width from the right edge of the cover are the locations of three Velcro pads. Photo, Experiment(s) shown==P0006 : Linear Energy Transfer Spectrum Measurement Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==6.0 in. dia. x 4.5 in. H Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L-91-1572.jpeg Classification==Postflight Photo, LaRC #==L91-01572 Photo, JSC #==None Photo, KSC #==KSC-390C-1460.02 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF and the silvered Teflon thermal cover was removed from the experiment tray. The Linear Energy Transfer (LET) Experiment (P0006) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of two types of detectors, thermal luminescence and track type, assembled in a sealed container and a silvered Teflon thermal cover. Two other experiments, theSeeds in Space Experiment (P0004-01) and the Space Exposed Experiment Developed for Students (SEEDS) P0004-02. were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Areas of the experiment tray flanges covered by the tray clamp blocks are unstained and clearly visible. The sealed Linear Energy Transfer (LET) Experiment container was machined from aluminum and assembled together with a Buna-N o-ring seal. The container, approximatelt 6 inches in diameter and 4.5 inches high, was the small container mounted to the left on the horizontal centerline of the experiment tray. Thermal control was accomplished by painting the container white with Chemglaze II A-276, placing the container on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the P0004 canister domes and on clips attached to the tray sidewalls. The experiment hardware appears intact and in prelaunch condition. The Chemglaze II A-276 white paint on the container has no apparent discolorations. Photo, Experiment(s) shown==P0006 : Linear Energy Transfer Spectrum Measurement Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==6.0 in. dia. x 4.5 in. H Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1465.03.jpeg Classification==Postflight Photo, LaRC #==L91-01553 Photo, JSC #==None Photo, KSC #==KSC-390C-1465.03 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The Linear Energy Transfer (LET) Experiment (P0006) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of two types of detectors, thermal luminescence and track type, assembled in a sealed container and a silvered Teflon thermal cover. Two other experiments, the Seeds in Space Experiment (P0004-01) and the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Areas of the experiment tray flanges covered by the tray clamp blocks are unstained and clearly visible. The sealed Linear Energy Transfer (LET) Experiment container was machined from aluminum and assembled together with a Buna-N o-ring seal. The canister, approximately 6 inches in diameter and 4.5 inches high, was mounted on the top side of the experiment tray and painted white with Chemglaze II A-276. Thermal control was accomplished by placing the canister on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the P0004 canister domes and on clips attached to the tray sidewalls. The silvered Teflon thermal cover appears to be intact with no apparent damage. The surroundings reflected in the thermal covers specular surface provides an array of colors including white, browns, silver, red, and aqua. Photo, Experiment(s) shown==P0006 : Linear Energy Transfer Spectrum Measurement Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==6.0 in. dia. x 4.5 in. H Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.09.jpeg Classification==Postflight Photo, LaRC #==L90-13454 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dots on clamp blocks at the center of the upper tray flange and at the center of the right flange are now brown. Since this tray is located adjacent to the LDEF's trailing edge, very little, if any, contami- nation has been cleaned away by atomic oxygen impacts. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The finger prints along the edges of the left panel that were observed in the flight photograph are still visible. Those seen previously along the top edges have been washed out by the lighting. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-079.jpeg Classification==Flight Photo, LaRC #==L90-10395 Photo, JSC #==S32-76-079 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dot on the clamp block located at the center of the bottom tray flange to change from their original white color to dark brown. Finger prints observed on the lower tray flange and sidewall indicate the lack of proper preflight handling/cleaning. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. Finger prints seen along all edges of the left debris panel indicate improper preflight handling/cleaning. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-372.05.jpeg Classification==Prelaunch Photo, LaRC #==L84-07210 Photo, JSC #==None Photo, KSC #==KSC-384C-372.05 Photo, PI #==No value in DB Photo, Date Taken==01/26/1984 Photo, Description== The Space Debris Impact Experiment consists of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The pink and/or greenish-gray tints and the vertical stripes on the two debris panels are by-products of the chromic anodize coating process. The black unit with the light stripes and yellow/orange reflectors that is located on the right debris panel is a keel camera target used during berthing of the LDEF and is identical to those attached to the grapple fixture. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-087.jpeg Classification==Flight Photo, LaRC #==L90-10396 Photo, JSC #==S32-76-087 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination caused the paint dot on the clamp blocks located at the centers of the experiment tray upper and left flange to change from their original white color to a light tan on the upper flange and a dark brown on the left flange. The experiment tray left flange appears to be discolored with a brown stain. The Space Debris Impact Experiment consists of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The pink and/or greenish-gray tints and the horizontal stripes on the two debris panels are by-products of the chromic anodize coating process and are not attributed to exposure to the space environment. The blue color component that makes the discolorations on the panels appear more vivid is a reflection of deep space and not a true change in surface color. The brown irregular shaped discolorations along the center edges of the debris panels appear to be fingerprints from prelaunch handling. The black unit located on the top panel is a keel camera target used during the berthing of the LDEF. The color of the stripes and the tip of the vertical rod appear darker than in the prelaunch photograph. The light band across the top panel is reflected light from the tray sidewall and the dark band down the right side of the panels is a shadow from the tray sidewall Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.03.jpeg Classification==Postflight Photo, LaRC #==L90-13448 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.03 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dots on clamp blocks at the centers of the experiment tray top and right flanges are now a light tan while the dot on the clamp block at the left end of the lower flange appears to have changed little in color. The experiment tray flanges and lower sidewall appear discolored with a light tan stain. The Space Debris Impact Experiment consists of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The finger prints along the center edges of the debris panels that were observed in the flight photograph are still visible. The vertical streaks seen on the debris panels appear the same as on the prelaunch photograph. The black unit located on the right panel is a keel camera target used during berthing of the LDEF. The color of the stripes and the tip of the vertical rod appear darker than in the prelaunch photograph. The light band along the right side and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-029.jpeg Classification==Flight Photo, LaRC #==L90-10430 Photo, JSC #==S32-78-029 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the center of the upper tray flange, the center of the right tray flange and the left end of the lower tray flange appear to have changed little from their original white color. A brown discoloration is visible on the experiment tray flanges and sidewalls. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the greenish-gray tint on the two (2) debris panels are by-products of the chromic anodize coating process, however, additional blue can be attributed to reflections of the blue sky. The vertical streaks on the debris panels are by-products of chromic anodizing that have been enhanced by the blue reflection. Brown stains are located along the left edge of the right debris panel. An irregular shaped discoloration extends horizontally across the lower half of the left debris panel. The light band along the vertical edge of the left debris panel and across the top of both debris panels is a reflection from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2163.03.jpeg Classification==Postflight Photo, LaRC #==L91-07828 Photo, JSC #==None Photo, KSC #==KSC-390C-2163.03 Photo, PI #==No value in DB Photo, Date Taken==03/21/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The vertical streaks observed on the right debris panel in the flight photograph are still visible although not as distinct. The irregular shaped discoloration extending horizontally across the left debris panel remains well defined. The light band across the top and bottom of the debris panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consists of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: A12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1066.11.jpeg Classification==Postflight Photo, LaRC #==L90-13480 Photo, JSC #==None Photo, KSC #==KSC-390C-1066.11 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clampblocks around the perifery of the experiment tray show the results of contamination and exposure to the space environment. The variation in color, from off-white along the top flange to different shades of brown at other locations, is attributed to variations in the atomic oxygen flux intensity. Surfaces exposed to a higher atomic oxygen flux will have less contamination due to the scrubbing or cleaning action of the atomic oxygen molecule impacting that surface. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The light bands along the bottom and the left and right edges of the panels are caused by lights reflecting from the tray sidewalls. The two (2) small mounds seen on the panel on the left are manufacturing defects that existed prior to flight. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-026.jpeg Classification==Flight Photo, LaRC #==L90-10429 Photo, JSC #==S32-78-026 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The color of the paint dot on the clamp block located at the top center of the upper tray flange seems unchanged from its orginal white color. Contamination has caused the white paint dots on other tray clamp blocks to turn a light tan color. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep periph- eral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-016.jpeg Classification==Flight Photo, LaRC #==L90-10427 Photo, JSC #==S32-78-016 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dots on the clamp blocks located at the top center of the upper tray flange and at the center of the right and left flanges to change from thier original white color to tan. The greenish-gray tint on the left debris panels and the pink tint on the right debris panel are a by-product of the chromic anodize coating process. The light band along the left side and across the bottom of the panels is caused by light reflecting from the tray sidewalls. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1066.05.jpeg Classification==Postflight Photo, LaRC #==L90-13747 Photo, JSC #==None Photo, KSC #==KSC-390C-1066.05 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks around the perifery of the experiment tray show the results of contamination and exposure to the space environment. The variation in color, from tan along the top flange to brown at other locations, is attributed to variations in the atomic oxygen flux intensity. A surface exposed to a higher intensity of atomic oxygen flux will have less contamination due to the scrubbing or cleaning action that occurs when the atomic oxygen molecules impact that surface. The pink and the greenish-gray tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environ ment. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-105.jpeg Classification==Flight Photo, LaRC #==L90-10400 Photo, JSC #==S32-76-105 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dot on the clamp blocks located at the centers of the upper tray flange and the right tray flange and at the left end of the lower flange to change from their original white color to dark brown. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the greenish-gray tint on the two (2) debris panels is the product of the chromic anodize coating process, however, a large part can be attributed to reflections of the blue sky. The vertical streaks on the panels are products of chromic anodizing that have been enhanced significantly by the blue reflection. Finger prints along the center edges of the right debris panel occurred during experiment assembly and indicate improper preflight handling/cleaning. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1146.03.jpeg Classification==Postflight Photo, LaRC #==L90-13505 Photo, JSC #==None Photo, KSC #==KSC-390C-1146.03 Photo, PI #==No value in DB Photo, Date Taken==02/18/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dots on clamp blocks at the centers of the lower tray flange and the left flange and at the right end of the upper tray flange are now brown. Since the tray location is shielded from the atomic oxygen stream, very little, if any, contamination has been cleaned away by atomic oxygen impacts. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The finger prints along the edges of the left debris panel that were observed in the flight photograph are still visible. The dark vertical streaks seen on the debris panels in the flight photographs are almost invisible since the blue sky reflection is not present. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep periph- eral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-294.07.jpeg Classification==Prelaunch Photo, LaRC #==L84-07116 Photo, JSC #==None Photo, KSC #==KSC-384C-294.07 Photo, PI #==No value in DB Photo, Date Taken==01/01/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF and shows the locations of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The Space Debris Impact Experiment in this location consist of two (2) three sixteenth (3/16) inch thick chromic anodized aluminum panels mounted in the left two thirds (2/3rd) of the integrated tray. The exterior surface has a thin chromic anodize coating and the interior surface is coated with a black thermal control paint, Chemglaze Z-306. The panels are attached to the tray structure with non-magnetic stainless steel fasteners. The pink and/or greenish gray tint is a product of the anodize process. The light band across the top of the panels and along the lower edge of the left panel are reflections from adjacent aluminum surfaces. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L (ea) Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1031.11.jpeg Classification==Postflight Photo, LaRC #==L90-13421 Photo, JSC #==None Photo, KSC #==KSC-390C-1031.11 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The post flight photograph was taken in the SAEF II at KSC prior to removal of the experiment tray from the LDEF and shows the location of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The experiment tray flanges appear to have a light tan discoloration as do the originally white paint dots on the top center and right center tray clamp blocks. The Space Debris Impact Experiment in this location consist of two (2) three sixteenth (3/16) inch thick chromic anodized aluminum panels mounted in the left two thirds (2/3rd) of the integrated tray. The exterior surface has a thin chromic anodize coating and the interior surface is coated with a black thermal control paint, Chemglaze Z-306. The panels are attached to the tray structure with non-magnetic stainless steel fasteners. The pink and/or greenish gray tint is a product of the anodize process and not associated with exposure to the space environment. Most impact craters (small white specks) observed on the flight photograph appear to have been washed out by the photographic lighting intensity and angle. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L (ea) Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-026.jpeg Classification==Flight Photo, LaRC #==L90-10380 Photo, JSC #==S32-76-026 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay and shows the locations of three LDEF experiments integrated into a three (3) inch deep LDEF peripheral tray. The experiment tray flanges appear to have a light tan discoloration as do the originally white paint dots on the top center and right center tray clamp blocks. Irregular shaped darker discolorations are visible on the inside of the left tray flange. The Space Debris Impact Experiment in this location consists of two (2) three sixteenth (3/16) inch thick chromic anodized aluminum panels mounted in the left two thirds (2/3rd) of the integrated tray. The exterior surface has a thin chromic anodize coating and the interior surface is coated with a black thermal control paint, Chemglaze Z-306. The panels are attached to the tray structure with non-magnetic stainless steel fasteners. The pink and/or greenish gray tint is a product of the anodize process and not associated with exposure to the space environment. Multiple impact craters (small white specks) are visible on both Debris panel surfaces. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==16.38 in. W x 18.62 in. L (ea) Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1028.07.jpeg Classification==Postflight Photo, LaRC #==L90-13381 Photo, JSC #==None Photo, KSC #==KSC-390C-1028.07 Photo, PI #==No value in DB Photo, Date Taken==03/21/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the left end of the lower tray flange and at the center of the upper and right tray flanges have changed slightly to an off-white color. