SPX-507 25 January 1996 SPACEWARN BULLETIN 507 A publication of NASA NSSDC/WDC-A-R&S as the WWAS for IUWDS/COSPAR (All information in this publication was received between 25 December 1995 and 24 January 1996.) A. List of New International Designations and Launch Dates (UT). (USSPACECOM Catalog numbers are in parentheses.) 1996-004A (23773) COSMOS 2327 16 Jan 1996 1996-003A (23768) KOREASAT 2 14 Jan 1996-002B (23765) MEASAT 1 12 Jan 1996-002A (23764) PAS 3R 12 Jan 1996-001B (23763) OAST FLYER 11 Jan 1996-001A (23762) STS 72 11 Jan 1995-074A (23757) XTE 30 Dec 1995 1995-073A (23754) ECHO STAR 1 28 Dec 1995-072B (23752) SKIPPER 28 Dec 1995-072A (23751) IRS 1-C 28 Dec B. Text of Launch Announcements. 1996-004A COSMOS 2327 is a Russian military spacecraft that was launched from Plesetsk cosmodrome by a Cosmos-3M rocket at 15:34 UT. Initial orbital parameters were period 104.9 min, apogee 1,034 km, perigee 974 km, and inclination 83 deg. 1996-003A KOREASAT 2, also known as MUGUNGHWA 2, is a South Korean geostationary communications spacecraft that was launched from Cape Canaveral by a Delta 2 rocket at 11:10 UT. It will be parked at 116-E longitude over Borneo island to provide broadcasting and telecommunications to South Korea, beginning July 96. 1996-002B MEASAT 1 is a Malaysian geostationary communications spacecraft that was launched by an Ariane 44L rocket from Kourou in French Guiana at 23:10 UT. After parking at 91.5-E longitude, the 1,450 kg spacecraft will provide communications and direct-to-home television services to Malaysia and neighboring countries through its four Ku-bands and 12 C-band transponders. 1996-002A PAS 3R, also known as PANAMSAT 3R, is an American geostationary communications spacecraft that was launched by an Ariane 44L rocket from Kourou in French Guiana at 23:10 UT. After parking at 43.0-W longitude, the 2,900 kg spacecraft will provide TV and communication services to the north- and south American countries through its 16 C-band transponders. 1996-001B OAST FLYER ( NASA's Office of Aeronautical and Space Technology flier) is an American minispacecraft that was released from the shuttle STS 72. It carried four experimental packages: to measure spacecraft contamination levels at low-Earth orbits, to test GPS equipments, to test amateur radio gears, and finally to determine the effect of solar radiation on the explosives aboard satellite systems. Initial orbital parameters were period 90.6 min, apogee 310 km, perigee 302 km, and inclination 28.4 deg. 1996-001A STS 72 is an American shuttle spacecraft that was launched from Cape Canaveral at 09:41 UT. It carried, released, and retrieved the OAST FLYER. It also retrieved a long orbiting Japanese reusable spacecraft, SFU that had amassed astronomical data and material science products since March 1995. Initial orbital parameters were period 91.1 min, apogee 470 km, perigee 185 km, and inclination 28.4 deg. 1995-074A XTE (X-ray Timing Explorer) is an American astronomy spacecraft that was launched by a Delta-2 rocket from Cape Canaveral AFS at 13:48 UT. The 3,000 kg spacecraft carries three major instruments with large collecting areas, wide bandwidths, and high resolution. The PCA (Proportional Counter Array, of NASA/Goddard) consists of five xenon counters of area 7,000 sq-cm, field-of-view 1.0 deg, bandwidth 2-60 keV, resolution 1.0 microsecond, and sensitivity 0.1 milliCrab; the HEXTE (High Energy X-ray Timing Experiment of UC-San Diego) contains eight sodium/cesium iodide crystals of area 1,600 