ASCG00SHN Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : REGINA Team Date Prepared : 2023-08-23 Report Type : UPDATE If Update: Previous Site Log : ascg_20230314.log Modified/Added Sections : 3.13, 3.14 1. Site Identification of the GNSS Monument Site Name : Ascension Four Character ID : ASCG Monument Inscription : None IERS DOMES Number : 30602M004 CDP Number : Monument Description : concrete pillar and 40 cm steel antenna mount Height of the Monument : 2.0 m Monument Foundation : concrete block Foundation Depth : 1.4 m Marker Description : brass hemispheric mark Date Installed : 2015-07-24T00:00Z Geologic Characteristic : Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : GNSS station located at ARIANE Tracking Station : site managed by European Space Agency 2. Site Location Information City or Town : Ascension Island State or Province : British Overseas Territory Country : Saint Helena, Ascension and Tristan da Cunha Tectonic Plate : SOUTH AMERICAN Approximate Position (ITRF) X coordinate (m) : 6121151.578 Y coordinate (m) : -1563978.904 Z coordinate (m) : -872615.417 Latitude (N is +) : -075458.61 Longitude (E is +) : -0141957.59 Elevation (m,ellips.) : 38 Additional Information : coordinates IGS2020 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.01 Elevation Cutoff Setting : 3 deg Date Installed : 2015-07-24T00:00Z Date Removed : 2015-10-16T15:05Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.2 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.01 Elevation Cutoff Setting : 0 deg Date Installed : 2015-10-16T15:10Z Date Removed : 2016-08-05T13:46Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.3 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.14 Elevation Cutoff Setting : 0 deg Date Installed : 2016-08-05T13:55Z Date Removed : 2016-12-13T15:14Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.4 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.15 Elevation Cutoff Setting : 0 deg Date Installed : 2016-12-13T16:20Z Date Removed : 2017-07-11T12:32Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.5 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.22 Elevation Cutoff Setting : 0 deg Date Installed : 2017-07-11T12:40Z Date Removed : 2018-01-31T13:02Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.30 Elevation Cutoff Setting : 0 deg Date Installed : 2018-01-31T13:16Z Date Removed : 2018-08-02T08:34Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.7 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.33 Elevation Cutoff Setting : 0 deg Date Installed : 2018-08-02T08:42Z Date Removed : 2019-01-31T08:06Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.8 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.37 Elevation Cutoff Setting : 0 deg Date Installed : 2019-01-31T08:15Z Date Removed : 2019-10-24T08:49Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.9 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.42 Elevation Cutoff Setting : 0 deg Date Installed : 2019-10-24T08:58Z Date Removed : 2020-02-18T15:16Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.10 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.43 Elevation Cutoff Setting : 0 deg Date Installed : 2020-02-18T15:25Z Date Removed : 2020-05-27T07:31Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.11 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5340K46069 Firmware Version : 5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2020-05-27T07:45Z Date Removed : 2021-03-23T10:20Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.12 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5945R40128 Firmware Version : 5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2021-03-23T10:25Z Date Removed : 2023-03-14T11:22Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.13 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5945R40128 Firmware Version : 6.16 Elevation Cutoff Setting : 0 deg Date Installed : 2023-03-14T11:36Z Date Removed : 2023-08-23T10:06Z Temperature Stabiliz. : 25 +/- 5 C Additional Information : 3.14 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 5945R40128 Firmware Version : 6.20 Elevation Cutoff Setting : 0 deg Date Installed : 2023-08-23T10:15Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : 25 +/- 5 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 : TRM59800.00 NONE Serial Number : 5406354931 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.4080 Marker->ARP North Ecc(m) : -0.0007 Marker->ARP East Ecc(m) : 0.0001 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 : 2015-07-24T00:00Z Date Removed : 2021-08-19T16:15Z Additional Information : multiple lines) 4.2 Antenna Type : TRM59800.00 NONE Serial Number : 5311354626 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.4080 Marker->ARP North Ecc(m) : -0.0007 Marker->ARP East Ecc(m) : 0.0001 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 : 2021-08-19T16:15Z 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 5.1 Tied Marker Name : DORIS antenna ref. pt.(ASEB) Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 30602S005 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 2.484 dy (m) : 2.130 dz (m) : 9.448 Accuracy (mm) : 1 Survey method : TRIANGULATION Date Measured : 2015-07-23T00:00Z Additional Information : high geodetic surveying proceed by IGN-F 5.2 Tied Marker Name : Mark under DORIS antenna(ASEB) Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 30602M003 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 1.438 dy (m) : 2.398 dz (m) : 9.598 Accuracy (mm) : 1 Survey method : TRIANGULATION Date Measured : 2015-07-23T00:00Z Additional Information : high geodetic surveying proceed by IGN-F 5.3 Tied Marker Name : Mark under former Doris antenna (ASDB) Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 30602M002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 9.429 dy (m) : 35.764 dz (m) : 2.550 Accuracy (mm) : 1 Survey method : TRIANGULATION Date Measured : 2015-07-23T00:00Z Additional Information : high geodetic surveying proceed by IGN-F 5.4 Tied Marker Name : Tide gauge English Bay: POL18 mark Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : -1122.246 dy (m) : -5758.161 dz (m) : 2565.026 Accuracy (mm) : 3 Survey method : TRIANGULATION Date Measured : 2015-07-23T00:00Z Additional Information : 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 : 2015-07-24/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 : 1993-01-01/CCYY-MM-DD Notes : GLOSS ID: 263 : located at English Bay, : 6 km far away from ASCG : Agency: National Oceanography Centre 7.2 Instrumentation Type : DORIS Status : PERMANENT Effective Dates : 1997-02-28/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.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 : European Space Agency Preferred Abbreviation : ESA Mailing Address : ESA Telemetry Tracking Station : Ascension Island : British Overseas Territory : United Kingdom 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 : CNES : 18, avenue Edouard Belin : 31401 Toulouse cedex 09 - France 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 : Website : https://regina.cnes.fr 13. More Information Primary Data Center : IGN Secondary Data Center : BKG URL for More Information : Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : : (multiple lines) Antenna Graphics with Dimensions TRM59800.00 ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3810 --> Abbreviations ------------- ARP: antenna reference point BCR: bottom of chokering BPA: bottom of preamplifier TCR: top of chokering Dimensions ---------- All dimensions are in meters.