CZTG00ATF Site Information Form (site log v2.0) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt 0. Form Prepared by (full name) : SONEL technical team (sonel-tech@univ-lr.fr) Date Prepared : 2026-03-19 Report Type : UPDATE If Update: Previous Site Log : cztg00atf_20250224.log Modified/Added Sections : 3.7, 3.8 1. Site Identification of the GNSS Monument Site Name : CROZET ARCHIPELAGO (POSSESSION ISLAND) Nine Character ID : CZTG00ATF Monument Inscription : None IERS DOMES Number : 91301M002 CDP Number : (A4) Monument Description : concrete pillar and 40 cm steel antenna mount Height of the Monument : 1 m Monument Foundation : CONCRETE BLOCK Foundation Depth : 1 m Marker Description : brass hemispheric mark on top of pillar Date Installed : 2014-03-14T12:12Z Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (0 cm/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) 2. Site Location Information City or Town : Alfred-Faure State or Province : TAAF, Terres Australes et Antarctiques : Francaises Country or Region : ATF Tectonic Plate : ANTARCTIC Approximate Position (ITRF) X coordinate (m) : 2720007.175 Y coordinate (m) : 3463382.933 Z coordinate (m) : -4598612.946 Latitude (N is +) : -462554.83 Longitude (E is +) : +0515119.00 Elevation (m,ellips.) : 202.8 Additional Information : The site is located in Alfred Faure research : base on Possession Island. : 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1830323 Firmware Version : 3.03.1139 Elevation Cutoff Setting : 3 deg Date Installed : 2014-03-14T12:00Z Date Removed : 2016-05-02T04:50Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.2 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830323 Firmware Version : 3.22.1818 Elevation Cutoff Setting : 3 deg Date Installed : 2016-05-02T04:50Z Date Removed : 2016-09-17T12:00Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.3 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830323 Firmware Version : 4.00.335 Elevation Cutoff Setting : 0 deg Date Installed : 2016-09-17T12:00Z Date Removed : 2018-11-15T00:00Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 5439R49344 Firmware Version : 5.33 Elevation Cutoff Setting : 0 deg Date Installed : 2018-11-15T00:00Z Date Removed : 2019-03-24T00:00Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 5439R49344 Firmware Version : 5.37 Elevation Cutoff Setting : 0 deg Date Installed : 2019-03-24T00:00Z Date Removed : 2020-02-26T00:00Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 5439R49344 Firmware Version : 5.44 Elevation Cutoff Setting : 0 deg Date Installed : 2020-02-26T00:00Z Date Removed : 2021-06-22T00:00Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 5950R40228 Firmware Version : 6.05 Elevation Cutoff Setting : 0 deg Date Installed : 2021-06-22T00:00Z Date Removed : 2026-03-19T12:00Z Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.8 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 5950R40228 Firmware Version : 6.43 Elevation Cutoff Setting : 0 deg Date Installed : 2026-03-19T12:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : 10.0 +/- 5.0 Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+IRNSS+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 : LEIAR20 LEIM Serial Number : 16247017 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.4400 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIM Radome Serial Number : unknown Antenna Cable Type : LEICA Antenna Cable Length : 30 m Date Installed : 2014-03-14T12:00Z 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.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 : (if external) Effective Dates : 2014-03-14/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 : TIDE GAUGE Status : PERMANENT Effective Dates : 1995-11-18/2015-09-30 Notes : ROSAME network : Five character ID : CROZE : Currently out of order : 7.2 Instrumentation Type : DORIS Status : PERMANENT Effective Dates : 2009-03-27/CCYY-MM-DD Notes : Four character ID : CRQB : IERS DOMES number : 91301S003 : Ground mark DOMES number : 91301M00 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 : Réseau d'Observations Subantarctique et : Antarctique du niveau de la MEr Preferred Abbreviation : ROSAME Mailing Address : avenue Edouard Belin 32 : 31400 Toulouse : France Primary Contact Contact Name : NIVMER Telephone (primary) : Telephone (secondary) : Fax : E-mail : nivmer@services.cnrs.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : Laboratoire d'Etudes en Géophysique et : Océanographie Spatiales Preferred Abbreviation : LEGOS Mailing Address : avenue Edouard Belin 32 : 31400 Toulouse : France Primary Contact Contact Name : NIVMER Telephone (primary) : Telephone (secondary) : Fax : E-mail : nivmer@services.cnrs.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : SONEL Secondary Data Center : URL for More Information : www.sonel.org Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y or URL) Horizon Mask : (Y or URL) Monument Description : (Y or URL) Site Pictures : (Y or URL) Additional Information : www.sonel.org/spip.php?page=gps&idStation=3452 Antenna Graphics with Dimensions Dome not shown. source: http://igscb.jpl.nasa.gov/igscb/station/general/antenna.gra LEIAR20 +-----+ <-- 0.1613 / \ | | +----------------+-----------+----------------+ <-- 0.1113 TCR | | | | | | | | +-+---------------------------------------------+-+ +------------------+-----------+------------------+ <-- 0.0323 BCR | | | | +-----x-----+ <-- 0.0013 BPA +-+ <-- 0.0000 BAM=ARP <-- 0.3200 -->