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The dark streaks observed on the right debris panel in the flight photograph are no longer visible since the blue sky reflection is not present. However, the light irregular shaped discoloration observed on the left debris panel starting near the center of the left edge is clearly seen. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep periph- eral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-038.jpeg Classification==Flight Photo, LaRC #==L90-10133 Photo, JSC #==S32-78-038 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the center of the upper tray flange, the center of the right tray flange and the left end of the lower tray flange have changed little from their original white color. The discolorations on the lower left experiment tray sidewall appear to be fingerprints from prelaunch handling. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the pink and greenish-gray tint on the two (2) debris panels are by-products of the chromic anodize coating process, however, part of the intensity can be attributed to reflections of the blue sky. The vertical streaks on the right debris panel are by-products of chromic anodizing that have been enhanced by the blue reflection. A light irregular shaped discoloration is visible on the left debris panel, starting near the center of the left edge and progressing down and to the right. The light band along the vertical edge of the left debris panel is a reflection from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: B11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-832.05.jpeg Classification==Postflight Photo, LaRC #==L90-13352 Photo, JSC #==None Photo, KSC #==KSC-390C-832.05 Photo, PI #==No value in DB Photo, Date Taken==03/05/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp block at the center of the bottom tray flange and at the two (2) top corners of the top tray flange are dark brown. Since this tray is located adjacent to the LDEF's trailing edge, very little, if any, contamination has been cleaned away by atomic oxygen impacts. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The smudges on the panels along the top center of the tray are the results of improper cleaning after panel installation. The light band along the sides and across the top of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: C04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-031.jpeg Classification==Flight Photo, LaRC #==L90-10408 Photo, JSC #==S32-77-031 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dots on the clamp blocks located at the top center of the upper tray flange and at the center of the right and left flanges to change from their original white color to dark brown. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The greenish-gray tint on the debris panels is a by-product of the chromic anodize coating process. The dark green smudge along the top right edge of the left debris panel is the results of improper cleaning after prelaunch handling. The dark band across the bottom of the panels is caused by a shadow from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: C04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photo- graph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: C04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep periph- eral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: C07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Flight Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: C07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1032.05.jpeg Classification==Postflight Photo, LaRC #==L90-13427 Photo, JSC #==None Photo, KSC #==KSC-390C-1032.05 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the center of the upper tray flange and at each end of the bottom tray flange are an off-white or light tan color. Paint on the clamp blocks located at each end of the lower tray flange has been exposed to a greater atomic oxygen flux than paint on the upper flange clamp block and appears to be less contaminated and therefore brighter. The pink and the greenish-gray tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The two (2) white spots in the lower left quadrant of the left debris panel appear to be debris impact craters. The light band along the right side and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: C07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-731.11.jpeg Classification==Postflight Photo, LaRC #==L92-17662 Photo, JSC #==None Photo, KSC #==KSC-390C-731.11 Photo, PI #==No value in DB Photo, Date Taken==02/01/1990 Photo, Description== The postflight photograph of the integrated tray (D02) was taken in the Operations and Checkout (O&C) building after the LDEF was transferred from the KSC Payload Canister to the LDEF Assembly and Transport System (LATS). The Space Debris Impact Experiment has many impact craters that can be seen on the detector panels. The craters show as white dots against the brownish/gray surface color of the detector panels. The faint pink and green tints on the detector panel surface were produced during the chromic anodize process and are not a result of exposure to the space environment. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==O & C Low Bay Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-317.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07158 Photo, JSC #==None Photo, KSC #==KSC-384C-317.01 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The Space Debris Impact Experiment consist of two (2) chromic anodized aluminum panels that are located in the other two thirds (2/3rd) of the experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-013.jpeg Classification==Flight Photo, LaRC #==L90-10495 Photo, JSC #==S32-89-013 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken after the LDEF was retrieved and prior to berthing in the orbiter cargo bay. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The panels appear to have a light tan tint when compared to the pre-launch photograph. The debris panels are mounted in the bottom of the tray and the shadow of the tray sides appears as a dark border along the right side and bottom edges of the panels. No impact craters are visible under the existing lighting conditions. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: D02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.10.jpeg Classification==Postflight Photo, LaRC #==L90-13440 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.10 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph, taken prior to removal of the experiment trays from the LDEF, again shows a significant difference in the color of the paint dots on the experiment tray clamp blocks. The direction and intensity of the artifical light source has caused hot spots and reflections that tend to wash-out the brown stain on the aluminum structure. The Space Debris Impact Experiment panels have a clean washed-out look that is attributed to the lighting. The center panel has a pink tint and the end panel has a green tint as they appeared in the pre-launch photograph. The finger prints seen on the flight photograph are not visible but a faint shadow of the palm print can be seen. With the change in direction of the light source, the panel serial numbers and the location of impacts can not be determined. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: D06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-044.jpeg Classification==Flight Photo, LaRC #==L90-10455 Photo, JSC #==S32-82-044 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight/on-orbit photograph of the D06 integrated tray was taken from the Orbiter aft flight deck during the LDEF retrieval, while the spacecraft was attached to the remote manipulator system. During the mission, the tray surface was at an angle of approximately eighty-two (82) degrees to the orbital velocity vector and therefore exposed to a higher atomic oxygen flux than if it had been parallel with the velocity vector. Note the difference in color of the paint dots on tray clampblocks; white dots along the top edge, a light tan color on the center dot and a dark brown stain on the dots along the bottom of the photograph. The dots near the top of the photograph are adjacent to experiment location D07 and are exposed to a higher atomic oxygen flux than those adjacent to experiment location D05. Impacts of atomic oxygen with a surface tends to scrub away contamination from the that surface and leave it a much cleaner. The two (2) Space Debris Impact Experiment detector plates, located in the center and left end sections of a three (3) inch deep experiment tray, show fingerprints and a palm print that occurred during installation of the panels into the tray. These prints are not visible on the prelaunch photograph. The light angle is such that the panel serial numbers, stamped in the upper left corner of the each panel, can be seen. The grazing light angle also makes numerous impact craters visible that would not be easily detectible if the light source was perpendicular to the tray surface. When comparing the flight photograph with the prelaunch photograph, A switch in panel colors can be seen. The flight tray has a center section panel with a green tint and an end section panel with a pink tint. The opposite is seen in the prelaunch tray photograph. The center section panel has the pink tint and the end section panel is pale green. No definitive answer has been determined for the visual changes. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: D06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-15.10.jpeg Classification==Prelaunch Photo, LaRC #==L84-07024 Photo, JSC #==None Photo, KSC #==KSC-384C-15.10 Photo, PI #==No value in DB Photo, Date Taken==01/09/1984 Photo, Description== The Space Debris experiment consist of two (2) one third (1/3rd) tray anodized aluminum detector plates. The chromic anodize on the experiment detector plate is not an experiment requirement but is used as a major contributor to the passive thermal control of the LDEF. The green and/or pink tint seen on the detector plates is produced by the chromic anodizing process and has no impact on the experiment objectives or data analyses. The Space Debris experiment is mounted to the aluminum tray structure with nonmagnetic fasteners. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: D06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1066.08.jpeg Classification==Postflight Photo, LaRC #==L90-13477 Photo, JSC #==None Photo, KSC #==KSC-390C-1066.08 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks around the periphery of the experiment tray show the results of contamination and exposure to the space environment. The variation in color, from off-white along the top flange to brown at other locations, is attributed to variations in the atomic oxygen flux intensity. A surfaces exposed to a higher intensity of atomic oxygen flux will have less contamination due to the scrubbing or cleaning action that occurs when the atomic oxygen molecules impact that surface. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The light band along the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-010.jpeg Classification==Flight Photo, LaRC #==L90-10426 Photo, JSC #==S32-78-010 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The color of the paint dot on the clamp block located at the top right of the upper tray flange has changed to a light tan from its orginal white color. Contamination has caused the white paint dot on another tray clamp block, center left, to turn brown. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The light color band across the top of the panels is a reflection from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-832.03.jpeg Classification==Postflight Photo, LaRC #==L90-13350 Photo, JSC #==None Photo, KSC #==KSC-390C-832.03 Photo, PI #==No value in DB Photo, Date Taken==02/07/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp block at the center of the left tray flange and at the right end of the upper tray flange are dark brown. Since this tray is located adjacent to the LDEF's trailing edge, very little, if any, contamination has been cleaned away by atomic oxygen impacts. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The finger prints along the bottom edge of the panels that was observed in the flight photograph are still visible. Those seen previously along the top edges have been washed out by the lighting. The light band along the sides and across the top of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-048.jpeg Classification==Flight Photo, LaRC #==L90-10412 Photo, JSC #==S32-77-048 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dots on the clamp blocks located at the right end of the upper tray flange and at the center of the left flange to change from their original white color to dark brown. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. Finger prints can be seen along the top and bottom edge of the panels indicating improper handling/cleaning after panel assembly. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-032.jpeg Classification==Flight Photo, LaRC #==L90-10460 Photo, JSC #==S32-82-032 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dot on the clamp blocks located at the centers of the left tray flange the lower flange to change from their original white color to an off-white. The discolorations on the lower tray sidewall appear to be fingerprints from handling during experiment assembly. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the pink and greenish-gray tint on the two (2) debris panels are a by-product of the chromic anodize coating process, however, a part of the intensity can be attributed to reflections of the blue sky. The horizontal streaks on the left debris panel and the vertical streaks on the right debris panel are by-products of chromic anodizing that have been enhanced significantly by the blue reflection. The fingerprints along the lower edge of the debris panels are from handling during experiment assembly. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1032.03.jpeg Classification==Postflight Photo, LaRC #==L90-13425 Photo, JSC #==None Photo, KSC #==KSC-390C-1032.03 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the center of the upper tray flange and at each end of the bottom tray flange are an off-white or light tan color. Paint on the clamp block located at the center of the lower tray flange has been exposed to a greater atomic oxygen flux than paint on the clamp block located at the center of the left flange and appears to be less contaminated and therefore brighter. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The streaks on the debris panels in the flight photographs are almost invisible since the blue sky reflection is not present. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-053.jpeg Classification==Flight Photo, LaRC #==L90-10436 Photo, JSC #==S32-78-053 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the center of the lower tray flange, the center of the left tray flange and the right end of the upper tray flange have changed little from their original white color. Discolorations are visible on the upper, left side and lower experiment tray flanges. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the pink and greenish-gray tint on the two (2) debris panels are by-products of the chromic anodize coating process, however, part of the intensity can be attributed to reflections of the blue sky. The vertical streaks on the debris panel are by-products of chromic anodizing that have been enhanced by the blue reflection. The light band along the vertical edge of the left debris panel is a reflection from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1028.04.jpeg Classification==Postflight Photo, LaRC #==L90-13378 Photo, JSC #==None Photo, KSC #==KSC-390C-1028.04 Photo, PI #==No value in DB Photo, Date Taken==03/21/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the left end of the lower tray flange and at the center of the upper and right tray flanges have changed slightly to an off-white color. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The vertical streaks observed on the debris panels in the flight photograph are no longer visible since the blue sky reflection is not present. Debris from other experiments, significantly degraded during the mission, are visible on the lower experiment tray sidewall at its intersection with the lower edge of the debris panels. Other experiment debris, visible as dark specks, can be seen at the intersection of the debris panel outer edges and the tray sidewalls. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: E11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1066.07.jpeg Classification==Postflight Photo, LaRC #==L90-13476 Photo, JSC #==None Photo, KSC #==KSC-390C-1066.07 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks around the perifery of the experiment tray show the results of contamination and exposure to the space environment. The variation in color, from off-white along the top flange to brown at other locations, is attributed to variations in the atomic oxygen flux intensity. A surface exposed to a higher intensity of atomic oxygen flux will have less contamination due to the scrubbing or cleaning action that occurs when the atomic oxygen molecules impact that surface. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The dark vertical streaks seen on the left debris panel in the flight photographs are still visi- ble, but are much lighter since the blue sky reflection is not present. The same can be said for the two (2) discolorations, they are still visible but much lighter. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-036.jpeg Classification==Flight Photo, LaRC #==L90-10432 Photo, JSC #==S32-78-036 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The color of the paint dot on the clamp block located at the top right of the upper tray flange has changed to a light tan from its orginal white color. Contamination has caused the white paint dot on another tray clamp block, center left, to turn brown. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the greenish-gray tint on the two (2) debris panels are the by-product of the chromic anodize coating process, however, a large part can be attributed to reflections of the blue sky. The vertical streaks seen in the panel on the left are by-products of chromic anodizing that have been enhanced significantly by the blue reflection. Two (2) darker blue horizontal discolorations are visible near the vertical center of each panel. