SEY1 Site Information Form International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : David A. Stowers Date Prepared : 2001-07-09 Report Type : UPDATE If Update: Previous Site Log : sey10107.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Republic of Seychelles Permanent Four Character ID : SEY1 Monument Inscription : 4016-S IERS DOMES Number : 39801M001 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 : 1995-05-15 Geologic Characteristic : Bedrock Bedrock Type : Igneous Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : (multiple lines) : Monument is a 1" Stainless steel plate : mounted on a 7" O.D. steel pipe (wellhead) : grouted to provide mechanical coupling to : bedrock (granite) to a depth of 100 m. : The mark consists of a dimple on the plate. 2. Site Location Information City or Town : La Misere State or Province : Mahe Island Country : Seychelles Tectonic Plate : East African Approximate Position (ITRF) X coordinate (m) : 3602870.7996 Y coordinate (m) : 5238174.333 Z coordinate (m) : -516275.5359 Latitude (N is +) : -044025.32 Longitude (E is +) : +0552845.84 Elevation (m,ellips.) : 538.2248 Additional Information : Site is collocated with the seismic station : of UCSD on the lower pad of the former Air : Force Tracking Station,10km NW of the : International Airport at an altitute of 575m : above sea level. 3. GNSS Receiver Information 3.1 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T334 Firmware Version : 3.2 link 3/9/1995 Elevation Cutoff Setting : (deg) Date Installed : 1995-05-15 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Serial Port B connected to computer's serial : port (COM3). 3.2 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T391 Firmware Version : 3.2 LINK 3/9/1995 Elevation Cutoff Setting : (deg) Date Installed : 1996-08-25 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.3 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T194 Firmware Version : 3.2 Elevation Cutoff Setting : (deg) Date Installed : 1998-08-13 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Standard 8-channel T-Rogue receiver, 10Mb : flashcard, 30 sec sampling rate. 3.4 Receiver Type : ROGUE SNR-8000 Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : T194 Firmware Version : 3.2.32.8 Elevation Cutoff Setting : (deg) Date Installed : 1999-04-29 Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Serial Port B connected to computer's serial : port (COM3). 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 : 427 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.5011 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 : 1995-05-15 Date Removed : 1996-02-01 Additional Information : Located within a PVC enclosure. 4.2 Antenna Type : AOAD/M_T Serial Number : 487 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.5011 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 : 1996-02-01 Date Removed : 1998-08-13 Additional Information : Located within a PVC enclosure. 4.3 Antenna Type : AOAD/M_T DOME Serial Number : 233 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 1.2065 Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : 6 east of mag North Antenna Radome Type : DOME Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1998-08-13 Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : Antenna is within a PVC enclosure; 26" clear : raydome protects antenna. The antenna is : screwed onto a modified UNAVCO spike mount : with a fixed height of 1.2065m (the rod was : machined at 47.500"). 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 : none Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : Tied Marker DOMES Number : Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 0 dy (m) : 0 dz (m) : 0 Accuracy (mm) : Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : 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 Date Removed : Date Installed : 13-AUG-1998 7.1 Instrumentation Type : Seismic Status : Permanent Effective Dates : Notes : UCSD operates a seismic station collocated : with the GPS site. 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 Date Removed : Date Installed : 8.1.1 Humidity Sensor Model : none Manufacturer : Serial Number : Data Sampling Interval : Accuracy (% rel h) : Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : Notes : 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) Date Removed : Date Installed : 8.2.1 Pressure Sensor Model : none Manufacturer : Serial Number : Data Sampling Interval : Accuracy : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : Notes : 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) Date Removed : Date Installed : 8.3.1 Temp. Sensor Model : none Manufacturer : Serial Number : Data Sampling Interval : Accuracy : Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : Notes : 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) Date Removed : Date Installed : 8.4.1 Water Vapor Radiometer : none Manufacturer : Serial Number : Distance to Antenna : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : Notes : 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 : 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 : Seychelles National Oil Company Preferred Abbreviation : (A10) Mailing Address : P.O. Box 230 : Maison du Peuple : Victoria, Mahe : Republic of Seychelles Primary Contact Contact Name : Patrick Samson Telephone (primary) : +248-225182 Telephone (secondary) : Fax : +284-225177 E-mail : snoc@seychelles.net Secondary Contact Contact Name : Muditha Gunatilake Telephone (primary) : +248 324325 Telephone (secondary) : Fax : +248 324565 E-mail : muditha@seychelles.net Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : JPL Preferred Abbreviation : (A10) Mailing Address : 4800 Oak Grove Drive : Pasadena, CA : USA 91109 Primary Contact Contact Name : David A. Stowers Telephone (primary) : 818-354-7055 Telephone (secondary) : Fax : 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 : www.unavco.ucar.edu/network Hardcopy on File Site Map : (Y or URL) Site Diagram : Y Horizon Mask : (Y or URL) Monument Description : Y Site Pictures : Y Additional Information : (multiple lines) Antenna Graphics with Dimensions TURBOROGUE: AOAD/M_T ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 BPA=ARP <-- 0.381 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering TGP: Top of Ground Plane BGP: Bottom of Ground Plane TPA: Top of Preamplifier BPA: Bottom of Preamplifier TOP: Top of Pole