sq-cm, field-of-view 1.0 deg, bandwidth 20-200 keV, resolution 10 microsecond, and sensitivity 1.0 milliCrab; the ASM (All Sky Monitor of MIT) is an array of three xenon proportional counters of area 90 sq-cm, field-of-view 6 deg x 90 deg, bandwidth 2-10 keV, resolution 1.5 hr, and sensitivity 20 milliCrab. One Crab is the intensity of x-ray emission from the Crab nebula. Unlike the telescopes PCA and HEXTE, the ASM scans most of the sky every 1.5 hr in order to monitor about 75 bright sources; the positional resolution of ASM is about 0.05 deg x 0.25 deg. (Problems with the scanning mechanism are now being addressed.) Initial orbital parameters were period 96.1 min, apogee 583 km, perigee 565 km, and inclination 22.9 deg. Status of the experiments and some data may be accessed through the URL, http://heasarc.gsfc.nasa.gov/docs/xte/xte_1st.html 1995-073A ECHOSTAR 1 is an American geostationary communications spacecraft that was launched by a Long March 2E rocket from Xichang Center in Sichuan province, PRC at 11:51 UT. The 3,288 kg spacecraft carries 16 Ku-band transponders to enable direct broadcast communications and television channels through 0.5 meter dishes on the ground in the American continents. 1995-072B SKIPPER is a small American science spacecraft that was launched by a Molniya-M launcher from Baykonur cosmodrome at 06:45 UT. It has been reported to be a "sub-satellite" (of IRS 1-C), but no details are currently available on the Utah State University instrumentation package. Initial orbital parameters were period 101.0 min, apogee 813 km, perigee 803 km, and inclination 98.6 deg. 1995-072A IRS 1-C (Indian Remote Sensing satellite) is the third of the Indian natural resource imaging satellites and was launched by a Molniya-M launcher from Baykonur cosmodrome at 06:45 UT. The 1,250 kg spacecraft carries three instruments: PAN (PANchromatic camera of 6-meter resolution), multispectral LISS-3 (Linear Imaging Self-Scanner), and WIFS (WIde Field Sensor). Images from regions other than India will be downlinked and distributed through a commercial entity in USA. Initial parameters of the Sun-synchronous orbit were period 101.2 min, apogee 818 km, perigee 816 km, and inclination 98.6 deg. C. Spacecraft Particularly Suited for International Participation. 1. Spacecraft with essentially continuous radio beacons on frequencies less than 150 MHz, or higher frequencies if especially suited for ionospheric or geodetic studies. (NNSS denotes U.S. Navy Navigational Satellite System; an asterisk [*] indicates updated/new information since the last issue. Updates or corrections to the list are possible only with information from the user community.) THIS SECTION HAS NOT RECEIVED ANY USER INPUTS/UPDATES FOR A YEAR. THE CONTENT REMAINS THE SAME AS IN SPX-504. THE SECTION WILL BE REVIVED FROM TIME TO TIME WHEN A SIGNIFICANT VOLUME OF UPDATES WOULD BE AVAILABLE FROM THE USER COMMUNITY. HOWEVER, Geoff E. Perry, MBE, of the Kettering Group in Cornwall, England, has kindly provided the following additions and revisions to the list in SPX-504. 