HKTK Site Information Form (site log)
     International GNSS Service
     See Instructions at: ftp://igs.org/pub/station/general/sitelog_instr.txt

0.   Form

     Prepared by (full name)  : Lands Department, Hong Kong
     Date Prepared            : 2024-01-08
     Report Type              : UPDATED
     If Update:
      Previous Site Log       : hktk_20231114.log
      Modified/Added Sections : 13


1.   Site Identification of the GNSS Monument

     Site Name                : Sha Tau Kok
     Four Character ID        : HKTK
     Monument Inscription     : 
     IERS DOMES Number        : 23018M001
     CDP Number               : n/a
     Monument Description     : SCIGN MOUNT ON BUILDING ROOF
       Height of the Monument : (m)
       Monument Foundation    : CONCRETE BLOCK
       Foundation Depth       : (m)
     Marker Description       : SCIGN MOUNT
     Date Installed           : 2014-04-16T00:00Z
     Geologic Characteristic  : 
       Bedrock Type           : 
       Bedrock Condition      : 
       Fracture Spacing       : 
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : 


2.   Site Location Information

     City or Town             : Sha Tau Kok
     State or Province        : Hong Kong
     Country                  : China
     Tectonic Plate           : Eurasian
     Approximate Position (ITRF)
       X coordinate (m)       : -2418092.370
       Y coordinate (m)       : 5374658.338
       Z coordinate (m)       : 2430429.186
       Latitude (N is +)      : +223247.64804
       Longitude (E is +)     : +1141323.80140
       Elevation (m,ellips.)  : 22.5
     Additional Information   : Coordinate refer to ITRF96(1998:121)


3.   GNSS Receiver Information

3.1  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 4.81
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2014-04-16T00:00Z
     Date Removed             : 2014-11-12T09:59Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.2  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 4.85
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2014-11-12T10:00Z
     Date Removed             : 2015-01-05T08:59Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.3  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 4.93
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-01-05T09:00Z
     Date Removed             : 2015-05-29T00:59Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.4  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 5.01
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-05-29T01:00Z
     Date Removed             : 2015-08-03T06:59Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.5  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 5.03
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-08-03T07:00Z
     Date Removed             : 2015-11-02T03:19Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.6  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.10
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-11-02T03:20Z
     Date Removed             : 2016-06-08T08:09Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.7  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 5.10
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-06-08T08:10Z
     Date Removed             : 2016-07-06T09:14Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.8  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 5.14
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-07-06T09:15Z
     Date Removed             : 2016-12-14T01:20Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.9  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+BDS
     Serial Number            : 5337K45547
     Firmware Version         : 5.15
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-12-14T01:40Z
     Date Removed             : 2017-04-20T07:55Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.10 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.22
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-04-20T08:05Z
     Date Removed             : 2017-08-29T00:51Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.11 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.30
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-08-29T01:04Z
     Date Removed             : 2018-05-15T02:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.12 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.33
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-05-15T02:08Z
     Date Removed             : 2019-03-05T03:04Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.13 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.37
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-03-05T03:08Z
     Date Removed             : 2019-04-18T01:03Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.14 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.41
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-04-18T01:07Z
     Date Removed             : 2019-10-31T23:51Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.15 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 5337K45547
     Firmware Version         : 5.43
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-10-31T23:56Z
     Date Removed             : 2020-10-21T07:13Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)	 

3.16 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 1870527
     Firmware Version         : 4.31.101/7.403
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-10-21T07:18Z
     Date Removed             : 2021-12-14T06:40Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)	 

3.17 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1870185
     Firmware Version         : 4.51.489/7.710
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-12-14T06:40Z
     Date Removed             : 2022-06-20T06:42Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)	 

3.18 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1870185
     Firmware Version         : 4.52.518/7.711
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-06-20T06:46Z
     Date Removed             : 2023-05-08T07:45Z)
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)	

3.19 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+QZSS
     Serial Number            : 1870185
     Firmware Version         : 4.61.290/7.811
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-05-08T07:46Z
     Date Removed             : 2023-11-14T08:11Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)	

3.20 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+QZSS
     Serial Number            : 1870185
     Firmware Version         : 4.70.040/7.813
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-11-14T08:20Z
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

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     SCIS
     Serial Number            : 5338354860
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 0.0083
     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     : 1580
     Antenna Cable Type       : 
     Antenna Cable Length     : 
     Date Installed           : 2014-04-16T00:00Z
     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.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        : 2014-04-16/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     : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc)
       Status                 : (PERMANENT/MOBILE)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

