THU300GRL 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) : Mr. Ole Bjerregaard Hansen Date Prepared : 2021-12-15 Report Type : UPDATE If Update: Previous Site Log : thu300grl_20191029.log Modified/Added Sections : 11 1. Site Identification of the GNSS Monument Site Name : THULE Four Character ID : THU3 Monument Inscription : IERS DOMES Number : 43001M002 CDP Number : (A4) Monument Description : Bolt in 1.5 meter concrete pillar Height of the Monument : (m) Monument Foundation : Steel rods Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2001-09-01 Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC Bedrock Condition : JOINTED Fracture Spacing : over 200 cm Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : MONUMENT+ANTENNA SHARED WITH IGLOS STATION THU2 : 2002-08-20 Format issues, antenna eccentricity, : elevation cutoff setting and datacenter : information has been corrected/added. 2. Site Location Information City or Town : Thule Airbase State or Province : Greenland Country : Greenland Tectonic Plate : NORTH AMERICAN Approximate Position (ITRF) X coordinate (m) : 538093.700 Y coordinate (m) : -1389088.000 Z coordinate (m) : 6180979.300 Latitude (N is +) : +763213.37 Longitude (E is +) : -0684930.11 Elevation (m,ellips.) : 36.2 Additional Information : 00018.9 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR20011104 Firmware Version : CJ00 Elevation Cutoff Setting : 5 deg Date Installed : 2001-09-01T00:00Z Date Removed : 2003-11-13 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.2 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : 11104 Firmware Version : CJ00 Elevation Cutoff Setting : 5 deg Date Installed : 2003-11-13 Date Removed : 2006-08-29T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.3 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : 11104 Firmware Version : CJ00 Elevation Cutoff Setting : 0 deg Date Installed : 2006-08-29T00:00Z Date Removed : 2008-02-15T14:06Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 02259 Firmware Version : 1L00 Elevation Cutoff Setting : 0 deg Date Installed : 2008-02-15T14:07Z Date Removed : 2009-04-30T19:11Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.5 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : 11104 Firmware Version : CK00 Elevation Cutoff Setting : 0 deg Date Installed : 2009-04-30T19:11Z Date Removed : 2019-05-23T23:59Z Temperature Stabiliz. : none Additional Information : THU2 continues on the same MARKER 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 : ASH701073.1 SCIS Serial Number : CRG0111 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1002 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : SCIS Radome Serial Number : Antenna Cable Type : Andrew LDF4-50A Antenna Cable Length : 70 m Date Installed : 2000-11-17 Date Removed : 2003-11-13 Additional Information : (multiple lines) 4.2 Antenna Type : ASH701073.1 SCIS Serial Number : G0111 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1002 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : SCIS Radome Serial Number : Antenna Cable Type : Andrew LDF4-50A Antenna Cable Length : 70 m Date Installed : 2003-11-13 Date Removed : 2019-05-23 Additional Information : Serial Number changed in order to conform with : SINEX 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 : THU1 Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 43001M001 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 887.691 m dy (m) : 373.240 m dz (m) : 25.840 m Accuracy (mm) : Survey method : GPS CAMPAIGN Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : ONE YEAR OF DAILY FILES 5.2 Tied Marker Name : THU2 Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 43001M002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 0.000 m dy (m) : 0.000 m dz (m) : 0.000 m Accuracy (mm) : Survey method : UNKNOWN Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5.3 Tied Marker Name : THU1 Tied Marker Usage : IGS global station Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 43001M001 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 887.699 m dy (m) : 373.219 m dz (m) : 25.937 m Accuracy (mm) : 0.5 mm Survey method : GPS CAMPAIGN Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : Differential components in section 5.1 have : been found erroneous. Two years of daily files : have been processed. 