1991-019A (21152) 1 January 1996 Plane 2 NADEZHDA 3 150.00 MHz 400.00 MHz Inclination: 82.926 deg 1991-081A (21796) 1 January 1996 Plane 4 COSMOS 2173 149.97 MHz 399.92 MHz Inclination: 82.955 deg 1992-073A (22207) 1 January 1996 Plane 3 COSMOS 2218 149.94 MHz 399.84 MHz Inclination: 82.921 deg 1993-008A (22487) 1 January 1996 Plane 5 COSMOS 2233 150.03 MHz 400.08 MHz Inclination: 82.945 deg 1993-070A (22888) 1 January 1996 Plane 1 COSMOS 2266 149.97 MHz Inactive, and 399.92 MHz replaced by Inclination: 82.950 deg COSMOS 2327 1994-024A (23092) 1 January 1996 Plane 6 COSMOS 2279 149.94 MHz 399.84 MHz Inclination: 82.948 deg 1994-041A (23179) 1 January 1996 Plane 14 NADEZHDA 4 150.00 MHz 400.00 MHz Inclination: 82.944 deg 1995-002A (23463) 1 January 1996 Plane 13 TSIKADA 150.00 MHz 400.00 MHz Inclination: 82.925 deg 1995-012A (23526) 1 January 1996 Plane 2 COSMOS 2310 149.91 MHz 399.76 MHz Inclination: 82.939 deg 1995-032A (23603) 1 January 1996 Plane 11 COSMOS 2315 150.00 MHz 400.00 MHz Inclination: 82.905 deg 1996-004A (23773) 21 January 1996 Plane 1 COSMOS 2327 149.97 MHz 300.02 MHz Inclination: 82.981 deg 2. Global Positioning System satellites useful for navigational purposes and geodetic studies. ("NNN" denotes no national name. SPACEWARN Bulletin appreciates suggestions to update this list. An asterisk [*] denotes changes in this issue.) High precision (< 20 cm), GPS constellation tracking data obtained from the network of about 80 dedicated global stations that are of interest to geodetic study may be obtained through the following services provided by the International Association of Geodesy (IGS). FTP: igscb.jpl.nasa.gov [directory /igscb] WWW: http://igscb.jpl.nasa.gov/ E-mail: igscb@cobra.jpl.nasa.gov Designations, Epoch, Frequency, National Name and Orbit Information Remarks 1984-097A (15271) 24 November 1995 [Also known as NAVSTAR 10 USA 5 1575.42 MHz and GPS 10. PRN: 12.] 1227.60 MHz Inclination: 62.1 deg 1985-093A (16129) 24 November 1995 [Also known as NAVSTAR 11 USA 10 1575.42 MHz and GPS 11. PRN: 3.] 1227.60 MHz DEACTIVATED ON April 13, 94. Inclination: 65.2 deg 1989-013A (19802) 24 November 1995 [Also known as GPS 2-1 USA 35 1575.42 MHz (Second Generation Global 1227.60 MHz Positioning Satellite) and Inclination: 55.3 deg NAVSTAR 14. PRN: 14.] 1989-044A (20061) 24 November 1995 [Also known as GPS 2-2 and USA 38 1575.42 MHz NAVSTAR 13. PRN: 2.] 1227.60 MHz Inclination: 54.3 deg 1989-064A (20185) 24 November 1995 [Also known as GPS 2-3 and USA 42 1575.42 MHz NAVSTAR 16. PRN: 16.] 1227.60 MHz Inclination: 55.0 deg 1989-085A (20302) 24 November, 1995 [Also known as GPS 2-4 and USA 47 1575.42 MHz NAVSTAR 19. PRN: 19.] 1227.60 MHz Inclination: 53.3 deg 1989-097A (20361) 24 November 1995 [Also known as GPS 2-5 and USA 49 1575.42 MHz NAVSTAR 17. PRN: 17.] 1227.60 MHz Inclination: 55.9 deg 1990-008A (20452) 24 November 1995 [Also known as GPS 2-6 USA 50 1575.42 MHz and NAVSTAR 18. PRN: 18.] 1227.60 MHz Inclination: 54.0 deg 1990-025A (20533) 24 November 1995 [Also known as GPS 2-7 and USA 54 1575.42 MHz NAVSTAR 20. PRN: 20.] 1227.60 MHz Inclination: 54.7 deg 1990-068A (20724) 24 November 1995 [Also known as GPS 2-8 USA 63 1575.42 MHz and NAVSTAR 21. PRN: 21.] 1227.60 MHz Inclination: 54.9 deg 1990-088A (20830) 24 November 1995 [Also known as GPS 2-9 USA 64 1575.42 MHz and NAVSTAR 15. PRN: 15.] 1227.60 MHz Inclination: 55.8 deg 1990-103A (20959) 24 November 1995 [Also known as GPS 2-10, USA 66 1575.42 MHz GPS 2A-1, and NAVSTAR 23. 1227.60 MHz PRN: 23.] Inclination: 55.1 deg 1991-047A (21552) 24 November 1995 [Also known as GPS 2-11, USA 71 1575.42 MHz GPS 2A-2, and NAVSTAR 24. 1227.60 MHz PRN: 24.] Inclination: 56.1 deg 1992-009A (21890) 24 November 1995 [Also known as GPS 2-12, USA 79 1575.42 MHz GPS 2A-3, and NAVSTAR 25. 1227.60 MHz PRN: 25.] Inclination: 53.9 deg 1992-019A (21930) 24 November 1995 [Also known as GPS 2-13, USA 80 1575.42 MHz GPS 2A-4, and NAVSTAR 28. 