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   : PAROSCIENTIFIC MET4A 
       Manufacturer           : Paroscientific
       Serial Number          : DQ129250
       Data Sampling Interval : 60 sec
       Accuracy (% rel h)     : 2.00% rel h
       Aspiration             : FAN
       Height Diff to Ant     : 1 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2014-04-16/2016-03-31
       Notes                  : Malfunction

8.1.2 Humidity Sensor Model   : PAROSCIENTIFIC MET4A 
       Manufacturer           : Paroscientific
       Serial Number          : DQ129239
       Data Sampling Interval : 60 sec
       Accuracy (% rel h)     : 2.00% rel h
       Aspiration             : FAN
       Height Diff to Ant     : 1 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2016-10-03/2020-10-21)
       Notes                  : Disconnected

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   : PAROSCIENTIFIC MET4A 
       Manufacturer           : Paroscientific
       Serial Number          : DQ129250
       Data Sampling Interval : 60 sec
       Accuracy               : 0.08 hPa
       Height Diff to Ant     : 1 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2014-04-16/2016-03-31
       Notes                  : Malfunction

8.2.2 Pressure Sensor Model   : PAROSCIENTIFIC MET4A 
       Manufacturer           : Paroscientific
       Serial Number          : DQ129239
       Data Sampling Interval : 60 sec
       Accuracy               : 0.08 hPa
       Height Diff to Ant     : 1 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2016-10-03/2020-10-21)
       Notes                  : Disconnected

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      : PAROSCIENTIFIC MET4A 
       Manufacturer           : Paroscientific
       Serial Number          : DQ129250
       Data Sampling Interval : 60 sec
       Accuracy               : 0.1 deg C
       Aspiration             : FAN
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2014-04-16/2016-03-31
       Notes                  : Malfunction

8.3.2 Temp. Sensor Model      : PAROSCIENTIFIC MET4A 
       Manufacturer           : Paroscientific
       Serial Number          : DQ129239
       Data Sampling Interval : 60 sec
       Accuracy               : 0.1 deg C
       Aspiration             : FAN
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2016-10-03/2020-10-21)
       Notes                  : Disconnected

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)

8.4.1 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)

8.4.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)

8.5.1 Other Instrumentation   : (multiple lines)

8.5.x Other Instrumentation   : (multiple lines)


9.  Local Ongoing Conditions Possibly Affecting Computed Position

9.1.1 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)

9.1.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)

9.2.1 Multipath Sources       : (METAL ROOF/DOME/VLBI ANTENNA/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     : (TREES/BUILDINGS/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

10.1 Date                     : (CCYY-MM-DD/CCYY-MM-DD)
     Event                    : (TREE CLEARING/CONSTRUCTION/etc)

10.x Date                     : (CCYY-MM-DD/CCYY-MM-DD)
     Event                    : (TREE CLEARING/CONSTRUCTION/etc)

11.   On-Site, Point of Contact Agency Information

     Agency                   : Lands Department, HKSAR
     Preferred Abbreviation   : SMO
     Mailing Address          : 22/F, Tsuen Wan Government Offices,
     Mailing Address          : 38 Sai Lau Kok Road, Tsuen Wan, Hong Kong
     Primary Contact
       Contact Name           : Senior Land Surveyor/Geodetic
       Telephone (primary)    : +852 31682633
       Telephone (secondary)  : 
       Fax                    : +852 31682668
       E-mail                 : slsg@landsd.gov.hk
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : (multiple lines)


12.  Responsible Agency (if different from 11.)
     Agency                   : 
     Preferred Abbreviation   : 
     Mailing Address          :  
     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      : Geoscience Australia
     Secondary Data Center    : N/A
     URL for More Information : 
     Hardcopy on File
       Site Map               : www.geodetic.gov.hk/SatRef
       Site Diagram           : 
       Horizon Mask           : 
       Monument Description   : 
       Site Pictures          : www.geodetic.gov.hk/common/StationPhoto/HKTK/StnPhoto_en.htm
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

     (insert text graphic from file antenna.gra)



TRM59800.00

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                     /           \
                    |             |
  +-------------------------------------------------+     <--  0.1020  TCR
  |                                                 |
  |                                                 |
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+-+-------------------------------------------------+-+   <--  0.0381
+-------------------+-------------+-------------------+   <--  0.0350  BCR
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                    +------x------+                       <--  0.0000  BPA=ARP
                                                                       RXC=NRP
<--                      0.3810                     -->