SEY1 Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : David A. Stowers Date Prepared : 09-JUL-2001 Report Type : UPDATE Prepared Using : vi 1. Site Identification of the GPS Monument Site Name : Republic of Seychelles Permanent Four Character ID : SEY1 Monument Inscription : 4016-S IERS DOMES Number : 39801M001 CDP Number : none Date Installed : 15-May-1995 Geologic Characteristic : Bedrock Bedrock Type : Igneous Bedrock Condition : Fracture Spacing : Notes : Additional Information : 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 X coordinate (m) : 3602870.7996 Y coordinate (m) : 5238174.333 Z coordinate (m) : -516275.5359 Latitude (deg) : -4.6737 Longitude (deg) : 55.4794 Elevation (m) : 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. GPS Receiver Information 3.1 Receiver Type : ROGUE SNR-8000 Serial Number : T334 Firmware Version : 3.2 link 3/9/1995 Date Installed : 15-May-1995 Date Removed : Additional Information : Serial Port B connected to computer's serial : port (COM3). 3.2 Receiver Type : ROGUE SNR-8000 Serial Number : T391 Firmware Version : 3.2 LINK 3/9/1995 Date Installed : 25-Aug-1996 Date Removed : Additional Information : 3.3 Receiver Type : ROGUE SNR-8000 Serial Number : T194 Firmware Version : 3.2 Date Installed : 13-Aug-1998 Date Removed : Additional Information : Standard 8-channel T-Rogue receiver, 10Mb : flashcard, 30 sec sampling rate. 3.4 Receiver Type : ROGUE SNR-8000 Serial Number : T194 Firmware Version : 3.2.32.8 Date Installed : 29-Apr-1999 Date Removed : Additional Information : Serial Port B connected to computer's serial : port (COM3). 4. GPS Antenna Information 4.1 Antenna Type : AOAD/M_T Serial Number : 427 Antenna Height (m) : 0.5011 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : Date Installed : 15-May-1995 Date Removed : 01-Feb-1996 Additional Information : Located within a PVC enclosure. 4.2 Antenna Type : AOAD/M_T Serial Number : 487 Antenna Height (m) : 0.5011 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : Date Installed : 01-Feb-1996 Date Removed : 13-Aug-1998 Additional Information : Located within a PVC enclosure. 4.3 Antenna Type : AOAD/M_T DOME Serial Number : 233 Antenna Height (m) : 1.2065 Antenna Reference Point : BPA Degree Offset from North : 6 east of mag North Antenna Radome Type : Oversized 26" diameter Date Installed : 13-Aug-1998 Date Removed : 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"). 5. Local Site Ties 5.1 Monument Name : none Site Ref CDP Number : Site Ref Domes Number : Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : 0 dy (m) : 0 dz (m) : 0 Accuracy (mm) : Date Measured : Additional Information : 6. Frequency Standard 6.1 Standard Type : INTERNAL Frequency : Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 6.x Standard Type : (H-MASER/CESIUM/QUARTZ/INTERNAL/RUBIDIUM) Frequency : Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 7. Collocation Information 7.1 Instrumentation Type : Seismic Status : Permanent Date Installed : 13-AUG-1998 Date Removed : Notes : UCSD operates a seismic station collocated : with the GPS site. 7.x Instrumentation Type : (DORIS/GLONASS/PRARE/SLR/VLBI) Status : (PERMANENT/MOBILE) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1 Humidity Sensor Model : none Manufacturer : Data Frequency : Accuracy (% rel h) : Date Installed : Date Removed : Notes : 8.2 Pressure Sensor Model : none Data Frequency : Accuracy (mbar) : Height Diff to GPS (m) : Date Installed : Date Removed : Notes : 8.3 Temperature Sensor Model : none Manufacturer : Data Frequency : Accuracy (deg C) : Date Installed : Date Removed : Notes : 8.4 Water Vapor Radiometer : none Manufacturer : Distance to GPS (m) : Elev Diff to GPS (m) : Date Installed : Date Removed : Notes : 8.5 Other Instrumentation : 9. On-Site, Point of Contact Agency Information Agency : Seychelles National Oil Company 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 : 10. Responsible Agency (if differenct from 9.) Agency : JPL 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) 11. More Information URL for More Information : www.unavco.ucar.edu/network Hardcopy on File Site Map : Y Site Diagram : Y Horizon Mask : Monument Description : Y Site Pictures : Y Additional Information : 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