5.4 Tied Marker Name : THUB Tied Marker Usage : DORIS station Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 43001S005 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 16.946 m dy (m) : 56.670 m dz (m) : 15.283 m Accuracy (mm) : 1 mm Survey method : GPS Date Measured : 2002-09-28 Additional Information : 20 hours of GPS observations 5.5 Tied Marker Name : THUB Tied Marker Usage : DORIS station Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 43001S005 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 16.954 m dy (m) : 56.685 m dz (m) : 15.270 m Accuracy (mm) : 1 mm Survey method : GPS, directions and distances, levelling Date Measured : 2008-08-01 Additional Information : First re-measurement since monument was : damaged and rebuilt 2002-10-14 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 : 2001-09-01/2002-09-24 Notes : (multiple lines) 6.2 Standard Type : EXTERNAL RUBIDIUM Input Frequency : 5 MHz Effective Dates : 2002-09-25/CCYY-MM-DD Notes : DATUM FRK-LLN P/N: 80104736 S/N: 19087 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.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 8.1.1 Humidity Sensor Model : HMP45D Manufacturer : VAISALA Serial Number : Data Sampling Interval : 300 sec Accuracy (% rel h) : 2 % rel h Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : 5.1 m Calibration date : (CCYY-MM-DD) Effective Dates : 2001-09-01/2005-09-15 Notes : Serial U5020003 8.1.2 Humidity Sensor Model : HMP45DSP Manufacturer : VAISALA Serial Number : Data Sampling Interval : 300 sec Accuracy (% rel h) : 2 % rel h Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : 5.1 m Calibration date : 2005-08-15 Effective Dates : 2005-09-15/CCYY-MM-DD Notes : Serial A3310004 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) 8.2.1 Pressure Sensor Model : PTU200 Class A Manufacturer : VAISALA Serial Number : Data Sampling Interval : (sec) Accuracy : 0.15 hPa Height Diff to Ant : 5.1 m Calibration date : (CCYY-MM-DD) Effective Dates : 2001-09-01/CCYY-MM-DD Notes : Serial U5120003 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) 8.3.1 Temp. Sensor Model : PTU200 Manufacturer : VAISALA Serial Number : Data Sampling Interval : 300 sec Accuracy : 0.2 deg C Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : 5.1 m Calibration date : (CCYY-MM-DD) Effective Dates : 2001-09-01/2005-09-15 Notes : Serial U5120003 8.3.2 Temp. Sensor Model : HMP45DSP Manufacturer : VAISALA Serial Number : Data Sampling Interval : 300 sec Accuracy : 0.2 deg C Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : 5.1 m Calibration date : 2005-08-15 Effective Dates : 2005-09-15/CCYY-MM-DD Notes : Serial A3310004 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 : National Space Institute : Technical University of Denmark Preferred Abbreviation : DTU Space Mailing Address : Elektrovej bldg. 328 : DK-2800 Kongens Lyngby : Denmark Primary Contact Contact Name : Mr. Finn Bo Madsen Telephone (primary) : +45 45 25 97 84 Telephone (secondary) : +45 40 15 22 76 Fax : +45 45 25 95 75 E-mail : bm@space.dtu.dk Secondary Contact Contact Name : Mr. Ole Bjerregaard Hansen Telephone (primary) : +45 45 25 97 38 Telephone (secondary) : +45 45 25 97 38 Fax : +45 45 25 95 75 E-mail : obh@space.dtu.dk Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : (multiple lines) Preferred Abbreviation : (A10) Mailing Address : (multiple lines) Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : CDDIS Secondary Data Center : BKG URL for More Information : geodesy.spacecenter.dk/~geod/REFSTA/ref.html Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y) Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y) Additional Information : (multiple lines) Antenna Graphics with Dimensions ASH701073.1 ASH701073.3 +-------+ / + \ <-- 0.1280 L2 | + | <-- 0.1100 L1 +-----------------+-------------+------------------+ <-- 0.1020 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+--------------------+ <-- 0.0350 BCR | | | | +------x------+ <-- 0.0 BPA=ARP