International GPS Service EISL Site Information Form See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Susan Jeffries Date Prepared : 1999-06-29 Report Type : UPDATE If Update: Previous Site Log : eisl9906.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Easter Island Laser Station Four Character ID : EISL Monument Inscription : JPL 4008-S IERS DOMES Number : 41703M003 CDP Number : None Monument Description : (PILLAR/BRASS PLATE/STEEL MAST/etc) Height of the Monument : (m) Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc) Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 1992-01-01 Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : (multiple lines) : East South Pacific Island, about 500 kilometers : east of the crest of the East Pacific Rise. : The island is the product of three principle : volcanic structures. : Some evidence suggests that the island is on a : microplate at the edge of the Nazca Plate. : Geological information from "NASA Space Geodesy : Program : Technical Memorandum 4482, March 1993, p99. : Exact date of installation in 1992 not known. 2. Site Location Information City or Town : Easter Island State or Province : Country : Chile Tectonic Plate : Pacific/Nazca Approximate Position (ITRF) X coordinate (m) : -1884951.8173 Y coordinate (m) : -5357595.8630 Z coordinate (m) : -2892890.5180 Latitude (N is +) : -270853.55 Longitude (E is +) : -1092259.87 Elevation (m,ellips.) : 114.5179 Additional Information : Latitude, Longitude and Elevation derived from : "IERS Technical Note 20, Results and Analysis : of the ITRF94" March 1996; Table 6 "ITRF94 : Class B Station Coordinates at Epoch 1993.0", : pT68. : The site is located on the southwest part of the : South Pacific Chilean island, Easter Island. The : facility is located inland about 2.5 miles : northeast of Mataveri Airport. : 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 : kilometers to a fork in the road. Bear left : (northeast) onto the left fork and proceed 4.1 : kilometers to the entrance road to the NASA site : on the left (north). This mark was established : for permanent GPS observations. The stainless : steel plate is set flush in the center of a : 0.610 meter diameter concrete monolith that : projects 0.5 meters above the ground. : Site information from "NASA Space Geodesy : Program : Technical Memorandum 4482, March 1993, p99 and : 102a. 3. GNSS Receiver Information 3.1 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T144 Firmware Version : 2.8 06/08/93 Elevation Cutoff Setting : (deg) Date Installed : 1994-05-01 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.2 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T362 Firmware Version : 3.2.32.4. Link 95/02/28 Elevation Cutoff Setting : (deg) Date Installed : 1997-08-01 Date Removed : 1999-06-01 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.3 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T362 Firmware Version : 3.2.32.8 Elevation Cutoff Setting : (deg) Date Installed : 1999-06-01T19:29Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : (A5) Firmware Version : (A11) Elevation Cutoff Setting : (deg) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 4. GNSS Antenna Information 4.1 Antenna Type : AOAD/M_T Serial Number : 144 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.061 Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : Antenna Radome Type : Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1994-05-01 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 4.2 Antenna Type : AOAD/M_T Serial Number : 407 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.061 Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : Antenna Radome Type : Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1997-08-01 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 4.x Antenna Type : (A20, from rcvr_ant.tab; see instructions) Serial Number : (A*, but note the first A5 is used in SINEX) Antenna Reference Point : (BPA/BCR/XXX from "antenna.gra"; see instr.) Marker->ARP Up Ecc. (m) : (F8.4) Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : (A4 from rcvr_ant.tab; see instructions) Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5. Surveyed Local Ties 5.1 Tied Marker Name : 7097-1986 Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : 7097 Tied Marker DOMES Number : 41703M002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -32.0162 dy (m) : -12.4845 dz (m) : 37.0883 Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : 1993-07-13 Additional Information : NASA brass disk. : This monument replaces Monument 7061. : Monument information from "NASA Space Geodesy : Program : Technical Memorandum 4482, March 1993, p101. 5.2 Tied Marker Name : Doris Ref Pt. Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : Tied Marker DOMES Number : 41703S008 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -41.9743 dy (m) : -09.1431 dz (m) : 31.8209 Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : 1993-07-13 Additional Information : 4-char ID 5.x Tied Marker Name : Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 6. Frequency Standard 6.1 Standard Type : INTERNAL Input Frequency : Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7. Collocation Information 7.1 Instrumentation Type : DORIS Status : PERMANENT Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7.x Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1.1 Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.1.x Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.2.1 Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : Accuracy : (mbar) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.2.x Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.3.1 Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : Accuracy : (deg C) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.4.1 Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.4.x Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.5.1 Other Instrumentation : (multiple lines) 8.5.x Other Instrumentation : 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degredations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDLINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : Center for Space Studies Preferred Abbreviation : (A10) Mailing Address : University of Chile : A. Prat 1171 : Casilla 411-3 : Santiago, Chile Primary Contact Contact Name : Eduardo Diaz Telephone (primary) : 56-2-6981702 Telephone (secondary) : Fax : 56-2-8441003 E-mail : edodiaz@cec.uchile.cl Secondary Contact Contact Name : Miguel Tapia Telephone (primary) : 56-2-6981702 Telephone (secondary) : Fax : 56-2-6981702 E-mail : mtapia@cec.uchile.cl Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : JPL Preferred Abbreviation : (A10) Mailing Address : 4800 Oak Grove Drive : Pasadena, CA 91109 USA Primary Contact Contact Name : David A. Stowers Telephone (primary) : 1-818-354-7055 Telephone (secondary) : Fax : 1-818-393-4965 E-mail : dstowers@jpl.nasa.gov Secondary Contact Contact Name : Network Engineer/UNAVCO Telephone (primary) : 303-497-8000 Telephone (secondary) : Fax : 303-497-8028 E-mail : ruud or kfeaux@unavco.ucar.edu Additional Information : Oivind Ruud (x8030) or Karl Feaux : (x8037) 13. More Information URL for More Information : Hardcopy on File Site Map : (Y or URL) Site Diagram : 12/94 Horizon Mask : 12/94 Monument Description : 12/94 Site Pictures : 12/94 Additional Information : (multiple lines) Antenna Graphics with Dimensions TURBOROGUE: DORNE MARGOLIN T ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | | | +------x------+ <-- 0.000 ARP <-- 0.381 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering