THU300GRL 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)  : 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
     Nine Character ID        : THU300GRL
     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 or Region        : GRL
     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                 : [email protected]
     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                 : [email protected]
     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