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F01 - Orientation: 111.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-833.08.jpeg Classification==Postflight Photo, LaRC #==L90-13367 Photo, JSC #==None Photo, KSC #==KSC-390C-833.08 Photo, PI #==No value in DB Photo, Date Taken==02/07/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp block at the center of the left tray flange and at the center of the bottom tray flange is dark brown. Since this tray is located on LDEF's trailing edge, no contamination has been cleaned away by atomic oxygen impacts. The pink and the greenish-gray tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Flight Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1909 Photo, Description==NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-045.jpeg Classification==Flight Photo, LaRC #==L90-10411 Photo, JSC #==S32-77-045 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. A combination of the space environment and contamination has caused the paint dot on the clamp blocks located at the centers of the upper tray flange and the right tray flange and at the left end of the lower flange to change from their original white color to dark brown. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. Finger prints seen along the center edges of the debris panels indicate improper preflight handling/cleaning. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.04.jpeg Classification==Postflight Photo, LaRC #==L90-13449 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.04 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dots on clamp blocks at the centers of the lower tray flange and the left flange and at the right end of the upper tray flange are now brown. Since the tray location is shielded from the atomic oxygen stream, very little, if any, contamination has been cleaned away by atomic oxygen impacts. The greenish-gray and pink tints on the two (2) debris panels are a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The finger prints along the center edges of the debris panels that were observed in the flight photograph are still visible. The light band across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1032.02.jpeg Classification==Postflight Photo, LaRC #==L90-13424 Photo, JSC #==None Photo, KSC #==KSC-390C-1032.02 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the right end of the upper tray flange and at the center of the bottom and left tray flanges have changed slightly. Paint on the clamp block located at the center of the lower tray flange has been exposed to a greater atomic oxygen flux than paint on the clamp blocks located at the center of the left flange and at the right end of the upper flange and appears to be less contaminated and therefore brighter. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The streaks on the debris panels in the flight photographs are almost invisible since the blue sky reflection is not present. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-026.jpeg Classification==Flight Photo, LaRC #==L90-10459 Photo, JSC #==S32-82-026 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the center of the right tray flange and at the left end of the lower flange have changed little from their original white color. The discolorations on the upper tray sidewall appear to be fingerprints from handling during experiment assembly. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the pink and greenish-gray tint on the two (2) debris panels are a by-product of the chromic anodize coating process, however, a part of the intensity can be attributed to reflections of the blue sky. The horizontal streaks on the right debris panel and the vertical streaks on the left debris panel are by-products of chromic anodizing that have been enhanced by the blue reflection. The light band along the vertical edge of the debris panel is a reflection from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F07 - Orientation: 68.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1655.07.jpeg Classification==Postflight Photo, LaRC #==L91-11492 Photo, JSC #==None Photo, KSC #==KSC-390C-1655.07 Photo, PI #==No value in DB Photo, Date Taken==03/06/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the right end of the upper tray flange and at the center of the bottom and left tray flanges have changed slightly to an off-white color. The green tint on the two (2) debris panels is a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. A light colored irregular shaped vertical streak is seen on the right debris panel. The light band across the top and bottom edges of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Flight Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description==NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L94-6744.jpeg Classification==Prelaunch Photo, LaRC #==L94-06744 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==09/27/1994 Photo, Description== The Space Debris Impact Experiment consist of two (2) three sixteenth (3/16th) inch thick chromic anodized aluminum panels mounted in a three (3) inch deep peripheral LDEF experiment tray. The side of the panels exposed to the LDEF interior are painted black with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph shown is a photograph of a spare flight Debris experiment tray and is used as a prototype for descriptive purposes only. An individual photograph of each Debris Experiment tray was not taken prior to installation of the tray on the LDEF. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1028.03.jpeg Classification==Postflight Photo, LaRC #==L90-13377 Photo, JSC #==None Photo, KSC #==KSC-390C-1028.03 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks at the right end of the upper tray flange and at the center of the lower and left tray flanges have changed slightly to an off-white color. The pink and the greenish-gray tints on the two (2) debris panels are by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The vertical streaks observed on the right debris panel in the flight photograph are no longer visible since the blue sky reflection is not present. Debris from other experiments, significantly degraded during the mission, are visible on the lower experiment tray sidewall at its intersection with the right tray sidewall. A larger piece is located in the upper right corner on the right debris panel. Other experiment debris, visible as dark specks, can be seen at the intersection of the debris panel outer edges and the tray sidewalls. The light band along the sides and across the bottom of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-069.jpeg Classification==Flight Photo, LaRC #==L90-10441 Photo, JSC #==S32-78-069 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the center of the lower tray flange, the center of the left tray flange and the right end of the upper tray flange appear to have changed little from their original white color. A discolorations is visible on the lower half of the right experiment tray flange. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non- magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. A portion of the greenish-gray tint on the two (2) debris panels are by-products of the chromic anodize coating process, however, additional blue can be attributed to reflections of the blue sky. The vertical streaks on the right debris panel are by-products of chromic anodizing that have been enhanced by the blue reflection. The brown stains along the top edge of the right debris panel appear to be fingerprints from prelaunch handling. Light colored spots or discolorations are along the left side of the right debris panel. The light band along the vertical edge of the left debris panel is a reflection from the tray sidewall. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: F11 - Orientation: 51.9 degrees off ram incidence angle Photo, Scale==37.50 in. W x 49.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2309.11.jpeg Classification==Postflight Photo, LaRC #==L91-11626 Photo, JSC #==None Photo, KSC #==KSC-390C-2309.11 Photo, PI #==No value in DB Photo, Date Taken==03/26/1990 Photo, Description== The Space Debris Impact Experiment con sist of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze #9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The photograph was taken in SAEF II at the KSC after the experiment was removed from the LDEF. The light pink tint of the debris panel is a by-product of the chromic anodize coating pro cess and not attributed to contamination and/or exposure to the space environment. A brown stain is located in the lower right corner of the tray. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: G04 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Flight Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==No value in DB Photo, Description== The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF exper iment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute sig nificantly to thermal control of the LDEF spacecraft. NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: G04 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==N. A. Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Prelaunch Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==No value in DB Photo, Description== The Space Debris Impact Experiment consist of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF exper iment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: G04 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==N. A. Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-286.jpeg Classification==Postflight Photo, LaRC #==L92-21193 Photo, JSC #==S32-S-286 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing Interstellar Gas Experiment photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. A very light contamination stain is present on the experiment tray flanges and on the most of the visible LDEF structure. The exception being the darker stain on the structure adjacent to thermal covers that provide venting for the LDEF interior. Both paint dots appear to be heavily coated with the brown contamination stain. The color of the white thermal control paint on the IGE has changed and now varies from off-white to a dark brown. The darker brown areas on the experiment baseplate, around the grid voltage cable connectors, appear to have come from contaminants flowing from inside the LDEF. A dark stain area can be seen on the lower half of the tray's left sidewall and in the lower left corner of the tray. A lighter stain coats portions of the experiment baseplate and the outside of the canister housing. A beryllium copper collector foil is clearly visible in the upper left canister housing as are the baffles and reflected light from the fine wire mesh grid near the top of the canister housing. Due to an experiment system malfunction, the canister collector foils that are visible were exposed for the total mission. Photo, Experiment(s) shown==AO038 : Interstellar Gas Experiment Associated Tray(s)==Tray Location: H09 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2308.09.jpeg Classification==Postflight Photo, LaRC #==L91-11669 Photo, JSC #==None Photo, KSC #==KSC-390C-2308.09 Photo, PI #==No value in DB Photo, Date Taken==03/26/1990 Photo, Description== The Space Debris experiment consist of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The postflight photograph was taken in SAEF II at the KSC after the experiment was removed from the LDEF. A light tan discoloration can be seen on the right tray flange and the lower tray flange not covered by the experiment tray clamp blocks. Irregular shaped tan discolorations are also visible on the lower experiment tray sidewall. The pink tint on the debris panel is a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. The light colored spots on the debris panel are from the same abrasions observed on the flight photograph. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: G08 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-077.jpeg Classification==Flight Photo, LaRC #==L90-10394 Photo, JSC #==S32-76-077 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the experiment tray clamp blocks appear to be discolored by a dark stain. The experiment tray flanges also appear to be stained but by a much lighter brown discoloration. The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The darkness of the color in the left section of the debris panel is attributed to the lighting although the panel appears to have a light discoloration. The scrapes and scratch marks are from preflight handling and not mission related. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: G08 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Prelaunch Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==No value in DB Photo, Description== The Space Debris experiment consist of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute sig nificantly to thermal control of the LDEF spacecraft. NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: G08 - Orientation: Earth-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==N. A. Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-064.jpeg Classification==Flight Photo, LaRC #==L90-10370 Photo, JSC #==S32-75-064 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Space Debris Impact Experiment consists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The color of the paint dots on the experiment tray clamp blocks, orginally white, show a tan stain that gets darker near the venting area of the end thermal panels. The stain also covers the top and left flanges of the experiment tray and to a lesser degree, the lower and left tray flanges. Light colored discolorations are located near the left of the debris panel. The vertical lines and the pinkish color of the debris panel are chromic anodize coating by products and not attributed to contamination and/or exposure to the space environment. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: H05 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Prelaunch Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==No value in DB Photo, Description==The Space Debris Impact Experiment consist of a three sixteenth (3/16) inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z 306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the alumi num tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, con tribute significantly to thermal control of the LDEF spacecraft. NO INDIVIDUAL PHOTOGRAPH Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: H05 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==N. A. Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-293.jpeg Classification==Postflight Photo, LaRC #==L92-21200 Photo, JSC #==S32-S-293 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The Space Debris Impact Experiment consists of a three sixteenth (3/16) inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF inte rior, contribute significantly to thermal control of the LDEF spacecraft. The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. The color of the paint dots on the experiment tray clamp blocks, originally white, show a tan stain that gets darker near the venting area of the end thermal panels. The stain also covers the top and left experiment tray flanges and to a lesser degree, the lower and right tray flanges. The discolorations on the tray sidewalls appear to be fingerprints enhanced by the brown stain. Light colored discolorations are located near the left side of the debris panel. The vertical lines and the pinkish tint of the debris panel are chromic anodize coat ing by-products and not attributed to contamination and/or exposure to the space environment. Darker discolorations on the debris panel, similar to water marks, are apparent in the photo graph. Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: H05 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-001.jpeg Classification==Flight Photo, LaRC #==L90-10374 Photo, JSC #==S32-76-001 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval prior to berthing the LDEF in the Orbiter cargo bay and shows the locations of two (2) LDEF experiments integrated into a six (6) inch deep LDEF peripheral tray. A brown discoloration is seen along the left half of the lower tray flange and also on the right half of the lower sidewall. The Experiment Exposure Control Canister (EECC), located in the lower section of the experiment tray, has a dark brown discoloration on the mounting structure in the bottom of the tray. Top and lower flanges appear to have very light discoloration and also have abrasions from prelaunch testing. The Exposure of Spacecraft Coatings Experiment (ESC) consist of two parts, one set of test specimen (49-2cm specimen and 12-4cm specimen) located in the lower right half of the tray center section and the second set of test specimen (98-2cm specimen and 12-4cm specimen) located in the EECC. Both sets of specimen are mounted in aluminum base plates and are partially masked by a thin aluminum cover plate with circular openings. The cover plates and the support structure are assembled with non-magnetic fasteners. Some exposed specimen coatings have changed colors and three of the larger (4cm) specimen appear to be severely degraded or missing. The EECC is in the closed position and specimen contained within cannot be viewed. The visible parts of the canister consist of the larger anodized aluminum thermal cover attached to the canister body and sun shield attached to the canister drawer faceplate. The silver squares on the lower corners of the canister sun shield are pads of tape installed prior to launch. Photo, Experiment(s) shown==S0010 : Exposure of Spacecraft Coatings Associated Tray(s)==Tray Location: B09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.38 in. W x 32.88 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-59.