SEYG Site Information Form (site log) International GNSS Service See Instructions at: ftp://igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Jean-Paul CARDALIAGUET Date Prepared : 2017-07-31 Report Type : UPDATE If Update: Previous Site Log : seyg_20161216.log Modified/Added Sections : 3.7, 3.8, 12 1. Site Identification of the GNSS Monument Site Name : MAHE Four Character ID : SEYG Monument Inscription : None IERS DOMES Number : 39801M004 CDP Number : Monument Description : concrete pillar and 40 cm steel antenna mount Height of the Monument : 1.5 m Monument Foundation : concrete pad with steel reenforcement Foundation Depth : 1.5 m Marker Description : brass hemispheric mark top of pillar Date Installed : 2012-06-20T00:00Z Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC Bedrock Condition : WEATHERED Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : 2. Site Location Information City or Town : Pointe Larue State or Province : Mahe Island Country : Seychelles Tectonic Plate : AFRICAN Approximate Position (ITRF) X coordinate (m) : 3597836.3481 Y coordinate (m) : 5240884.4253 Z coordinate (m) : -516781.0937 Latitude (N is +) : -044043.434586 Longitude (E is +) : +0553150.269913 Elevation (m,ellips.) : -37.085 Additional Information : coordinates ITRF2008 EPOCH 2012.0 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 77748 Firmware Version : 4.60 Elevation Cutoff Setting : 3 deg Date Installed : 2012-06-20T00:00Z Date Removed : 2013-05-13T12:25Z Temperature Stabiliz. : 25 C +/- 5 C Additional Information : 3.2 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 77748 Firmware Version : 4.70 Elevation Cutoff Setting : 3 deg Date Installed : 2013-05-13T12:30Z Date Removed : 2014-06-12T08:21Z Temperature Stabiliz. : 25 C +/- 5 C Additional Information : 3.3 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5133K77748 Firmware Version : 4.85 Elevation Cutoff Setting : 3 deg Date Installed : 2014-06-12T08:21Z Date Removed : 2015-06-16T12:48Z Temperature Stabiliz. : 25 C +/- 5 C Additional Information : 3.4 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5133K77748 Firmware Version : 5.01 Elevation Cutoff Setting : 3 deg Date Installed : 2015-06-16T13:05Z Date Removed : 2015-10-21T12:09Z Temperature Stabiliz. : 25 C +/- 5 C Additional Information : 3.5 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5133K77748 Firmware Version : 5.01 Elevation Cutoff Setting : 0 deg Date Installed : 2015-10-21T12:10Z Date Removed : 2016-08-10T12:07Z Temperature Stabiliz. : 25.0 +/- 5.0 Additional Information : 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5133K77748 Firmware Version : 5.14 Elevation Cutoff Setting : 0 deg Date Installed : 2016-08-10T12:15Z Date Removed : 2016-12-16T10:39Z Temperature Stabiliz. : 25.0 +/- 5.0 Additional Information : 3.7 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5133K77748 Firmware Version : 5.15 Elevation Cutoff Setting : 0 deg Date Installed : 2016-12-16T10:45Z Date Removed : 2017-07-31T15:07Z Temperature Stabiliz. : 25.0 +/- 5.0 Additional Information : 3.8 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5133K77748 Firmware Version : 5.22 Elevation Cutoff Setting : 0 deg Date Installed : 2017-07-31T15:15Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : 25.0 +/- 5.0 Additional Information : 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+SBAS) Serial Number : (A20, but note the first A5 is used in SINEX) 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 : TRM59800.00 NONE Serial Number : 5037353964 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.5193 Marker->ARP North Ecc(m) : -0.0011 Marker->ARP East Ecc(m) : -0.0010 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : TRIMBLE Antenna Cable Length : 55 m Date Installed : 2012-06-20T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : 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.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) : (m) dy (m) : (m) dz (m) : (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 : 2012-06-20/CCYY-MM-DD Notes : 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 : 2001-06-20/CCYY-MM-DD Notes : FFour character ID : MAHB : IERS DOMES number : 39801S005 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.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.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.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) 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) 8.4.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.x Other Instrumentation : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degradations : (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/BUILDINGS/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 Meteorological Services Preferred Abbreviation : NMS Mailing Address : Primary Contact Contact Name : Jean Paul Dodin Telephone (primary) : Telephone (secondary) : Fax : E-mail : j.dodin@meteo.gov.sc Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : Centre National d'Etudes Spatiales Preferred Abbreviation : CNES Mailing Address : CNES - 18, avenue Edouard Belin : 31401 Toulouse cedex 09 - France Primary Contact Contact Name : Jean-Paul Cardaliaguet Telephone (primary) : (33) 5.61.27.31.98 Telephone (secondary) : (33) 5.61.28.35.22 Fax : E-mail : jean-paul.cardaliaguet@cnes.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : generic email : regina.operation@cnes.fr : SEYG is operated jointly by CNES and IGN 13. More Information Primary Data Center : IGN Secondary Data Center : CDDIS URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions TRM59800.00 ----- / | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3810 --> ARP => +====|=|====+ <---------------+ <- 0.000 BPA | | | FCD => ============= | || || | || || | || || | || || | +---||---------||---+ | | | | | | | | Metal tower | | | | | | | | | | | | | | | | | ______|___________________|__________ <---+ | | | Concrete pad | 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 All dimensions are in meters.