Site Number: 96
Current Site Name: EASTER ISLAND
Other Site Name: ISLA DE PASCUA
Location: EASTER ISLAND, CHILE
Geographic Region: PACIFIC
Tectonic Plate: NAZCA
Primary Scientific Purposes: MEASUREMENTS SUPPORTING THE DETERMINATION OF REGIONAL DEFORMATION OF GLOBAL PLATE MOTION, POLAR MOTION, AND EARTH ROTATION.
Site Description: THE SITE IS LOCATED ON THE SOUTHWEST PART OF THE SOUTH PACIFIC CHILEAN ISLAND, EASTER ISLAND. THE FACILITY IS LOCATED INLAND ABOUT 2.5 MI NORTHEAST OF MATAVERI AIRPORT. A RAISED PIER WAS CONSTRUCTED AT THIS SITE TO ACCOMMODATE THE UPGRADED TLRS-2. THE SYSTEM IS HOUSED IN A BUILDING SPECIFICALLY DESIGNED FOR TLRS-2 OPERATIONS. TO REACH THE STATION FROM THE MAIN ENTRANCE TO THE MATAVERI AIRPORT, PROCEED SOUTHEAST ALONG A DIRT ROAD THAT PARALLELS THE RUNWAY FOR 1.2 KM TO A FORK IN THE ROAD. BEAR LEFT (NORTHEAST) ONTO THE LEFT FORK AND PROCEED 4.1 KM TO THE ENTRANCE ROAD TO THE NASA SITE ON THE LEFT (NORTH).
Site Topo Map: 1:10000 SCALE MAPS (6) COVER THE ISLAND, PRODUCED BY FURZA AEREA DE CHILE, SERVICES AEROFOTOGRAMETRICO, DATED 1965.
Geological Province: EAST SOUTH PACIFIC ISLAND, ABOUT 500 KILOMETERS EAST OF THE CREST OF THE EAST PACIFIC RISE.
Local Geology: THE ISLAND IS A PRODUCT OF THE THREE PRINCIPLE VOLCANIC STRUCTURES.
Comments: SOME EVIDENCE SUGGESTS THAT THE ISLAND IS ON A MICROPLATE AT THE EDGE OF THE NAZCA PLATE.
Site Number: 96
Current Site Name: EASTER ISLAND
Location: EASTER ISLAND, CHILE
Number of Observing Monuments: 3
Surveyed into National Network? NO
Monument Number: 4008
Type of Monument: 0.455 METER DIAMETER STAINLESS STEEL PLATE
Monument Inscription: FLINN GPS STATION MARK EASTER ISLAND JPL 4008-S 1992
Systems Using Monument: GPS
Latitude: S 27 08' 53.55080"
Longitude: W 109 22' 59.88525"
Elevation: 118.140 meters
Height Above Ellipsoid: 115.528 meters
Survey Source/Date: ATSC / 01-JUL-93
Datum/Ellipsoid: ITRF-90
Comments: STEEL PLATE SET FLUSH IN CENTER OF 0.610 M DIAMETER CONCRETE MONOLITH THAT PROJECT 0.5 M ABOVE THE GROUND; PERM. GPS MARK
Differential Coordinates FROM Observing Monument 4008 TO Reference Monuments and Other Observing Monuments
Data Source: ATSC
Mon. Number Monument Inscription X Y Z -- NONE (DORIS REFERENCE POINT) -41.9743 -9.1431 31.8209 -- SATRIG 020 USCGS 1967 -3630.7777 2710.2901 -2874.9886
Mon. Number Monument Inscription North East Up -- NONE (DORIS REFERENCE POINT) 38.6077 -36.5601 5.5513 -- SATRIG 020 USCGS 1967
Site Number: 96
Current Site Name: EASTER ISLAND
Location: EASTER ISLAND, CHILE
Monument Number: 7061
Type of Monument: NASA-GSFC STATION DISK
Monument Inscription: 7061-1983
Systems Using Monument: TLRS-2
Latitude: S 27 08' 52.15341"
Longitude: W 109 23' 0.82594"
Elevation: 119.720 meters
Height Above Ellipsoid: 114.968 meters
Survey Source/Date: BFEC ADJUSTMENT 89-03-14 / 14-MAR-89
Datum/Ellipsoid: WGS-84 (TRANSFORMED)
Comments: THIS MONUMENT WAS DESTROYED DURING THE CONSTRUCTION OF THE TLRS-2 MONUMENT AND SHELTER. 7097 REPLACES THIS MONUMENT.
