GVDG00GRC Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt 0. Form Prepared by (full name) : REGINA Team Date Prepared : 2024-12-11 Report Type : UPDATE If Update: Previous Site Log : gvdg00grc_20241107.log Modified/Added Sections : 4.1 1. Site Identification of the GNSS Monument Site Name : Gavdos Nine Character ID : GVDG00GRC Monument Inscription : None IERS DOMES Number : 12618M003 CDP Number : none Monument Description : concrete pillar and 50 cm steel antenna mount Height of the Monument : 1.6 m Monument Foundation : CONCRETE BLOCK Foundation Depth : Marker Description : brass hemispheric mark Date Installed : 2023-09-21T00:00Z Geologic Characteristic : unknown Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : unknown Distance/activity : unknown Additional Information : Station part of Regina (Receiver Gnss Network : for IGS and Navigation), CNES and IGN France : project. 2. Site Location Information City or Town : Gavdos Island State or Province : Chania Country or Region : GRC Tectonic Plate : AEGEAN SEA Approximate Position (ITRF) X coordinate (m) : 4783638.0020 Y coordinate (m) : 2140729.6760 Z coordinate (m) : 3623234.3660 Latitude (N is +) : +345018.10 Longitude (E is +) : +0240632.51 Elevation (m,ellips.) : 124.2 Additional Information : POSITION ITRF2020 EPOQUE 2023.730 : (24/09/2023) 3. GNSS Receiver Information 3.1 Receiver Type : SEPT POLARX5 Satellite System : GPS+GLO+GAL+BDS+IRNSS+SBAS Serial Number : 3069262 Firmware Version : 5.5.0 Elevation Cutoff Setting : 0 deg Date Installed : 2023-09-21T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : 21 +/- 3 C 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 : TRM159900.00 NONE Serial Number : 5925338591 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.5191 Marker->ARP North Ecc(m) : -0.0006 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : TRIMBLE Antenna Cable Length : 65 m Date Installed : 2023-09-21T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : cabling: 60 m LMR400 : + coaxial RF surge protector : + 5 m LMR400 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 : DORIS antenna ref. pt.(GAVC) Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 12618S002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -1.772 dy (m) : -38.145 dz (m) : 25.775 Accuracy (mm) : 1 Survey method : TRIANGULATION Date Measured : 2023-09-25T12:00Z Additional Information : high geodetic surveying proceed by IGN-F 5.2 Tied Marker Name : Mark under Doris antenna (GAVC) Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 12618M004 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -2.392 dy (m) : -38.423 dz (m) : 25.302 Accuracy (mm) : 1 Survey method : TRIANGULATION Date Measured : 2023-09-25T12:00Z Additional Information : high geodetic surveying proceed by IGN-F 5.3 Tied Marker Name : Mark under former Doris antenna (GAVB) Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 12618M002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -1.780 dy (m) : -31.996 dz (m) : 20.448 Accuracy (mm) : 1 Survey method : TRIANGULATION Date Measured : 2023-09-25T12:00Z Additional Information : high geodetic surveying proceed by IGN-F 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 : 2023-09-28/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 : TIDE GAUGE Status : PERMANENT Effective Dates : 2010-10-01/2016-09-01 Notes : Precise levelling to GVDG00GRC proceed by IGN-F 7.2 Instrumentation Type : DORIS Status : PERMANENT Effective Dates : 2023-09-25/CCYY-MM-DD Notes : 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) 9.3.1 Signal Obstructions : DOCKING / MARITIME TRAFFIC Effective Dates : 2013-11-21/CCYY-MM-DD Additional Information : 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 : Technical University of Crete Preferred Abbreviation : TUC Mailing Address : Chania : 731 00 Crete - GREECE : Greece Primary Contact Contact Name : REGINA Team Telephone (primary) : Telephone (secondary) : Fax : E-mail : regina.operation@cnes.fr 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 : Avenue Edouard Belin 18 : 31401 Toulouse cedex9 : France Primary Contact Contact Name : REGINA operation Telephone (primary) : Telephone (secondary) : Fax : E-mail : regina.operation@cnes.fr Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : GVDG00GRC is operated jointly by CNES and IGN : Website : https://regina.cnes.fr 13. More Information Primary Data Center : IGN Secondary Data Center : BKG URL for More Information : http://rgp.ign.fr/ Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : http://www.sonel.org/ Antenna Graphics with Dimensions ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP RXC=NRP <-- 0.3810 -->