1227.60 MHz PRN: 28.] Inclination: 55.7 deg 1992-039A (22014) 24 November 1995 [Also known as GPS 2-14, USA 83 1575.42 MHz GPS 2A-5, and NAVSTAR 26. 1227.60 MHz PRN: 26.] Inclination: 54.8 deg 1992-058A (22108) 24 November 1995 [Also known as GPS 2-15, USA 84 1575.42 MHz GPS 2A-6,and NAVSTAR 27. 1227.60 MHz PRN: 27.] Inclination: 54.1 deg 1992-079A (22231) 24 November 1995 [Also known as GPS 2-16, USA 85 1575.42 MHz GPS 2A-7, and NAVSTAR 32. 1227.60 MHz PRN: 1.] Inclination: 54.7 deg 1992-089A (22275) 24 November 1995 [Also known as GPS 2-17, USA 87 1575.42 MHz GPS 2A-8,and NAVSTAR 29. 1227.60 MHz PRN: 29.] Inclination: 54.6 deg 1993-007A (22446) 24 November 1995 [Also known as GPS 2-18, USA 88 1575.42 MHz GPS 2A-9, and NAVSTAR 22. 1227.60 MHz PRN: 22.] Inclination: 54.3 deg 1993-017A (22581) 24 November 1995 [Also known as GPS 2-19, USA 90 1575.42 MHz GPS 2A-10, and NAVSTAR 31. 1227.60 MHz PRN: 31.] Inclination: 55.2 deg 1993-032A (22657) 24 November 1995 [Also known as GPS 2-20, USA 91 1575.42 MHz GPS 2A-11, and NAVSTAR 37. 1227.60 MHz PRN: 7.] Inclination: 55.2 deg 1993-042A (22700) 24 November 1995 [Also known as GPS 2-21, USA 92 1575.42 MHz GPS 2A-12, and NAVSTAR 39. 1227.60 MHz PRN: 9.] Inclination: 54.3 deg 1993-054A (22779) 24 November 1995 [Also known as GPS 2-22, USA 94 1575.42 MHz GPS 2A-13, and NAVSTAR 35. 1227.60 MHz PRN: 5.] Inclination: 54.5 deg 1993-068A (22877) 24 November 1995 [Also known as GPS 2-23, USA 96 1575.42 MHz GPS 2A-14,and NAVSTAR 34. 1227.60 MHz PRN: 4.] Inclination: 55.5 deg 1994-016A (23027) 24 November 1995 [Also known as GPS 2-24, USA 100 1575.42 MHz GPS 2A-15,and NAVSTAR 36. 1227.60 MHz PRN: 6.] Inclination: 55.1 deg The GPS 2-NN series orbit in six distinct planes that are about 60 deg apart. Each plane has four "slots." Following are the 2-NN members in the planes/ slots. The RAAN decreases or increases by about 1.0 deg each month; below are their approximate RAAN longitudes in November 95. PLANE RAAN OF PLANE SLOT-1 SLOT-2 SLOT-3 SLOT-4 A 235 2-21 2-12 2-15 2-04 B 296 2-18 2-07 2-02 2-22 C 357 2-24 2-13 2-19 2-20 D 62 2-11 2-09 2-05 2-23 E 119 2-01 2-08 2-03 2-10 F 177 2-16 2-14 2-06 2-17 3. Russian Global Navigational (Positioning) Spacecraft, GLONASS constellation. (SPACEWARN requests updates/additions from readers to this list. Entries marked "*" are updates or additions to the list.) All GLONASS spacecraft are in the general COSMOS series. The COSMOS numbers (nnnn) invoked by USSPACECOM have often differed from the numbers (NNNN) associated in Russia; when different, the USSPACECOM COSMOS numbers are shown in parentheses. The corresponding GLONASS numbers are Russian numbers, followed by the numbers in parentheses that are sometimes attributed to them outside Russia. The operating frequencies in MHz are computed from the channel number K. Frequencies (MHz) are L1 = 1602.0 + 0.5625K, and L2 = 1246.0 + 0.4375K. COSMOS NNNN(nnnn) ID, (CAT#) EPOCH,FREQUENCY,ORBIT COMMENT, GLONASS # COSMOS 2111 23 November 1995 GLONASS 249 (49) 90-110C (21008) Channel: 23 Inclination: 65.1 RAAN: 091.8 COSMOS 2178 23 November 1995 GLONASS 769 (54) 92-005B (21854) Channel: 2 Inclination: 65.1 RAAN: 091.5 COSMOS 2179 23 November 1995 GLONASS 771 (55) 92-005C (21855) Channel: 23 Inclination: 65.1 RAAN: 091.4 COSMOS 2204 (2205) 23 November 1995 GLONASS 756 (57) 92-047B (22057) Channel: 24 Inclination: 64.8 RAAN: 330.9 COSMOS 2206 (2204) 23 November 1995 GLONASS 774 (56) 92-047A (22056) Channel: 1 Inclination: 64.8 RAAN: 330.8 COSMOS 2235 (2336) 23 November 1995 GLONASS 759 (61) 93-010C (22514) Channel: 21 Inclination: 