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07027 Photo, JSC #==None Photo, KSC #==KSC-384C-59.01 Photo, PI #==No value in DB Photo, Date Taken==01/17/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF and shows the locations of two (2) LDEF experiments integrated into a six (6) inch deep LDEF peripheral tray. The Exposure of Spacecraft Coatings Experiment (ESC) consist of two parts, one set of test specimen (49-2cm specimen and 12-4cm specimen) located in the upper right-half of the tray center section and the second set of test specimen (98-2cm specimen and 12-4cm specimen) in an Experiment Exposure Control Canister (EECC) located in the right section of the experiment tray. Both sets of specimen are mounted in aluminum base plates and are partially masked by a thin aluminum cover plate with circular openings. The cover plates and the support structure are assembled with non-magnetic fasteners. The EECC is in the closed position and specimen contained within cannot be seen. The visible parts of the canister consist of the larger anodized aluminum thermal cover attached to the canister body and sun shield attached to the canister drawer faceplate. The silver squares on the lower corners of the canister sun shield are pads of tape installed prior to launch. Photo, Experiment(s) shown==S0010 : Exposure of Spacecraft Coatings Associated Tray(s)==Tray Location: B09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.12 in. W x 36.30 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1913.09.jpeg Classification==Postflight Photo, LaRC #==L91-02536 Photo, JSC #==None Photo, KSC #==KSC-390C-1913.09 Photo, PI #==No value in DB Photo, Date Taken==03/13/1990 Photo, Description== The postflight photograph was taken in SAEF II after the experiment tray was removed from the LDEF and shows the locations of two (2) experiments integrated into a six (6) inch deep LDEF peripheral tray. A brown discoloration is seen at the top end of the tray's left flange and also on the lower half of the tray's left sidewall. The Experiment Exposure Control Canister (EECC), located in the left section of the experiment tray, has a dark brown discoloration on the mounting structure in the bottom of the tray. The tray's right and left flanges and each end of the top flange have abrasions from prelaunch testing. The Exposure of Spacecraft Coatings Experiment (ESC)experiment consist of two parts, one set of test specimen (49-2cm specimen and 12-4cm specimen) located in the lower left half of the tray center section and the second set of test specimen (98-2cm specimen and 12-4cm specimen) located in the EECC. Both sets of specimen are mounted in aluminum base plates and are parially mask by a thin aluminum cover plate with circular openings. The cover plates and the sup- port structure are assembled with non-magnetic fasteners. Some exposed specimen coatings have changed colors and three of the larger (4cm) specimen appear to be severely degraded or missing. The EECC is in the closed position and specimen contained within cannot be viewed. The visible parts of the canister consist of the larger anodized aluminum thermal cover attached to the canister body and sun shield attached to the canister drawer faceplate. The silver squares on the lower corners of the canister sun shield are pads of tape installed prior to launch. Photo, Experiment(s) shown==S0010 : Exposure of Spacecraft Coatings Associated Tray(s)==Tray Location: B09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==16.12 in. W x 36.30 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-090.jpeg Classification==Flight Photo, LaRC #==L90-10449 Photo, JSC #==S32-78-090 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to the berthing of LDEF in the Orbiter's cargo bay. The Advanced Photovoltaic Experiment (APEX) is an active experiment completely self-contained in a 12 inch deep LDEF peripheral tray. The APEX includes 155 solar cells permanently mounted on 127 removable aluminum plates of 12 different sizes, an Eppley Type HF cavity radiometer, a Digital Solar Angle Sensor, a dichroic mirror assembly, a 'night' or dark sensor, a row of 16 bandpass filters clamped over silicon solar cell sensors, two ultraviolet exposure monitors and two solar concentrator cells with deposited aluminum (on Kapton and Mylar foil) mirrors. An aluminum sub-structure provides a mounting surface for experiment components and controls the field of view of solar cells. Two separate electronic systems and power sources were included, one for the experiment and data acquisition and one, the Experiment Power and Data System (EPDS), for data processing and storage. The experiment structure was painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer and assembled with non-magnetic stainless steel fasteners. The tray flanges and tray clamp blocks appear as prelaunch but white paint dots on tray clamp blocks have a slight variation in color. The paint color on the upper-left clamp block is white, but paint on the right-center and lower-center clamp blocks is lightly discolored. The APEX has a number of physical changes that are apparent. The Chemglaze Z-306 black paint on the exposed surfaces have degraded badly leaving the Chemglaze 9924 primer , a redish-brown color, clearly visible. The difference in the amount of paint remaining may be a function of initial paint thickness, as the plate covering the tray's center section was painted at a different time than the other two plates. The small gold colored rectangular plate in the upper right section of the tray, was fabricated from an aluminum alloy and coated with a clear anodize. A light brown discoloration can be seen on the solar cell mounting plates and on areas of the aluminum base structure. The solar concentrator cells, located at the right end of the second slot from the top, appear to be damaged or a large piece of debris has lodged in the slot. Structural members of the experiment appear to be intact. Photo, Experiment(s) shown==S0014 : Advanced Photovoltaic Experiment Associated Tray(s)==Tray Location: E09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.01.jpeg Classification==Prelaunch Photo, LaRC #==L84-07059 Photo, JSC #==None Photo, KSC #==KSC-384C-193.01 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Advanced Photovoltiac Experiment (APEX) is an active experiment completely self contained in a 12 inch deep LDEF peripheral tray. The APEX experiment includes 155 solar cells permanently mounted on 127 removable aluminum plates of 12 different sizes, an Eppley Type HF cavity radiometer, a Digital Solar Angle Sensor, a dichroic mirror assembly, a night or dark sensor, a row of 16 bandpass filters clamped over silicon solar cell sensors, two ultraviolet expo- sure monitors and two concentrator cells with deposited aluminum (on Kapton and Mylar foil) mirrors. An aluminum sub-structure provides a mounting surface for experiment components and controls the field of view of solar cells. Two separate electronic systems and power sources were included, one for the experiment and data acquisition and one, the Experiment Power and Data System (EPDS), for data processing and storage. The experiment structure was painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer and assembled with nonmagnetic stainless steel fasteners. Photo, Experiment(s) shown==S0014 : Advanced Photovoltaic Experiment Associated Tray(s)==Tray Location: E09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1840.10.jpeg Classification==Postflight Photo, LaRC #==L91-10676 Photo, JSC #==None Photo, KSC #==KSC-390C-1840.10 Photo, PI #==No value in DB Photo, Date Taken==03/12/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The Advanced Photovoltiac Experiment (APEX) is an active experiment completely self contained in a 12 inch deep LDEF peripheral tray. The APEX includes 155 solar cells permanently mounted on 127 removable aluminum plates of 12 different sizes, an Eppley Type HF cavity radiometer, a Digital Solar Angle Sensor, a dichroic mirror assembly, a night or dark sensor, a row of 16 bandpass filters clamped over silicon solar cell sensors, two ultraviolet exposure monitors and two solar concentrator cells with deposited aluminum (on Kapton and Mylar foil) mirrors. An aluminum sub-structure provides a mounting surface for experiment components and controls the field of view of solar cells. Two separate electronic systems and power sources were included, one for the experiment and data acquisition and one, the Experiment Power and Data System (EPDS), for data processing and storage. The experiment structure was painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer and assembled with non-magnetic stainless steel fasteners. The tray flanges and tray clamp blocks appear as prelaunch but white paint dots on tray clamp blocks have a slight variation in color. The paint color on the upper-left clamp block is white, but paint on the right-center and lower-center clamp blocks is lightly discolored. The APEX has a number of physical changes that were observed in the flight photograph. The extent of degradation to the Chemglaze Z-306 black paint on exposed surfaces is clearer as evidenced by the amount of Chemglaze 9924 primer , a redish-brown color, visible. The difference in the amount of paint remaining may be a function of initial paint thickness, as the plate covering the tray's center section was painted at a different time than the other two plates. The small gold colored rectangular plate in the lower-right section of the tray, was fabricated from an aluminum alloy and coated with a clear anodize. A light brown discoloration can be seen on the solar cell mounting plates and on areas of the aluminum base structure. A solar concentrator cell, located at the lower end of the second slot from the right, appears to be damaged. The large piece of gold colored material lodged in the slot appears to be a segment of the aluminum deposited on Kapton mirror. Structural members of the experiment appear to be intact. Photo, Experiment(s) shown==S0014 : Advanced Photovoltaic Experiment Associated Tray(s)==Tray Location: E09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.05.jpeg Classification==Postflight Photo, LaRC #==L90-13450 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.05 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The Active Optical System Component Experiment (S0050) contained 136 test specimen located in a six (6) inch deep LDEF peripheral experiment tray. The complement of specimen included optical and electro-optical components, glasses and samples of various surface finishes. The experiment tray was divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen were typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections were covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two sub-experiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and two secondary experiments,The Holographic Data Storage Experiment (AO044) consisting of four crystals of lithium niobate and ThePyroelectric Infrared Detectors Experiment (AO135) with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. The excess blue color in the flight photograph is no longer present. The paint dots on the tray clamp blocks, initially white, are brown and tray flanges appear to have a light tan discoloration. The experiment sun screens and base plate also appear to have the same discoloration. The exposed experiment test specimen and their fiberglass-epoxy mountings appear to have survived the mission. The fiberglass-epoxy mounting strip colors have changed from the typical greenish-gray to a slate gray and the colors of the test specimen appear to be much darker than in the prelaunch photograph. Photo, Experiment(s) shown==S0050 : Investigation of the Effects of Long-Duration Exposure on Active Optical System Components Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2114.03.jpeg Classification==Postflight Photo, LaRC #==L91-10508 Photo, JSC #==None Photo, KSC #==KSC-390C-2114.03 Photo, PI #==No value in DB Photo, Date Taken==03/20/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC after the experiment tray was removed from the LDEF and the sun screens removed. The Active Optical System Component Experiment (S0050) contained 136 test specimen located in a six (6) inch deep LDEF peripheral experiment tray. The complement of specimen included optical and electro-optical components, glasses and samples of various surface finishes. The experiment tray was divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen were typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections were covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two sub-experiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and two secondary experiments,The Holographic Data Storage Experiment (AO044) consisting of four crystals of lithium niobate and ThePyroelectric Infrared Detectors Experiment (AO135) with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. A brown discoloration is clearly visible on the tray flanges. The location of experiment test specimen and their mountings are shown in this photograph. The fiberglass-epoxy mounting strip colors vary from the typical greenish-gray to a slate gray in proportion to their exposure. The red material on top of the aluminum support structure is a silicone rubber gasket between the sun screen and the structure. The gasket material missing adhered to the sun screens. Photo, Experiment(s) shown==S0050 : Investigation of the Effects of Long-Duration Exposure on Active Optical System Components Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-255.06.jpeg Classification==Prelaunch Photo, LaRC #==L89-04387 Photo, JSC #==None Photo, KSC #==KSC-384C-255.06 Photo, PI #==No value in DB Photo, Date Taken==01/18/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Active Optical System Component Experiment (S0050) contained 136 test specimen located in a six (6) inch deep LDEF peripheral experiment tray. The complement of specimen included optical and electro-optical components, glasses and samples of various surface finishes. The experiment tray was divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen were typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections were covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two sub-experiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and two secondary experiments,The Holographic Data Storage Experiment (AO044) consisting of four crystals of lithium niobate and ThePyroelectric Infrared Detectors Experiment (AO135) with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==S0050 : Investigation of the Effects of Long-Duration Exposure on Active Optical System Components Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-050.jpeg Classification==Flight Photo, LaRC #==L90-10413 Photo, JSC #==S32-77-050 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to berthing the LDEF in the Orbiter cargo bay. The Active Optical System Component Experiment (S0050) contained 136 test specimen located in a six (6) inch deep LDEF peripheral experiment tray. The complement of specimen included optical and electro-optical components, glasses and samples of various surface finishes. The experiment tray was divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat-shaped structure for mounting the test specimens. The test specimens were typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat-shaped mounting structure. Five of the six sections were covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two sub-experiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and two secondary experiments,The Holographic Data Storage Experiment (AO044) consisting of four crystals of lithium niobate and ThePyroelectric Infrared Detectors Experiment (AO135) with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. The excess blue color in the photograph makes a detailed assessment of color changes difficult. The paint dots on the tray clamp blocks, initially white, appear to have darkened and tray flanges appear discolored. The experiment sun screens and base plate also appear discolored. The exposed experiment test specimen and their fiberglass-epoxy mountings appear to have survived the mission with minimum degradation. Photo, Experiment(s) shown==S0050 : Investigation of the Effects of Long-Duration Exposure on Active Optical System Components Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 33.00 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-76-005.jpeg Classification==Flight Photo, LaRC #==L90-10375 Photo, JSC #==S32-76-005 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The paint dots on clamp blocks located at the centers of the upper and left tray flanges have changed from their original white color to an off-white. Brown discolorations are visible on the experiment trays left and lower flanges. The Thermal Control Surfaces Experiment (TCSE) is completely self-contained in a twelve (12) inch deep LDEF experiment tray and consist of the power and data systems, a carousel, a pre-programmed controller and the sample materials. The experiment structure is fabricated from aluminum alloys and assembled using non-magnetic stainless steel fasteners. The photograph shows the carousel sample mounting plate rotated into the open position and a thermal shroud that covers the experiment structure and the power and data system components. The aluminum sample mounting plate accommodates twenty five (25) active samples mounted in calorimeters to thermally isolate the samples from the mounting plate, twenty-four (24) passive samples and three (3) radiometers. The thermal shroud, an aluminum alloy sheet material that is thermally isolated from the experiment structure, has an inside surface coated with black thermal paint and an outside (exposed) surface covered with two (2) mil silver Teflon, applied to the aluminum with Y966 acrylic adhesive. The most obvious change is the color of the 2 mil silver Teflon surface on the shroud. The original silver mirror-like surface now appears white with copious amounts of a brown discoloration in a distinct pattern. The upper and lower triangular sections of the shroud have many irregular shaped black discolorations and an areas where the adhesive appears to have failed. Changes in color have occurred in both the active and passive samples. Note the top four active coating samples located on the outer radii, two of the first three, originally white, now appear brown and have significant damage. The fourth coating sample from the top, originally black, appears to have eroded away leaving only a trace of the paint and/or primer on the substrate. The calorimeter outer edge appears to be deformed in the fourth from lower left active sample location. The passive samples, located on the inner radii, appear to have no physical damage ,however, some of the white paint