Differential Coordinates FROM Observing Monument 7061 TO Reference Monuments and Other Observing Monuments
Data Source: BFEC
Mon. Number Monument Inscription X Y Z 7097 7097-1986 -0.4240 -1.2038 -0.6497 -- 7061 RM-1 -13.2578 -9.7189 23.6869 -- 7061 RM-2 27.5191 -6.8754 -4.9437 -- 7061 RM-3 -14.0829 17.1072 -18.4359
Mon. Number Monument Inscription North East Up 7097 7097-1986 0.0042 -0.0005 1.4321 -- 7061 RM-1 27.2685 -9.2804 1.2653 -- 7061 RM-2 -5.6075 28.2411 -0.1008 -- 7061 RM-3 -21.6353 -18.9626 -1.7879
Site Number: 96
Current Site Name: EASTER ISLAND
Location: EASTER ISLAND, CHILE
Monument Number: 7097
Type of Monument: NASA BRASS DISK
Monument Inscription: 7097-1986
Systems Using Monument: TLRS-2
Latitude: S 27 08' 52.14650"
Longitude: W 109 23' 0.83160"
Elevation: 121.150 meters
Height Above Ellipsoid: 118.539 meters
Survey Source/Date: ATSC / 01-JUL-93
Datum/Ellipsoid: ITRF-90
Comments: THIS MONUMENT REPLACES MONUMENT 7061. THIS MONUMENT IS 4' X 4' TO ACCOMMODATE THE NEW CONFIGURATION OF TLRS-2.
Differential Coordinates FROM Observing Monument 7097 TO Reference Monuments and Other Observing Monuments
Data Source: ATSC
Mon. Number Monument Inscription X Y Z -- 7061 RM-1 1983 -12.8344 -8.5149 24.3375 -- 7061 RM-2 1983 27.9432 -5.6718 -4.2938 -- 7061 RM-3 1983 -13.6591 18.3112 -17.7862 -- 7097 RM-3 1993 -19.8292 17.5088 -13.1885 -- 7097 RM-4 1986 -17.2080 15.8992 -12.0356 -- JPL 4008-S 1992 32.0162 12.4845 -37.0883 -- NONE (DORIS REFERENCE POINT) -9.9581 3.3414 -5.2674 -- STATION 30730 -3677.2253 1938.0447 -1021.6047
Mon. Number Monument Inscription North East Up -- 7061 RM-1 1983 27.2650 -9.2806 -0.1673 -- 7061 RM-2 1983 -5.6115 28.2417 -1.5329 -- 7061 RM-3 1983 -21.6396 -18.9625 -3.2201 -- 7097 RM-3 1993 -16.2687 -24.5165 -2.8222 -- 7097 RM-4 1986 -14.9469 -21.5097 -2.7713 -- JPL 4008-S 1992 -43.2248 26.0573 -3.0118 -- NONE (DORIS REFERENCE POINT) -4.6171 -10.5027 2.5399 -- STATION 30730
Site Number: 96
Current Site Name: EASTER ISLAND
Location: EASTER ISLAND, CHILE
Monument Occupying Occupation Starting Ending Number System Designator Date Date 7061 TLRS-2 70611201 10-JAN-83 02-AUG-83 7061 TLRS-2 70611202 19-MAR-84 12-DEC-84 7097 TLRS-2 70971201 11-NOV-87 29-FEB-88 7097 TLRS-2 70971202 22-SEP-88 31-MAR-89 7097 TLRS-2 70971203 06-OCT-89 25-FEB-90 7097 TLRS-2 70971204 05-SEP-90 09-MAR-91 7097 TLRS-2 70971205 18-SEP-91 09-MAR-92 7097 TLRS-2 70971206 10-MAR-92 18-MAR-92 7097 TLRS-2 70971207 13-AUG-92 30-MAR-93 7097 TLRS-2 70971208 27-NOV-93 31-DEC-99
Monument Occupying Occupation Starting Ending Number System Designator Date DateNo Previous Occupations