65.1 RAAN: 091.3 COSMOS 2236 (2235) 23 November 1995 GLONASS 757 (60) 93-010B (22513) Channel: 5 Inclination: 65.1 RAAN: 091.3 COSMOS 2275 (2277) 23 November 1995 GLONASS 758 (64) 94-021C (23045) Channel: 10 Inclination: 64.7 RAAN: 331.2 COS 2276 (2275) 23 November 1995 GLONASS 760 (62) 94-021A (23043) Channel: 24 Inclination: 64.7 RAAN: 331.2 COSMOS 2277 (2276) 23 November 1995 GLONASS 761 (63) 94-021B (23044) Channel: 3 Inclination: 64.7 RAAN: 331.2 COSMOS 2287 23 November 1995 GLONASS 767 (65) 94-050A (23203) Channel: 22 Inclination: 64.8 RAAN: 211.2 COSMOS 2288 (2289) 23 November 1995 GLONASS 770 (67) 94-050C (23205) Channel: 9 Inclination: 64.8 RAAN: 211.2 COSMOS 2289 (2288) 23 November 1995 GLONASS 775 (66) 94-050B (23204) Channel: 22 Inclination: 64.8 RAAN: 211.2 COSMOS 2294 (2296) 23 November 1995 GLONASS 762 (70) 94-076C (23398) Channel: 12 Inclination: 65.0 RAAN: 091.4 COSMOS 2295 (2294) 23 November 1995 GLONASS 763 (68) 94-076A (23396) Channel: 21 Inclination: 65.0 RAAN: 091.4 COSMOS 2296 (2295) 23 November 1995 GLONASS 764 (69) 94-076B (23397) Channel: 13 Inclination: 65.0 RAAN: 091.3 COSMOS 2307 23 November 1995 GLONASS 765 (73) 95-009C (23513) Channel: 1 Inclination: 64.7 RAAN: 331.4 COSMOS 2308 23 November 1995 GLONASS 766 (71) 95-009A (23511) Channel: 10 Inclination: 64.7 RAAN: 331.5 COSMOS 2309 23 November 1995 GLONASS 777 (72) 95-009B (23512) Channel: 3 Inclination: 64.7 RAAN: 331.5 COSMOS 2316 23 November 1995 GLONASS 780 (74) 95-037A (23620) Channel: 4 Inclination: 64.9 RAAN: 211.0 COSMOS 2317 23 November 1995 GLONASS 781 (75) 95-037B (23621) Channel: 9 Inclination: 64.8 RAAN: 211.0 COSMOS 2318 *17 January 1996 GLONASS 785 (76) 95-037C (23622) Channel: 4 Unusable since Inclination: 64.8 14 Jan 96. RAAN: 211.0 COSMOS 2323 25 December 1995 GLONASS 776 (??) 95-068A (23734) Channel: 6 Inclination: 64.8 RAAN: 211.0 COSMOS 2324 25 December 1995 GLONASS 778 (??) 95-068B (23735) Channel: 11 Spare. Inclination: 64.8 RAAN: 211.0 COSMOS 2325 25 December 1995 GLONASS 782 (??) 95-068C (23736) Channel: 6 Inclination: 64.8 RAAN: 211.0 The GLONASS NNN series orbit in three distinct planes that are 120 deg apart. Each plane has eight "slots". Following are the members of the planes/slots. Plane 1 Plane 2 Plane 3 slot-1 771 slot-9 776/778 slot-17 760 slot-2 757 slot-10 781 slot-18 758 slot-3 763 slot-11 785 slot-19 777 slot-4 762 slot-12 767 slot-20 765 slot-5 249 slot-13 782 slot-21 756 slot-6 764 slot-14 770 slot-22 766 slot-7 759 slot-15 780 slot-23 761 slot-8 769 slot-16 775 slot-24 774 CONTACT: Coordinational Scientific Information Center(CSIC) Russian Space Forces E-mail: sfcsic@iki3.bitnet; sfcsic@iki3.iki.rssi.ru; sfcsic@mx.iki.rssi.ru Home Page WWW.IKI: http://www.rssi.ru/SFCSIC/SFCSIC_main.html 4. Actual decays/landings of payload spacecraft and rocket bodies (R/B) only. No further information is available. Designations Common Name 1996 1995-004B (23652) R/B Ariane 44P 13 Jan 1996 1995-073B (23755) R/B Long March 06 Jan 1995-070B (23745) R/B SL-4 21 Dec 1995 1994-088A (23453) COSMOS 2305 16 Dec 1995-068D (23737) R/B SL-12 15 Dec 5. Miscellaneous Items. (This section contains information/data that are entered on occasion and may not be repeated in each issue of the SPACEWARN Bulletin.) *COSMOS 2326 was reported in SPX.506 as a Russian military spacecraft; however, it carries a scientific instrumenet also to monitor Galactic gamma rays. NSSDC/WDC-A-R&S is an archival center for science data from many spacecraft. Some data are on line for electronic access. Please