samples now appear brown or tan. The first and fourth sample from the top appear to have changed from their original color to black and the fifth sample ,originally black, now appears gold. The three radiometers appear to be intact with no apparent physical damage. Photo, Experiment(s) shown==S0069 : Thermal Control Surfaces Experiment Associated Tray(s)==Tray Location: A09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1030.11.jpeg Classification==Postflight Photo, LaRC #==L90-13409 Photo, JSC #==None Photo, KSC #==KSC-390C-1030.11 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC prior to experiment removal from the LDEF. The originally white paint dot on clamp blocks appear to have changed slightly to an off-white color. The experiment trays upper and left flanges appear to have a light tan discoloration. The Thermal Control Surfaces Experiment (TCSE) is completely self-contained in a twelve (12) inch deep LDEF experiment tray and consist of the power and data systems, a carousel, a pre-programmed controller and the sample materials. The experiment structure is fabricated from aluminum alloys and assembled using non-magnetic stainless steel fasteners. The photograph shows the carousel sample mounting plate rotated into the open position and a thermal shroud that covers the experiment structure and the power and data system components. The aluminum sample mounting plate accommodates twenty-five (25) active samples mounted in calorimeters to thermally isolate the samples from the mounting plate, twenty-four (24) passive samples and three (3) radiometers. The thermal shroud, an aluminum alloy sheet material that is thermally isolated from the experiment structure, has an inside surface coated with black thermal paint and an outside (exposed) surface covered with two (2) mil silver Teflon, bonded to the aluminum with Y966 adhesive. The most obvious change is the color of the 2 mil silver Teflon surface on the shroud. The original silver mirror-like surface now appears white with copious amounts of a brown discoloration in a distinct pattern. The upper and lower triangular sections of the shroud have many irregular shaped black discolorations and an areas where the adhesive appears to have failed. Changes in color have occurred in both the active and passive samples. Note the top four active coating samples located on the outer radii, two of the first three, originally white, now appear brown and have significant damage. The fourth coating sample from the top, originally black, appears to have eroded away leaving only a trace of the paint and/or primer on the substrate. The calorimeter outer edge appears to be deformed in the fourth from lower left active sample location. The passive samples, located on the inner radii, appear to have no physical damage, however, some of the white paint samples now appear brown or tan. The first and fourth sample from the top appear to have changed from their original color to black and the fifth sample, originally black, now appears gold. The three radiometers appear to be intact with no apparent physical damage. Photo, Experiment(s) shown==S0069 : Thermal Control Surfaces Experiment Associated Tray(s)==Tray Location: A09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-209.03.jpeg Classification==Prelaunch Photo, LaRC #==L84-07073 Photo, JSC #==None Photo, KSC #==KSC-384C-209.03 Photo, PI #==No value in DB Photo, Date Taken==01/16/1984 Photo, Description== The prelaunch photograph of The Thermal Control Surfaces Experiment (TCSE) was taken in SAEF II at KSC prior to installation on the LDEF. The TCSE is completely self-contained in a twelve (12) inch deep LDEF experiment tray and consist of the power and data systems, a carousel, a pre-programmed controller and the sample materials. The experiment structure is fabricated from aluminum alloys and assembled using nonmagnetic stainless steel fasteners. The photograph shows the carousel sample mounting plate rotated into the open position and a thermal shroud that covers the experiment structure and the power and data system components. The aluminum sample mounting plate accomodates twenty-five (25) active samples mounted in calorimeters to thermally isolate the samples from the mounting plate, twenty-four (24) passive samples and three (3) radiometers. The thermal shroud, an aluminum alloy sheet material that is thermally isolated from the experiment structure, has an inside surface coated with black thermal paint and an outside (exposed) surface covered with two (2) mil silver Teflon, bonded to the aluminum with Y966 adhesive. Photo, Experiment(s) shown==S0069 : Thermal Control Surfaces Experiment Associated Tray(s)==Tray Location: A09 - Orientation: 8.1 degrees off ram incidence angle; leading edge Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-048.jpeg Classification==Flight Photo, LaRC #==L90-10501 Photo, JSC #==S32-89-048 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Fiber Optic Data Transmission Experiment (FODTE) flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on clamp blocks at each end of the experiment tray lower flange appear to be discolored. The FODTE occupies a six (6) inch deep LDEF peripheral tray and consist of an aluminum internal support structure, four aluminum mounting plates, an aluminum cover plate, ten fiber optic cable samples with connectors, aluminum brackets and non-magnet fasteners required to assemble the experiment. Four optical fiber cables (two black, one blue and one bright orange), each configured in the form of a planar, helix coil, are attached to the thermally isolated mounting plates with black anodized aluminum clips cushioned with silicone-rubber spacers. The four mounting plates are coated with a Catalac off-white thermal control paint and the exposed surface of the cover plate is painted with Chemglaze II A-276 white to meet thermal control requirements. Six additional coils of optical fiber cable samples, secured with nylon cable ties, are located in the bottom of the tray, four below the mounting plates and two below the cover plate. Each sample terminates in connectors mounted in brackets located in the tray bottom or on the backside of the thermally isolated mounting plates. The FODTE appears to be intact with no apparent physical damage. A flow pattern of discoloration appears to the right of each fastener used to secure the four mounting plates. Colors of two of the four exposed coils of fiber optic cables have changed significantly. The cable located in the upper right corner, originally a bright orange, appears to be dark blue and the cable in the lower left position has faded from a light blue to a blue-gray color. The color of the silicone-rubber spacers under the coil attach clips appears to have changed from clear to brown. Two brown circular discolorations have appeared, one on the lower edge of the mounting plate in the upper left location and one on the upper edge of the mounting plate in the lower right position. Dark brown irregular shaped discolorations can also be seen along the lower edge and on each of the vertical edges of the cover plate. Photo, Experiment(s) shown==S0109 : Fiber Optic Data Transmission Experiment Associated Tray(s)==Tray Location: C12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2204.02.jpeg Classification==Postflight Photo, LaRC #==L91-09341 Photo, JSC #==None Photo, KSC #==KSC-390C-2204.02 Photo, PI #==No value in DB Photo, Date Taken==03/22/1990 Photo, Description== The Fiber Optic Data Transmission Experiment (FODTE) postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The experiment trays lower flange has a light tan discoloration that is visible in areas not protected by the tray clamp blocks. Dark brown discolorations can be seen near the center of the tray left flange and on the upper and lower flanges near the corners of the white cover plate. The tray sidewalls appear to be heavily stained in corners, along the three areas adjacent to the white cover plate and at the intersection of the sidewalls with the experiment sup- port structure. The FODTE occupies a six (6) inch deep LDEF peripheral tray and consist of an aluminum internal support structure, four aluminum mounting plates, an aluminum cover plate, ten fiber optic cable samples with connectors, aluminum brackets and non-magnet fasteners required to assemble the experiment. Four optical fiber cables (two black, one blue and one bright orange), each configured in the form of a planar, helix coil, are attached to the thermally isolated mounting plates with black anodized aluminum clips cushioned with silicone-rubber spacers. The four mounting plates are coated with a Catalac off-white thermal control paint and the exposed surface of the cover plate is painted with Chemglaze II A-276 white to meet thermal control requirements. Six additional coils of optical fiber cable samples, secured with nylon cable ties, are located in the bottom of the tray, four below the mounting plates and two below the cover plate. Each sample terminates in connectors mounted in brackets located in the tray bottom or on the backside of the thermally isolated mounting plates. The FODTE appears to be intact with no apparent physical damage. A flow pattern of discoloration appears to flow in a downward direction from fasteners used to secure the four mounting plates. The colors of two coils of the externally mounted fiber optic cables have changed significantly. The cable located in the lower right corner, originally a bright orange, appears to be dark brown and the cable in the upper left position has faded from a light blue to blue gray in color. The color of the silicone-rubber spacers under the coil attach clips appears to have changed from clear to brown and to have discolored the fiber coils in areas adjacent spacers. Two brown circular discolorations, one on the left edge of the mounting plate in the upper right location and one on the right edge of the mounting plate in the lower left position, observed in the flight photograph are still visible. Four dark brown areas of discoloration are visible around openings to the tray interior that are located in the vertical seam between the mounting plates. Dark brown irregular shaped discolorations can also be seen along the vertical and upper edges of the cover plate. An irregular shaped vertical stain on the upper right corner of the cover plate, not observed in the flight photograph, is now visible. Photo, Experiment(s) shown==S0109 : Fiber Optic Data Transmission Experiment Associated Tray(s)==Tray Location: C12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-300.01.jpeg Classification==Prelaunch Photo, LaRC #==L89-04395 Photo, JSC #==None Photo, KSC #==KSC-384C-300.01 Photo, PI #==No value in DB Photo, Date Taken==01/20/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Fiber Optic Data Transmission Experiment (FODTE) on the LDEF. The FODTE occupies a six (6) inch deep LDEF peripheral tray and consist of an aluminum internal support structure, four aluminum mounting plates, an aluminum cover plate, ten fiber optic cable samples with connectors, aluminum brackets and non-magnet fasteners required to assemble the experiment. Four optical fiber cables (two black, one blue and one bright orange), each configured in the form of a planar, helix coil, are attached to the thermally isolated mounting plates with black anodized aluminum clips cushioned with silicone-rubber spacers. The four mounting plates are coated with a Catalac off-white thermal control paint and the exposed surface of the cover plate is painted with Chemglaze II A-276 white to meet thermal control requirements. Six additional coils of optical fiber cable samples, secured with nylon cable ties, are located in the bottom of the tray, four below the mounting plates and two below the cover plate. Each sample terminates in connectors mounted in brackets located in the tray bottom or on the backside of the thermally isolated mounting plates. Photo, Experiment(s) shown==S0109 : Fiber Optic Data Transmission Experiment Associated Tray(s)==Tray Location: C12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1069.08.jpeg Classification==Postflight Photo, LaRC #==L90-13488 Photo, JSC #==None Photo, KSC #==KSC-390C-1069.08 Photo, PI #==No value in DB Photo, Date Taken==02/08/1990 Photo, Description== The postflight photograph of the Low Temperature Heat Pipe Package (HEPP) experiment was taken in the SAEF II at KSC prior to removal of the experiment from the LDEF. The color of the white paint dots on three of the experiment tray clamp blocks appears to be unchanged. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Experiment tray, a peripheral tray modified to accommodate radiator location and field of view requirements, is located in the LDEF tray location F12. The HEPP Power tray, an end corner tray, is located on the space end of the LDEF in tray location H01. The experiment tray (F12) contains a Constant ConductanceHeat Pipe, a Thermal Diode Low Temperature Heat Pipe, a radiator coupled with a phase change material canister, the data acquisition and control systems and the LDEF experiment power and data system (EPDS) for processing, recording and storing experiment data. The HEPP EPDS is also used to record and store thermal data from the CVCHPE (AO076) and the THERM (P0003) experiments. Fiberglass standoffs and internal multilayer insulation (MLI) blankets ther- mally isolated the experiment from the experiment tray and the LDEF interior. The radiator and radiator shield panels located in the left half of the tray were covered with silvered Teflon tape to provide the desired optical properties. The outside of the HEPP, except the radiator shield panels and the radiator, was covered with an aluminized Kapton multilayer insulation (MLI) blanket with the outer Kapton layer coated with vapor deposited aluminum on one side only. The two patches of thin film materials, part of an experiment byNASA GSFC that consist of five patches of thirteen samples each and located at three different places on the LDEF (F09, F12 and H01), were attached to the cover of the external thermal blanket with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The upper and lower radiator shields appear to have fine cracks and/or abrasions on the surfaces and are discolored by a brown stain. A darker brown stain appears at the intersection of the end shield sections and in the lower left corner where the silvered Teflon tape has pulled away and is hanging over the LDEF structure. The area initially covered by the tape appears clean and is outlined by a vertical line of discolored material. The external thermal control blanket has sustained damage in the forms of cracks and/or tears near its intersection with the radiator and overall appears more fragile than in the prelaunch photograph. The lower patch of atomic oxygen experiment materials has many severely degraded samples. Several of the materials have sections eroded away and remain attached at only one end, others appear to be completely gone or only fragments remain. The materials in the upper patch appear to have a better survival rate but are eroded, wrinkled and have distorted shapes. Discolorations that appear to be pieces of Kapton tape lay horizontally across the lower third of the upper patch of materials and another piece lays horizontally across the center of the lower patch of material samples. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: F12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4425.08.jpeg Classification==Prelaunch Photo, LaRC #==L84-07339 Photo, JSC #==None Photo, KSC #==KSC-383C-4425.08 Photo, PI #==No value in DB Photo, Date Taken==12/07/1983 Photo, Description== The prelaunch photograph was taken during experiment functional checkout in SAEF II at the KSC prior to installation of the Low Temperature Heat Pipe Package (HEPP) experiment on the LDEF. The electrical cables in the lower part of the photograph are cables that connect the HEPP experiment with the ground support test equipment and are non-flight cables. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Experiment tray, a peripheral tray modified to accommodate radiator location and field of view requirements, is located in the LDEF tray location F12. The HEPP Power tray, an end corner tray, is located on the space end of the LDEF in tray location H01. The experiment tray (F12) contains a Constant ConductanceHeat Pipe, a Thermal Diode Low Temperature Heat Pipe, a radiator coupled with a phase change material canister, the data acquisition and control systems and the LDEF experiment power and data system (EPDS) for processing, recording and storing experiment data. The HEPP EPDS is also used to record and store thermal data from the CVCHPE (AO076) and the THERM (P0003) experiments. Fiberglass standoffs and internal multilayer insulation (MLI) blankets ther- mally isolated the experiment from the experiment tray and the LDEF interior. The radiator and radiator shield panels located in the left half of the tray were covered with silvered Teflon tape to provide the desired optical properties. The outside of the HEPP, except the radiator shield panels and the radiator, was covered with an aluminized Kapton multilayer insulation (MLI) blanket with the outer Kapton layer coated with vapor deposited aluminum on one side only. The two patches of thin film materials, part of an experiment by NASA GSFC that consist of five patches of thirteen samples each and located at three different places on the LDEF (F09, F12 and H01), were attached to the cover of the external thermal blanket with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: F12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-036.jpeg Classification==Flight Photo, LaRC #==L90-10432 Photo, JSC #==S32-78-036 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Low Temperature Heat Pipe Package (HEPP) experimentwas taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays left flange and lower flange appear to be slightly discolored. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Experiment tray, a peripheral tray modified to accommodate radiator location and field of view requirements, is located in the LDEF tray location F12. The HEPP Power tray, an end corner tray, is located on the space end of the LDEF in tray location H01. The experiment tray (F12) contains a Constant ConductanceHeat Pipe, a Thermal Diode Low Temperature Heat Pipe, a radiator coupled with a phase change material canister, the data acquisition and control systems and the LDEF experiment power and data system (EPDS) for processing, recording and storing experiment data. The HEPP EPDS is also used to record and store thermal data from the CVCHPE (AO076) and the THERM (P0003) experiments. Fiberglass standoffs and internal multilayer insulation (MLI) blankets ther- mally isolated the experiment from the experiment tray and the LDEF interior. The radiator and radiator shield panels located in the left half of the tray were covered with silvered Teflon tape to provide the desired optical properties. The outside of the HEPP, except the radiator shield panels and the radiator, was covered with an aluminized Kapton multilayer insulation (MLI) blanket with the outer Kapton layer coated with vapor deposited aluminum on one side only. The two patches of thin film materials, part of an atomic oxygen experiment by NASA GSFC that consist of five patches of thirteen samples each and located at three different places on the LDEF (F09, F12 and H01), were attached to the cover of the external thermal blanket with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The radiator and the radiator shields appear deep blue apparently due to the lighting and the reflecting surface. The upper and lower radiator side shields appear to be discolored by a brown stain that can be seen through the deep blue color. The Teflon tape used to provide continuity between the side shield and end shield surfaces appears to be loose and only secured at the outer edges. The tape and the areas initially covered by the tape appear discolored. The external thermal control blanket appears to be in good condition, however, the lower patch of atomic oxygen experiment materials has many severely degraded samples. Several of the materials have sections eroded away and remain attached at only one end, others appear to be completely gone. The materials in the upper patch appear to have a better survival rate but are wrinkled and have distorted shapes. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: F12 - Orientation: 81.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-2367.04.jpeg Classification==Postflight Photo, LaRC #==L91-11748 Photo, JSC #==None Photo, KSC #==KSC-390C-2367.04 Photo, PI #==No value in DB Photo, Date Taken==03/28/1990 Photo, Description== The postflight photograph of the Low Tem perature Heat Pipe Package (HEPP) power tray was taken in the SAEF II at KSC after an all up system checkout with interfacing experiments and removal of the tray from the LDEF. An outline of the experiment tray clamp blocks is clearly visible in the light brown stain on the experiment tray flanges. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Power tray, an end cor ner tray, occupies a location on the space end of the LDEF in tray location H01 and the HEPP Experiment tray, a peripheral tray, is located in the LDEF tray location F12. The power tray (H01) consist of four solar array panels, one nickel-cadmium (NiCd) battery, a Power System Electronics (PSE) unit, protective thermal blankets that line the tray interior and a thirty seven pound baseplate mounted on thermal isolators to provide a thermally stable mounting for the bat tery and the PSE. Thirteen strips of thin film thermal control materials, part of an experiment by NASA GSFC that consist of sixty-five samples located at three different LDEF tray locations (H01, F09 and F12), were attached to the experiment tray flanges with Kapton tape. The experi ment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasten ers. The experiment hardware appears to be intact with no apparent changes other than stains along outer edges of the solar arrays. The light brown stains observed along the upper edges of the solar array mounting plates and around the outer edge of the baseplate in the flight photograph are not apparent in the postflight photo. The atomic oxygen experiment thin film strips appear to be in place with no apparent damage. The Kapton tape appears to be firmly adhered to the tray flanges in all thirteen locations. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: H01 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4419.12.jpeg Classification==Prelaunch Photo, LaRC #==L84-07331 Photo, JSC #==None Photo, KSC #==KSC-383C-4419.12 Photo, PI #==No value in DB Photo, Date Taken==12/08/1983 Photo, Description== The prelaunch photograph was taken during experiment functional checkout in SAEF II at the KSC prior to installation of the Low Temperature Heat Pipe Package (HEPP) experiment on the LDEF. The electrical cables in the photograph are cables that connect the HEPP Power tray with the HEPP experiment tray and the ground support test equipment and are non-flight cables. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Power tray, an end cor ner tray, occupies a location on the space end of the LDEF in tray location H01 and the HEPP Experiment tray, a peripheral tray, is located in the LDEF tray location F12. The power system tray is shown in the prelaunch photograph with the four red solar array protective covers installed on the aluminum baseplate. The power tray (H01) consist of four solar array panels, one nickel cadmium (NiCd) battery, a Power System Electronics (PSE) unit, protective thermal blankets and a thirty seven pound baseplate (thermal mass). Thirteen strips of thin film thermal control materi als, part of an experiment by NASA GSFC that consist of sixty-five samples located at three dif ferent LDEF tray locations (H01, F09 and F12), were attached to the experiment tray flanges with Kapton tape. The experiment was assembled and mounted in the experiment tray with non-mag netic stainless steel fasteners. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: H01 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-036.jpeg Classification==Flight Photo, LaRC #==L90-10335 Photo, JSC #==S32-75-036 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Low Temperature Heat Pipe Package (HEPP) experiment was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays right flange and lower flange appear to be discolored. The discolor ation diminishes as as the distance from the vent area of the thermal shields increases. The right and lower tray flanges also appear to be discolored. Finger prints are visible on the thermal panels in the vicinity of the panel mounting fasteners. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Power tray, an end cor ner tray, occupies a location on the space end of the LDEF in tray location H01 and the HEPP Experiment tray, a peripheral tray, is located in the LDEF tray location F12. The power tray (H01) consist of four solar array panels, one nickel-cadmium (NiCd) battery, a Power System Electronics (PSE) unit, protective thermal blankets that line the tray interior and a thirty seven pound baseplate mounted on thermal isolators to provide a thermally stable mounting for the bat tery and the PSE. Thirteen strips of thin film thermal control materials, part of an experiment by NASA GSFC that consist of sixty-five samples located at three different LDEF tray locations (H01, F09 and F12), were attached to the experiment tray flanges with Kapton tape. The experi ment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasten ers. The experiment hardware appears to be intact with no apparent changes other than stains along outer edges of the solar arrays. Light brown stains are visible along the upper edges of the solar array mounting plates with faint traces of a lighter colored stain around the outer edge of the base plate. The atomic oxygen experiment thin film strips appear to be in place with no apparent dam age. The Kapton tape appears to be firmly adhered to the tray flanges in all thirteen locations. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: H01 - Orientation: Space-facing end Photo, Scale==25.8 in. W x 31.0 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-383C-4209.06.jpeg Classification==Prelaunch Photo, LaRC #==L84-07293 Photo, JSC #==None Photo, KSC #==KSC-383C-4209.06 Photo, PI #==No value in DB Photo, Date Taken==12/01/1984 Photo, Description== The prelaunch photograph provides a view of the two (2) experiments located in a six (6) inch LDEF experiment tray. The A0187-02 is located in the right two thirds (2/3rd) of the tray and the EECC containing the S1002 experiment occupies the remaining section. The tan colored strips on the tray flanges are protective coatings that are removed prior to tray testing. S1002 - The Effects on Coatings and Solar Cells experiment is contained within the Experiment Exposure Control Canister (EECC) that is located in the left one third (1/3rd) of the experiment tray. The EECC hardware consists of the housing, the drawer that contains the experiment samples, the drawer opening and closing mechanism (a screw drive system) and chromic anodized aluminum thermal covers that are seen in the photograph. The hardware is fabricated from aluminum or non-magnetic steels and is assembled with non-magnetic stainless steel fasteners. The canister will be opened in orbit after the LDEF has been deployed, the Orbiter has departed and initial outgassing of materials on the LDEF has occurred. The canister is programmed to close approximately nine (9) months after opening and prior to the scheduled LDEF retrieval. Experiment samples located in the EECC consist of Second Surface Mirrors (SSM), SSM with Interference Filters (SSM/IF), SSM/IF with a Conductive Layer (SSM/IF/LS, Optical Solar Reflectors (OSR), Quartz Crystal Microbalance (QCM), Coatings and Solar Cell Modules of the types flown on the GEOS and OTS satellites. Photo, Experiment(s) shown==S1002 : Investigation of Critical Surface Degradation Effects on Coating and Solar Cells Developed in Germany Associated Tray(s)==Tray Location: E03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-067.jpeg Classification==Flight Photo, LaRC #==L90-10417 Photo, JSC #==S32-77-067 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The capture cells of experiment A0187-02 are in the left two thirdsThe Experiment Exposure Control Canister containing experiment S1002 is the item located in the right one third section of the tray. The EECC is closed with the S1002 experiments inside. The EECC hardware is intact and appears to be in very good shape. The material on the corners of the thermal cover, near the center of the tray, is layers of tape used to blunt corners of the cover that could possibly snag an astronaut's suit if brushed during an EVA. The tape layers seem to have separated but are still attached and remain in place. The brown stain coats the exposed tray sidewall, the base plate in the tray bottom, the lead screw and the thermal covers. Two (2) Impact craters are located near the center of the base plate, another is located between the two (2) lower screws on the support rail at the right bottom edge of the tray. An impact crater appears as a white dot on the darker background. Additional craters are visible on the EECC aluminum thermal covers, the tray flanges and the LDEF structure. Photo, Experiment(s) shown==S1002 : Investigation of Critical Surface Degradation Effects on Coating and Solar Cells Developed in Germany Associated Tray(s)==Tray Location: E03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1839.02.jpeg Classification==Postflight Photo, LaRC #==L91-10443 Photo, JSC #==None Photo, KSC #==KSC-390C-1839.02 Photo, PI #==No value in DB Photo, Date Taken==03/12/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF. The capture cells of experiment A0187-02 are in the left two thirdsThe Experiment Exposure Control Canister containing experiment S1002 is the item located in the right one third section of the tray. Details of the EECC containing the experiment cannot be defined due to the glare of the lights on the aluminum surfaces. The brown stain is clearly visible on the left end of the bottom tray flange. Note the spring collar near the lower end of the lead screw. The collar, pushed along the lead screw as the door opens, is an indication that the EECC did open and close while in orbit. The green tint on the two (2) debris panels is a by-product of the chromic anodize coating process and not attributed to contamination and/or exposure to the space environment. A light colored irregular shaped vertical streak is seen on the right debris panel. The light band across the top and bottom edges of the panels is caused by light reflecting from the tray sidewalls. Photo, Experiment(s) shown==S1002 : Investigation of Critical Surface Degradation Effects on Coating and Solar Cells Developed in Germany Associated Tray(s)==Tray Location: E03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.09.jpeg Classification==Postflight Photo, LaRC #==L90-13439 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF and shows the positions of four (4) LDEF experiments mounted in a three (3) inch deep LDEF peripheral tray. The Ion Beam Textured and Coated Surfaces (IBEX) Experiment (S1003) is shown in the top one half (1/2) of the right section, the Balloon Materials Degradation Experiment (S1006) experiment is located in the center one third (1/3rd) section, the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section, and the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block remained white, paint on the left-center clamp block is lightly discolored and paint on the upper-right clamp block is heavily discolored. The Ion Beam Textured and Coated Surfaces (IBEX) experiment, located in the top one half (1/2) of the right tray section, consist of a thin aluminum thermal isolation plate. an adapter to raise the samples to the top of the experiment tray, an aluminum mounting plate, an aluminum retainer plate and 36 sample materials on one inch diameter disc. Six openings in the mounting plate, cov- ered with a stainless steel mesh, are used to vent the experiment interior. Twenty-seven of the sample materials used an ion source to etch, sputter deposit or texture a surface to obtain the desired optical property or surface conductivity and seven samples are commercial paints or commercially available metallized thin films used for thermal control. Non-magnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment adapter plate to the tray structure. The experiment hardware appears to be intact with no apparent damage and experiment samples appear to have only minor changes. The IITRI S13G-LO white paint sample located to the right of the lower left corner vent screen has changed to a light brown color and the material sample located above the lower right corner vent screen is partially missing. Other material samples appear in prelaunch condition. Photo, Experiment(s) shown==S1003 : Ion-Beam-Textured and Coated Surfaces Experiment Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-006.jpeg Classification==Flight Photo, LaRC #==L90-10454 Photo, JSC #==S32-82-006 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and shows the positions of four (4) LDEF experiments mounted in a three (3) inch deep LDEF peripheral tray. The Ion Beam Textured and Coated Surfaces (IBEX) Experiment (S1003) is shown in the top one half (1/2) of the right section, the Balloon Materials Degradation Experiment (S1006) experiment is located in the center one third (1/3rd) section, the Multiple Foil Microabrasion Package (MAP) Experiment (A0023) occupies the left one third (1/3rd) section, and the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block remained white, paint on the left-center clamp block is lightly discolored and paint on the upper-right clamp block is heavily discolored. The Ion Beam Textured and Coated Surfaces (IBEX) experiment, located in the top one half (1/2) of the right tray section, consist of a thin aluminum thermal isolation plate. an adapter to raise the samples to the top of the experiment tray, an aluminum mounting plate, an alumigold coated aluminum retainer plate and 36 diverse sample materials on one inch diameter disc. Six openings in the mounting plate, covered with a stainless steel mesh, are used to vent the experiment interior. Twenty seven of the sample materials used an ion source to etch, sputter deposit or texture a surface to obtain the desired optical property or surface conductivity and seven samples are commercial paints or commercially available metallized thin films used for thermal control. Non- magnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment adapter plate to the tray structure. The experiment hardware appears to be intact with no apparent damage and experiment samples appear to have only minor changes. The IITRI S13G-LO white paint sample located to the right of the lower left corner vent screen has changed to a light brown color and the material sample located above the lower right corner vent screen is partially missing. Other material samples appear in prelaunch condition Photo, Experiment(s) shown==S1003 : Ion-Beam-Textured and Coated Surfaces Experiment Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.10.jpeg Classification==Prelaunch Photo, LaRC #==L84-07068 Photo, JSC #==None Photo, KSC #==KSC-384C-193.10 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC and shows the positions of four (4) LDEF experiments in a three (3) inch deep LDEF peripheral tray. The Ion Beam Textured and Coated Surfaces (IBEX) Experiment (S1003) is shown in the top one half (1/2) of the right section, the Balloon Materials Degradation Experiment (S1006) experiment is located in the center one third (1/3rd) section, the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section, and the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section of the tray. The Ion Beam Textured and Coated Surfaces (IBEX) experiment, located in the top one half (1/2) of the right tray section, consist of a thin aluminum thermal isolation plate. an adapter to raise the samples to the top of the experiment tray, an aluminum mounting plate, an aluminum retainer plate and 36 sample materials on one inch diameter disc. Six openings in the mounting plate, cov- ered with a stainless steel mesh, are used to vent the experiment interior. Twenty-seven of the sample materials used an ion source to etch, sputter deposit or texture a surface to obtain the desired optical property or surface conductivity and seven samples are commercial paints or commercially available metallized thin films used for thermal control. Non-magnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment adapter plate