CHTG00FRA 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 : 2026-03-17 Report Type : UPDATE If Update: Previous Site Log : chtg00fra_20260105.log Modified/Added Sections : 3.4, 3.5, 3.6 1. Site Identification of the GNSS Monument Site Name : Cherbourg Nine Character ID : CHTG00FRA Monument Inscription : none IERS DOMES Number : 19622M001 CDP Number : none Monument Description : INOX TRIANGULAR PLATE ON TOP OF A METALLICPILLAR Height of the Monument : 2 m Monument Foundation : CONCRETE BUILDING Foundation Depth : (m) Marker Description : brass hemispheric mark Date Installed : 2015-02-20T00:00Z Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : 0 cm Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : VERY RIGID STEEL MAST 2. Site Location Information City or Town : Cherbourg State or Province : Basse Normandie Country or Region : FRA Tectonic Plate : EURASIAN Approximate Position (ITRF) X coordinate (m) : 4135853.968 Y coordinate (m) : -118088.137 Z coordinate (m) : 4837806.026 Latitude (N is +) : +493904.46 Longitude (E is +) : -0013807.73 Elevation (m,ellips.) : 54.9 Additional Information : Coordinates in RGF93 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1831200 Firmware Version : 3.11 Elevation Cutoff Setting : 0 deg Date Installed : 2015-02-20T00:00Z Date Removed : 2018-12-04T12:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.2 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1831200 Firmware Version : 4.31 Elevation Cutoff Setting : 0 deg Date Installed : 2018-12-04T12:00Z Date Removed : 2023-11-15T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.3 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1831200 Firmware Version : 4.70 Elevation Cutoff Setting : 0 deg Date Installed : 2023-11-15T00:00Z Date Removed : 2025-07-07T12:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+SBAS Serial Number : 6422R40007 Firmware Version : 6.23 Elevation Cutoff Setting : 0 deg Date Installed : 2025-07-07T12:00Z Date Removed : 2026-01-05T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+SBAS Serial Number : 6422R40007 Firmware Version : 6.23 Elevation Cutoff Setting : 10 deg Date Installed : 2026-01-05T00:00Z Date Removed : 2026-03-05T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+SBAS Serial Number : 6422R40007 Firmware Version : 6.23 Elevation Cutoff Setting : 0 deg Date Installed : 2026-03-05T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : (deg C) +/- (deg C) 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 NONE Serial Number : 16365021 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 2.0809 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : TRIMBLE LMR-400 Antenna Cable Length : 30 m Date Installed : 2015-02-20T00:00Z 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 : 2015-02-20/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 : 1974-01-01/CCYY-MM-DD Notes : SHOM, RONIM network 7.2 Instrumentation Type : INSAR CR/C Status : PERMANENT Effective Dates : 2025-07-11/CCYY-MM-DD Notes : Oriented towards the ascending orbit 30 and : descending orbit 154 of Sentinel-1 : Installed by IGN team 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 : Observatoire Aquitain des Sciences de l'Univers Preferred Abbreviation : OASU Mailing Address : Allée Geoffroy Saint-Hilaire / CS 50023 : 33615 PESSAC CEDEX : France Primary Contact Contact Name : SONEL technical team Telephone (primary) : +33546458394 Telephone (secondary) : Fax : E-mail : sonel-tech@univ-lr.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : www.sonel.org 12. Responsible Agency (if different from 11.) Agency : Epos-France : RENAG : CNRS Preferred Abbreviation : Epos-Fr Mailing Address : rue Michel-Ange 3 : 75796 Paris Cedex 16 : France Primary Contact Contact Name : RENAG GNSS direction and data center Telephone (primary) : Telephone (secondary) : Fax : E-mail : renag-ops@groupes.renater.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : http://renag.resif.fr/fr/ 13. More Information Primary Data Center : IGN Secondary Data Center : RENAG (ftp://renag.unice.fr) URL for More Information : https://rgp.ign.fr/STATIONS/#CHTG Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y) Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y or URL) Additional Information : http://webrenag.unice.fr/ Antenna Graphics with Dimensions LEIAR20 +-----+ <-- 0.1613 / \ | | +----------------+-----------+----------------+ <-- 0.1113 TCR | | | | | | | | +-+---------------------------------------------+-+ +------------------+-----------+------------------+ <-- 0.0323 BCR | | | | +-----x-----+ <-- 0.0013 BPA +-+ <-- 0.0000 BAM=ARP <-- 0.3200 --> Abbreviations ------------- ARP: antenna reference point BAM: bottom of antenna mount BCR: bottom of chokering BPA: bottom of preamplifier TCR: top of chokering Dimensions ---------- All dimensions are in meters.