contact the Request Office, NSSDC, Code 633, NASA/GSFC, Greenbelt, Maryland 20771, U.S.A., for specific information (REQUEST@NSSDCA.GSFC.NASA.GOV). Precomputed trajectory files and orbital parameters of many magnetospheric and heliospheric science-payload spacecraft may be FTP'ed from NSSDC's ANON_DIR:[000000.ACTIVE] and its several subdirectories. (See the last page of the bulletin for the access method; a file in the ACTIVE directory named AAREADME.DOC outlines the contents.) It can also be accessed through WWW URL: http://sscop1.gsfc.nasa.gov/ssc.html This html also enables executing several codes related to the orbits of many geocentric science payload spacecraft. The codes related to the heliospheric spacecraft trajectories can be executed through URL: http://nssdc/space/helios/heli.html ERRATUM: In SPX.472 the inclination of the spacecraft OXP-1 (1993-009A) was reported as 99.7 deg. The correct inclination is 24.9 deg, either at launch or soon after. SPACEWARN Bulletin ------------------ The Bulletin is intended to serve as an international communication medium for the rapid distribution of information on satellites and space probes. The material it contains is based on guidelines in the COSPAR Guide to Rocket and Satellite Information and Data Exchange, COSPAR Transactions #8, December 1972, and various Committee on Space Research (COSPAR) resolutions. Hard copy recipients and electronic accessers are encouraged to disseminate the bulletin to interested individuals and institutions in their regions or countries. All bulletins beginning with January 1991 (SPX-447) are now available on line; the SPX number increases by one for each succeeding month (for example, the January 1993 bulletin is SPX-471). Through DECnet: At prompt type: copy nssdca::anon_dir:[000000.active.spx]spx.471 Through FTP: At prompt type: ftp nssdca.gsfc.nasa.gov At the next prompt type: anonymous At the PASSWORD (NSSDCA.GSFC.GOV.ANONYMOUS) prompt hit: return At the next prompt type: get anon_dir:[000000.active.spx]spx.471 spx.471 Other subdirectories in [000000.active] carry many files of interest on science payload spacecraft. The bulletin may also be accessed through the World Wide Web (WWW). The URL is http://nssdc.gsfc.nasa.gov/spacewarn/spacewarn.html. Users are urged to submit their comments and suggestions for the improvement of this bulletin to SPACEWARN Bulletin, World Data Center-A for Rockets and Satellites, Code 633, Goddard Space Flight Center, Greenbelt, Maryland 20771 U.S.A. Categories of Spacecraft To improve the effectiveness of international distribution of satellite and space probe information via the SPACEWARN system, spacecraft are identified in categories according to the urgency and detail of information needed by the scientific community as follows: CATEGORY 1: Spacecraft that carry essentially continuous telemetry or radio beacons, usually on frequencies less than 150 MHz. CATEGORY 2: GPS constellation of positioning/navigational spacecraft. CATEGORY 3: GLONASS constellation of positioning/navigational spacecraft. CATEGORY 4: Occassionally, a list of bright, orbiting objects of visual magnitude 4 or brighter. The bulletin also carries launch dates, international ID's and USSPACECOM catalog numbers, followed by a brief outline of the payload and orbital parameters, re-entry of major objects, and miscellaneous sections. These data are based on launch announcements or on information received from individuals, launching authorities, FBIS and USSPACECOM telexes, and news magazines.