to the tray structure. Photo, Experiment(s) shown==S1003 : Ion-Beam-Textured and Coated Surfaces Experiment Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-78-076.jpeg Classification==Flight Photo, LaRC #==L90-10444 Photo, JSC #==S32-78-076 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The Transverse Flat-Plate Heat Pipe Experiment flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. No change in the color of the white paint dots on experiment tray clamp blocks is apparent. The Transverse Flat-Plate Heat Pipe Experiment consist of three (3) transverse flat heat-pipe modules , a power system for the heaters, a data acquisition and storage system and an aluminum support structure placed in a twelve (12) inch deep LDEF experiment tray. The surface of the experiment exposed to the space environment consist of the three heat pipe modules exterior surfaces, silver Teflon, and the thermal blankets covering the aluminum mounting hardware and openings between the hardware and the tray sidewalls. The raised surface at the top of each heat pipe module is the fluid reservoir. Five thermocouples, for monitoring the external surface temperature, are located on each module. The specular surface of the silver Teflon has become diffuse and appears white. Numerous impact craters, black specks, can be seen on the white surfaces of the modules. There appears to be a light tan discoloration on the surfaces of all three heat pipe modules. Two different types of discolorations can be seen at the top end of the center heat pipe; a dark brown color to the left of the thermocouple and what appears as two multi-color irregular shaped patterns to the right of the thermocouple. A square shaped light brown discoloration is seen near the left edge of the left thermal blanket, approximately half way between the tray bottom and center clamp blocks and also near the top of the thermal blanket between the left heat pipe module and the center heat pipe module. Photo, Experiment(s) shown==S1005 : Transverse Flat-Plate Heat Pipe Experiment Associated Tray(s)==Tray Location: B10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-612.02.jpeg Classification==Postflight Photo, LaRC #==L92-17793 Photo, JSC #==None Photo, KSC #==KSC-390C-612.02 Photo, PI #==No value in DB Photo, Date Taken==01/30/1990 Photo, Description== The Transverse Flat-Plate Heat Pipe Experiment postflight photograph was taken in the Orbiter Processing Facility (OPF) at KSC during removal of the LDEF from the Orbiter's cargo bay. The thermal blanket (with the patches) across the lower edge of the photograph is part of the Orbiter thermal protection system and not associated with the heat pipe experiment. The Transverse Flat-Plate Heat Pipe Experiment consist of three (3) transverse flat heat-pipe modules , a power system for the heaters, a data acquisition and storage system and an aluminum support structure placed in a twelve (12) inch deep LDEF experiment tray. The surface of the experiment exposed to the space environment consist of the three heat pipe modules exterior surfaces, silver Teflon, and the thermal blankets covering the aluminum mounting hardware and openings between the hardware and the tray sidewalls. The raised surface at the left end of each heat pipe module is the fluid reservoir. The specular surface of the silver Teflon has become diffuse and appears white. Numerous impact craters, black specks, can be seen on the white surfaces of the modules and on the thermal blankets. A light tan discoloration is visible on the surfaces of all three heat pipe modules. Two different types of discolorations can be seen at the left end of the center heat pipe; a dark brown color below the thermocouple and what appears as two multi-color irregular shaped patterns above the thermocouple. A square shaped light brown discoloration is seen near the bottom edge of the thermal blanket between the lower heat pipe module and the tray sidewall and also near the left end of the thermal blanket located between the lower and the center heat pipe modules. Photo, Experiment(s) shown==S1005 : Transverse Flat-Plate Heat Pipe Experiment Associated Tray(s)==Tray Location: B10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Orbital Processing Facility (OPF) Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==Prelaunch Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==No value in DB Photo, Description== The Transverse Flat-Plate Heat Pipe Experiment consist of three (3) transverse flat heat-pipe modules , a power system for the heaters, a data acquisition and storage system and an aluminum support structure placed in a twelve (12) inch deep LDEF experiment tray. The surface of the experiment exposed to the space environment consist of the three heat pipe modules exterior surfaces, silver Teflon, and the thermal blankets covering the aluminum mounting hardware and openings between the hardware and the tray sidewalls. The raised surface at the end of each heat pipe module is the fluid reservoir. NO PHOTOGRAPH AVAILABLE Photo, Experiment(s) shown==S1005 : Transverse Flat-Plate Heat Pipe Experiment Associated Tray(s)==Tray Location: B10 - Orientation: 21.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-82-006.jpeg Classification==Flight Photo, LaRC #==L90-10454 Photo, JSC #==S32-82-006 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the orbiter aft flight deck during the LDEF retrieval and shows the positions of four (4) LDEF experiments mounted in a three (3) inch deep LDEF peripheral tray. The Balloon Materials Degradation Experiment (S1006) experiment is located in the center one third (1/3rd) section, the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section, the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section and the Ion Beam Textured and Coated Surfaces Experiment (S1003) is shown in the top-right section of the tray.The tray flanges appear as pre- launch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block is white, paint on the left-center clamp block is lightly discolored and paint on the upper-right clamp block is heavily discolored. The Balloon Materials Degradation experiment, located in the center one third (1/3rd) tray section, consist of 38 polymer film specimen, in the form of either thin film or reinforced tape, and 24 fibrous cord specimen. The ends of each test polymer film specimen, approximately 1.0 inch wide and 6.0 inches long, were secured between aluminum clamp strips that attached to aluminum experiment mounting plates. The cord specimen, approximately 4.0 inches long, are secured along the left and right edges of the experiment mounting plates in a similar manner. The aluminum clamp strips and experiment mounting plates have a thermal coat of IITRI S13G-LO white paint. Non-magnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment mounting plate to the tray structure. The thin film polymeric material samples in the Balloon Materials Degradation experiment appear to have been severely degraded. All 26 of the unreinforced thin film samples have curled edges, 12 samples appear to have failed in tension and a significant portion of the 2 aluminized polymer samples appears to be missing. The reinforced thin film polymer samples are discolored but appear to have survived the mission intact . The IITRI S13G-LO white paint appears to have a light tan discoloration in areas not covered by experiment samples with some evidence that at least some of the discoloration occurred after sample failure. Photo, Experiment(s) shown==S1006 : Balloon Material Degradation Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1033.09.jpeg Classification==Postflight Photo, LaRC #==L90-13439 Photo, JSC #==None Photo, KSC #==KSC-390C-1033.09 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in the SAEF-II facility prior to removal of experiment trays from the LDEF and shows the positions of four (4) LDEF experiments mounted in a three (3) inch deep LDEF peripheral tray. The Balloon Materials Degradation Experiment (S1006) experiment is located in the center one third (1/3rd) section, the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section, the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section and the Ion Beam Textured and Coated Surfaces Experiment (S1003) is shown in the top right section of the tray. The tray flanges appear as prelaunch but the white paint dots on tray clamp blocks have varying degrees of discoloration. The paint color on the lower-center clamp block is white, paint on the left-center clamp block is lightly discolored and paint on the top-right clamp block is heavily discolored. The Balloon Materials Degradation experiment, located in the center one third (1/3rd) tray section, consist of 38 polymer film specimen, in the form of either thin film or reinforced tape, and 24 fibrous cord specimen. The ends of each test polymer film specimen, approximately 1.0 inch wide and 6.0 inches long, were secured between aluminum clamp strips that attached to aluminum experiment mounting plates. The cord specimen, approximately 4.0 inches long, are secured along the left and right edges of the experiment mounting plates in a similar manner. The aluminum clamp strips and experiment mounting plates have a thermal coat of IITRI S13G-LO white paint. Non-magnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment mounting plate to the tray structure. The thin film polymeric material samples in the Balloon Materials Degradation experiment appear to have been severely degraded. All 26 of the unreinforced thin film samples have curled edges with 12 of the samples appearing to have failed in tension. One of the two aluminized polymer samples is missing completely and approximately 80 percent of the other sample has eroded. The reinforced thin film polymer samples are discolored but appear to have survived the mission intact. The IITRI S13G-LO white paint appears to have a light tan discoloration in areas not covered by experiment samples with some evidence that at least some of the discoloration occurred after sample failure. Photo, Experiment(s) shown==S1006 : Balloon Material Degradation Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-193.10.jpeg Classification==Prelaunch Photo, LaRC #==L84-07068 Photo, JSC #==None Photo, KSC #==KSC-384C-193.10 Photo, PI #==No value in DB Photo, Date Taken==01/12/1984 Photo, Description== The prelaunch photograph shows the positions of four (4) LDEF experiments in a three (3) inch deep LDEF peripheral tray. The Balloon Materials Degradation Experiment (S1006) experiment is located in the center one third (1/3rd) section, the Multiple Foil Microabrasion Package (MAP) Experiment (AO023) occupies the left one third (1/3rd) section, the Measurement of Heavy Cosmic-Ray Nuclei on LDEF Experiment (M0002-02) is located in the lower one half (1/2) of the right section and the Ion Beam Textured and Coated Surfaces Experiment (S1003) is shown in the top right section of the tray. The Balloon Materials Degradation experiment, located in the center one third (1/3rd) tray section, consist of 38 polymer film specimen, in the form of either thin film or reinforced tape, and 24 fibrous cord specimen. The ends of each test polymer film specimen, approximately 1.0 inch wide and 6.0 inches long, were secured between aluminum clamp strips that attached to aluminum experiment mounting plates. Two specimen of metallized film, aluminized polyester, are mounted on the lower experiment base plate with the reinforced polymer tapes. The cord specimen, approximately 4.0 inches long, are secured along the left and right edges of the experiment mounting plates in a similar manner. Non-magnetic stainless steel fasteners are used for the experiment assembly and for attaching the experiment mounting plate to the tray structure. Photo, Experiment(s) shown==S1006 : Balloon Material Degradation Associated Tray(s)==Tray Location: E06 - Orientation: 98.1 degrees off ram incidence angle Photo, Scale==37.50 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==L83-09232.jpeg Classification==Prelaunch Photo, LaRC #==L83-09232 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/01/1983 Photo, Description== The photograph provides a view of the scuff plates for use on the LDEF. The scuff plates and the longeron payload trunnion guides installed in the Orbiter cargo bay provide the mechanism for positioning a payload in the Orbiter's cargo bay.The bright yellow paint with the black markings meets Orbiter visibility requirements. Note the two scuff plates in the center of the upper row are for use on the end support beam (ESB) and do not have removable inserts as do the other four. Four scuff plates are used on the LDEF, two on the end support beam trunnions and two on the main trunnions located on the center ring structure. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==12.25 inch radius Photo, Collection==Prelaunch Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L90-01537.jpeg Classification==Postflight Photo, LaRC #==L90-01537 Photo, JSC #==None Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/01/1990 Photo, Description== The photograph provides a view of the LDEF end support beam (ESB) scuff plates. The scuff plates and the longeron payload trunnion guides installed in the Orbiter cargo bay provide a mechanism for positioning a payload in the payload retention latches in the Orbiter's cargo bay during berthing operations. The paint scheme of bright yellow paint with black markings meets Orbiter visibility requirements. Note the difference in the color of paint on the scuff plates after the extended eposure to the space environment. The scuff plate on the left was located on the ESB trunnion on the leading edge of LDEF, row 9, and the color is essentially the same as prelaunch. The discolorations on the yellow surface appears to be from postflight handling and are not attributed to the space exposure. The scuff plate on the right was located on the trailing edge of the LDEF, row 3, and has changed to a brown color. The main dif- ference in the exposure environments of the two scuff plates was the atomic oxygen flux. The leading edge was exposed to the RAM and the maximum atomic oxygen flux with the trailing edge being in the LDEF's wake and exposed to the minimum atomic oxygen flux. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==12.25 inch radius Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-LaRC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-050.jpeg Classification==Flight Photo, LaRC #==L90-10479 Photo, JSC #==S32-85-050 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through F on Rows 11 through 3 with the LDEF on the Remote Manipulator System arm. The aft flight deck window frame blanks out the left half of the photograph and the Earth with its cloud cover pro- vides the background for the LDEF. Note the clean appearance of the white paints in row 12 when compared with similar paint on experiment hardware in rows 2 and 3. The original bright yellow paint on the trunnion scuff plates on row 3 has darkened significantly. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-85-056.jpeg Classification==Flight Photo, LaRC #==L90-10481 Photo, JSC #==S32-85-056 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== An overall side view of Bays A through D on Rows 11 through 3 with the LDEF on the Remote Manipulator System arm. The aft flight deck window frame shadows the left edge of the photograph and the Earth with its cloud cover provides the background for the LDEF. Note the clean appearance of the white paints on thermal covers in row 12 when compared with similar paint on experiment hardware in rows 2 and 3. The original bright yellow paint on the trunnion scuff plates on row 3 has darkened significantly. Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==None.tn.gif Classification==None Photo, LaRC #==None Photo, JSC #==None Photo, KSC #==None Photo, PI #==None Photo, Date Taken==No value in DB Photo, Description==None Photo, Experiment(s) shown==None : None Associated Tray(s)==Tray Location: N. A. - Orientation: N. A. Photo, Scale==N. A. Photo, Collection==N. A. Photo, Credit==N. A. || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==L-91-1572.jpeg Classification==Postflight Photo, LaRC #==L91-01572 Photo, JSC #==None Photo, KSC #==KSC-390C-1460.02 Photo, PI #==No value in DB Photo, Date Taken==02/23/1990 Photo, Description== The postflight photograph was taken in the SAEF II at KSC after the experiment was removed from the LDEF and the silvered Teflon thermal cover was removed from the experiment tray. The Seeds in Space Experiment (P0004-01) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of 2 million seeds of 120 different varieties, one sealed canister, two smaller vented canisters, and a silvered Teflon thermal cover. Two other experiments, the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. Areas of the experiment tray flanges covered by the tray clamp blocks are unstained and clearly visible. The sealed Seeds in Space Experiment canister, a base portion and a dome portion, was machined from aluminum and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing a volume of approximately 1/3 cubic foot. the sealed canister was the center canister in the top row. The two vented canisters were also aluminum. One canister, 4 inches in diameter and 4 inches high, was mounted on the top side of the experiment tray at the lower right corner of the large sealed canister. The other vented canister was rectangular in shape and mounted on the bottom side of the tray, the side facing the LDEF interior. The exterior surfaces of all canisters located on the top side of the experiment tray were painted white with Chemglaze II A-276. The exterior surface of the rectangular canister on the bottom side of the experiment tray was coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The experiment hardware appears intact and in prelaunch condition. The Chemglaze II A-276 white paint has no apparent discolorations. Photo, Experiment(s) shown==P0004-01 : Seeds in Space Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-89-023.jpeg Classification==Flight Photo, LaRC #==L90-10497 Photo, JSC #==S32-89-023 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph was taken from the Orbiter aft flight deck during the LDEF retrieval and prior to the berthing of LDEF in the Orbiter's cargo bay. The Space Exposed Experiment Developed for Students (SEEDS) P0004-02 is one of three passive experiments located in a 6-inch deep LDEF peripheral tray. The experiment consist of 12.5 million Rutgers tomato seeds, five sealed canisters and a silvered Teflon thermal cover. Two other experiments, the Seeds in Space Experiment (P0004-01) and the Linear Energy Transfer (LET) Experiment (P0006), were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners. The paint dots, originally white, located on experiment tray clamp blocks now appear brown. The experiment tray flanges also appear to be discolored. The sealed SEEDS canisters, 5 bases and 5 domes, were machined from aluminum plate material and assembled together with a butyl rubber o-ring seal. The machined interior was approximately 4 inches deep with a 12 inch internal diameter, providing an open volume of approximately 1/3 cubic foot in each canister. The 5 canisters were were mounted in the experiment tray along with a similar canister containing the Seeds in Space Experiment. The exterior surfaces of all canisters were painted white with Chemglaze II A-276 and surfaces facing the LDEF interior were coated with Chemglaze Z-306 flat black paint over a Chemglaze 9924 primer. Thermal control was accomplished by placing the canisters on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the canister domes and on clips attached to the tray sidewalls. The silvered Teflon thermal cover appears to be intact with no apparent damage. The three dark spots appearing in a vertical row about a third of a tray width from the right edge of the cover are the locations of three Velcro pads. Photo, Experiment(s) shown==P0004-02 : Space-Exposed Experiment Developed for Students Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-299.05.jpeg Classification==Prelaunch Photo, LaRC #==L84-07150 Photo, JSC #==None Photo, KSC #==KSC-384C-299.05 Photo, PI #==No value in DB Photo, Date Taken==01/19/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated experiment tray on the LDEF. The Linear Energy Transfer (LET) Experiment (P0006) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of two types of detectors, thermal luminescence and track type, assembled in a sealed container. Two other experiments, the the Seeds in Space Experiment (P0004-01) and the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners and thermally protected by a silvered Teflon thermal cover. The sealed Linear Energy Transfer (LET) Experiment container was machined from aluminum and assembled together with a Buna-N o-ring seal. The container, approximately 6 inches in diameter and 4.5 inches high, was mounted on the top side of the experiment tray and painted white with Chemglaze II A-276. Thermal control was accomplished by placing the canister on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered Teflon specular cover secured with Velcro pads located on each of the P0004 canister domes and on clips attached to the tray sidewalls. The apparent brown discoloration in the approximate center of the silvered Teflon cover is a reflection from the surrounding area and not an actual stain. Photo, Experiment(s) shown==P0006 : Linear Energy Transfer Spectrum Measurement Experiment Associated Tray(s)==Tray Location: F02 - Orientation: 141.9 degrees off ram incidence angle Photo, Scale==6.0 in. dia. x 4.5 in. H Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1701.02.jpeg Classification==Postflight Photo, LaRC #==L91-11803 Photo, JSC #==None Photo, KSC #==KSC-390C-1701.02 Photo, PI #==No value in DB Photo, Date Taken==03/07/1990 Photo, Description== The Space Debris Impact Experiment con sists of a three sixteenth (3/16) of an inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF interior, contribute significantly to thermal control of the LDEF spacecraft. The postflight photograph was taken in SAEF II at the KSC after the experiment was removed from the LDEF. A brown discoloration can be seen on the upper tray flange and a lighter discol oration on the lower tray flange not covered by the experiment tray clamp blocks. Irregular shaped tan discolorations are also visible on the experiment tray sidewall with a darker stain in the right tray corners Photo, Experiment(s) shown==S0001 : Space Debris Impact Experiment Associated Tray(s)==Tray Location: H05 - Orientation: Space-facing end Photo, Scale==28.5 in. W x 28.5 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==S32S-282.jpeg Classification==Postflight Photo, LaRC #==L92-21189 Photo, JSC #==S32-S-282 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/22/1990 Photo, Description== The post landing photograph of the Low Tempera ture Heat Pipe Package (HEPP) experiment was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. The white paint dots on the center clamp blocks of the experiment trays right flange and upperer flange appear to be discolored. The discoloration diminishes as as the distance from the vent area of the thermal shields increases. The right and upper tray flanges also appear to be discolored. Finger prints are visible on the thermal panels in the vicinity of the panel mounting fasteners. The Low Temperature Heat Pipe Package (HEPP) experiment occupies two 12 inch deep LDEF experiment trays connected with an inter-tray wiring harness. The HEPP Power tray, an end cor ner tray, occupies a location on the space end of the LDEF in tray location H01 and the HEPP Experiment tray, a peripheral tray, is located in the LDEF tray location F12. The power tray (H01) consist of four solar array panels, one nickel-cadmium (NiCd) battery, a Power System Electronics (PSE) unit, protective thermal blankets that line the tray interior and a thirty seven pound baseplate mounted on thermal isolators to provide a thermally stable mounting for the bat tery and the PSE.. Thirteen strips of thin film thermal control materials, part of an experiment by NASA GSFC that consist of sixty-five samples located at three different LDEF tray locations (H01, F09 and F12), were attached to the experiment tray flanges with Kapton tape. The experi ment was assembled and mounted in the experiment tray with non-magnetic stainless steel fasten ers. The experiment hardware appears to be intact with no apparent changes other than stains along outer edges of the solar arrays. Light brown stains are visible along the upper edges of the solar array mounting plates with faint traces of a lighter colored stain around the outer edge of the base plate. The atomic oxygen experiment thin film strips appear to be in place with only minor dam age. The samples in the upper left corner of the tray appear to be degraded. The Kapton tape appears to be loose in several locations, the sample in the trays lower left corner and the center sample on the right tray flange. In other areas the tape appears to be firmly adhered to the tray flanges. Photo, Experiment(s) shown==S1001 : Low-Temperature Heat Pipe Experiment Package (HEPP) for LDEF Associated Tray(s)==Tray Location: H01 - Orientation: Space-facing end Photo, Scale==25.8 in. W x 31.0 in. L Photo, Collection==Dryden Post-Landing Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1035.05.jpeg Classification==Postflight Photo, LaRC #==L90-13450 Photo, JSC #==None Photo, KSC #==KSC-390C-1035.05 Photo, PI #==No value in DB Photo, Date Taken==02/09/1990 Photo, Description== The postflight photograph was taken in SAEF II at KSC prior to removal of the experiment tray from the LDEF. The Holographic Data Storage Crystals for LDEF Experiment (AO044) consist of four crystals of lithium niobate, three crystals contain recorded holograms and one crystal is an unrecorded control sample. The Holographic Data Storage experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typically placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, ThePyroelectric Infrared Detectors Experiment with twenty detectors, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. The experiment hardware appears to be intact with no apparent damage. The excess blue color in the flight photograph is no longer present. The paint dots on the tray clamp blocks, initially white, are brown and tray flanges appear to have a light tan discoloration. The experiment sun screens and base plate also appear to have the same discoloration. The exposed experiment test specimen and their fiberglass-epoxy mountings appear to have survived the mission. The fiberglass-epoxy mounting strip colors have changed from the typical greenish-gray to a slate gray and the colors of the test specimen appear to be much darker than in the prelaunch photograph. Photo, Experiment(s) shown==AO044 : Holographic Data Storage Crystals for LDEF Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-255.06.jpeg Classification==Prelaunch Photo, LaRC #==L89-04387 Photo, JSC #==None Photo, KSC #==KSC-384C-255.06 Photo, PI #==No value in DB Photo, Date Taken==01/18/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated tray on the LDEF. The Space Exposure on Pyroelectric Infrared Detectors Experiment (AO135) consist of twenty detectors of three different types of materials, lithium-tantalate, strontium-barium-niobate and triglycine-sulfide. The Pyroelectric infrered detector experiment is an integral part of the Active Optical System Component Experiment (S0050) that contains 136 test specimen and is located in a six (6) inch deep LDEF peripheral experiment tray. The experiment tray is divided into six sections, each consisting of a 1/4 inch thick chromic anodized aluminum base plate and a 1/16th inch thick aluminum hat shaped structure for mounting the test specimen. The test specimen are typi- cally placed in fiberglass-epoxy retainer strip assemblies prior to installation on the hat shaped mounting structure. Five of the six sections are covered by a 1/8 inch thick anodized aluminum sun screen with openings that allowed 56 percent transmission over the central region. Two subexperiments, The Optical Materials and UV Detectors Experiment (S0050-01) consist of 15 optical windows, filters and detectors and occupies one of the trays six sub-sections and The Optical Substrates and Coatings Experiment (S0050-02 ) that includes 12 substrates and coatings and a secondary experiment, The Holographic Data Storage Crystal Experiment (AO044) with four crystals, are also mounted in the integrated tray. The experiment structure was assembled with non-magnetic stainless steel fasteners. Photo, Experiment(s) shown==AO135 : Effect of Space Exposure on Pyroelectric Infrared Detectors Associated Tray(s)==Tray Location: E05 - Orientation: 128.1 degrees off ram incidence angle Photo, Scale==18.75 in. W x 16.50 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-017.jpeg Classification==Flight Photo, LaRC #==L90-10403 Photo, JSC #==S32-77-017 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The photograph was taken from the Orbiter aft flight deck during the retrieval of the LDEF and shows one of the solar array test panels from Solar Array Materials Passive LDEF Experiment (SAMPLE) baseplate number 1 in free flight. The solar array apparently separated from the baseplate after the adhesive bond joint degraded. Photo, Experiment(s) shown==AO171 : Solar-Array-Materials Passive LDEF Experiment Associated Tray(s)==Tray Location: A08 - Orientation: 38.1 degrees off ram incidence angle Photo, Scale==3.12 in. W x 5.0 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-77-023.jpeg Classification==Flight Photo, LaRC #==L90-10406 Photo, JSC #==S32-77-023 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays left flange and lower flange appear to be discolored by a dark brown stain. The UHCRE detectors were contained in 16 peripheral LDEF trays with at least one UHCRE tray located on each row of the LDEF except row 3, row 9 and row 12. Each tray contains three cylindrical aluminum pressure vessels with an integral aluminum support structure. Each cylinder is filled with an Eccofoam insert that houses 4 UHCRE detector stacks. Each stack consist of layers of Lexan polycarbonate sheets (approximately 70) interleaved with several thin sheets of lead. Forty-seven of the 48 pressure vessels were pressurized to 1.0 bar of a dry gas mixture (oxygen, nitrogen and helium) and sealed. One of the units was left unsealed in order to investigate the effects of the vacuum environment on the detector materials. Thermal control was accomplished by attaching an aluminized Kapton thermal cover on the tray bottom (the Kapton facing the LDEF interior), placing the aluminum cylinder support structure on thermal isolators and covering the experiment with a thin (5 mil) silvered Teflon thermal cover. The silvered Teflon cover was supported by an aluminum frame, an integral part of the experiment structure, and held in place by Velcro pads selectively located on the frame and on the back of the cover. The copper colored strip extending over the trays upper flange is a copper coated pressure sensitive tape used to provide an electrical ground between the experiments thermal cover and the LDEF structure. The UHCRE thermal cover appears to be specular and intact with no apparent damage but is more taut than in the prelaunch photograph. The wrinkled spots on the thermal cover are areas where Velcro pads are bonded to the backside of the cover. The scalloped effect around the cover edges occurs between the cover attach points. The ground strap appears to be in place with no visible damage. Photo, Experiment(s) shown==AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei Associated Tray(s)==Tray Location: A04 - Orientation: 158.1 degrees off ram incidence angle Photo, Scale==37.18 in. W x 48.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/POSTFLIGHT Image File Name==KSC-390C-1843.08.jpeg Classification==Postflight Photo, LaRC #==L91-07590 Photo, JSC #==None Photo, KSC #==KSC-390C-1843.08 Photo, PI #==No value in DB Photo, Date Taken==03/12/1990 Photo, Description== Canister closed. Photo, Experiment(s) shown==AO187-01 : The Chemistry of Micrometeoroids Associated Tray(s)==Tray Location: A03 - Orientation: 171.9 degrees off ram incidence angle; trailing edge Photo, Scale==37.50 in. W x 33.0 in. L Photo, Collection==SAEF II Postflight Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/PREFLIGHT Image File Name==KSC-384C-318.01.jpeg Classification==Prelaunch Photo, LaRC #==L89-04397 Photo, JSC #==None Photo, KSC #==KSC-384C-318.01 Photo, PI #==No value in DB Photo, Date Taken==01/23/1984 Photo, Description== The prelaunch photograph was taken in SAEF II at KSC prior to installation of the Heavy Ions in Space Experiment on the LDEF. The prelaunch photograph shows four (4) experiment modules mounted in the LDEF provided end center experiment tray. The experiment module consist of the thermal cover, a top stack of Lexan sheets for detecting low-energy ions, a honeycomb pressure cover and the main stack of CR-39 used to detect cosmic rays mounted in an aluminum housing. The four modules are identi cal in materials and construction. The exposed surface of each module is a white paint overcoat, Chemglaze II A-276, that has been applied to the top layer, aluminized kapton, of a multi-layer thermal blanket. The frame around each of the four modules, a Z shaped aluminum structure, is covered with a silverized Teflon film secured with 3M Y966 acrylic transfer tape. The 3M Y966 transfer tape on a siliverized Teflon film is also used to attach the four edges of the multi-layer thermal blankets to the modules frame. The combination of the silverized Teflon and the white paint provides the appropriate optical properities needed to meet experiment thermal require ments. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H03 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==Prelaunch Survey Photo, Credit==NASA-KSC || Retrieval Scheme==HTTP - Hyper Text Transfer Protocol Hostname==setas-www.larc.nasa.gov Path==setas/LDEF/PHOTOS/ON_ORBIT Image File Name==S32-75-067.jpeg Classification==Flight Photo, LaRC #==L90-10373 Photo, JSC #==S32-75-067 Photo, KSC #==None Photo, PI #==No value in DB Photo, Date Taken==01/12/1990 Photo, Description== The flight photograph of the Heavy Ions in Space Experiment was taken from the Orbiter's aft flight deck during LDEF retrieval operations. A light coating of the stain can be seen on the tray flange adjacent to the American flag. The photograph shows four (4) experiment modules mounted in the LDEF provided end center experiment tray.An experiment module consist of the thermal cover, a top stack of Lexan sheets for detecting low-energy ions, a honeycomb pressure cover and the main stack of CR-39 used to detect cosmic rays mounted in an aluminum housing. Three modules are identical while the fourth module has been divided into four smaller units that allows the use of pressure covers with a lower energy threshold to Ion penetration. The exposed surface of each module is a white paint overcoat, Chemglaze II A-276, that has been applied to the top layer, aluminized Kapton, of a multilayer thermal blanket. The frame around each of the four modules, a Z shaped aluminum structure, is covered with a silverized Teflon film secured with 3M Y966 acrylic transfer tape. The 3M Y966 tape on a silverized Teflon film is also used to attach the multi-layer thermal insulation blankets to the modules frame. The combination of the silverized Teflon and the white paint provides the appropriate optical properities needed to meet experiment thermal requirements. Extensive damage occurred to the experiment's multi-layer thermal blankets during the LDEF mission, prior to retrieval operations. It appears that the tape used attach the thermal blankets to the structure failed in tension. When the bond joint released along two (2) sides, the tension was releaved and the remaining tape continued to hold the blanket to the structure through out the rest mission and the post-flight operations. The outside blanket surfaces that were originally white are now coated with a glossy dark brown stain thought to be from contamination and/or the products of material outgassing. The golden colored material in the three (3) full modules are the top sheets of Lexan detector stacks held in place by the aluminum Z shaped structure. The deep rich chocolate colored sections visible in one half (1/2) of the other module is also the top layer of detector sheets underneath support straps. Photo, Experiment(s) shown==M0001 : Heavy Ions in Space Associated Tray(s)==Tray Location: H12 - Orientation: Space-facing end Photo, Scale==33.50 in. W x 30.76 in. L Photo, Collection==LDEF Retrieval Survey Photo, Credit==NASA-JSC ||