KOS100NLD 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)  : TU Delft GNSS team (gnss-citg@tudelft.nl)
     Date Prepared            : 2023-04-17
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : kos100nld_20221206.log
      Modified/Added Sections : 11


1.   Site Identification of the GNSS Monument

     Site Name                : Kootwijk Observatory for Satellite Geodesy
     Nine Character ID        : KOS100NLD
     Monument Inscription     : None
     IERS DOMES Number        : 13504M005
     CDP Number               : (A4)
     Monument Description     : STEEL MAST
       Height of the Monument : 1.5 m
       Monument Foundation    : CONCRETE BUILDING
       Foundation Depth       : (m)
     Marker Description       : Bottom of the pin under the antenna mount
     Date Installed           : 2013-05-23
     Geologic Characteristic  : SAND
       Bedrock Type           : SEDIMENTARY
       Bedrock Condition      : (FRESH/JOINTED/WEATHERED)
       Fracture Spacing       : (0 cm/1-10 cm/11-50 cm/51-200 cm/over 200 cm)
       Fault zones nearby     : NO
         Distance/activity    : (multiple lines)
     Additional Information   : The GNSS antenna is mounted on a short mast on
                              : the roof of Radio Kootwijk (nickname
                              : 'Cathedral'), nearby, and in sight of, the
                              : former Kootwijk Observatory for Satellite
                              : Geodesy (KOSG). The building is a very sturdy
                              : concrete structure build in the 1930's to
                              : house long wave long distance radio
                              : transmitters (now removed). The building is
                              : nowadays a protected monument.
                              : The station is operating under responsibility
                              : of the AGRS.NL organisation (RWS/KAD/TUD)
                              : Dutch triangulation RD site+marker 339352-02


2.   Site Location Information

     City or Town             : Kootwijk
     State or Province        : Gelderland
     Country or Region        : NLD
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 3899613.948
       Y coordinate (m)       : 397361.592
       Z coordinate (m)       : 5014738.666
       Latitude (N is +)      : +521024.08
       Longitude (E is +)     : +0054905.61
       Elevation (m,ellips.)  : 104.8
     Additional Information   : Near Apeldoorn


3.   GNSS Receiver Information

3.1  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.3.4
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2013-06-18T12:20Z
     Date Removed             : 2013-09-09T02:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.2  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.5.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2013-09-10T09:58Z
     Date Removed             : 2015-02-18T15:32Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.3  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.7-beta1
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-02-18T15:33Z
     Date Removed             : 2015-06-18T08:43Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.4  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.9.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-06-18T08:45Z
     Date Removed             : 2017-01-18T15:04Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.5  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.9.5
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-01-18T15:04Z
     Date Removed             : 2017-01-18T19:45Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.6  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.9.6
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-01-18T19:45Z
     Date Removed             : 2018-12-17T12:45Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.7  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002129
     Firmware Version         : 2.9.6-patch2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-12-17T12:49Z
     Date Removed             : 2020-04-20T07:30Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.8  Receiver Type            : SEPT POLARX4
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 3002074
     Firmware Version         : 2.9.6-patch2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-04-20T07:30Z
     Date Removed             : 2020-09-21T12:15Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.9  Receiver Type            : SEPT POLARX5E
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 3048419
     Firmware Version         : 5.3.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-09-21T12:15Z
     Date Removed             : 2022-12-06T14:16Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.10 Receiver Type            : SEPT POLARX5E
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 3048419
     Firmware Version         : 5.5.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-12-06T14:17Z
     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+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             : LEIAR25.R3      LEIT
     Serial Number            : 10050009
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.1300
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : LEIT
     Radome Serial Number     : 10050009
     Antenna Cable Type       : CA600
     Antenna Cable Length     : 30 m
     Date Installed           : 2013-05-23T00:00Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Additional Information   : Antenna and radome have been absolutely
                              : calibrated by geo++

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         : KOSG-25
     Tied Marker Usage        : GPS (KOSG Permanent GPS)
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : 13504M003
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : -388.530 m
       dy (m)                 : -630.930 m
       dz (m)                 : 339.580 m
     Accuracy (mm)            : 5 mm
     Survey method            : GPS CAMPAIGN
     Date Measured            : 2013-06-27T00:00Z
     Additional Information   : Provisional result from GPS data, local
                              : survey with triangulation, trilateration
                              : and levelling has been conducted. Results
                              : are pending.

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        : 2013-06-27/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     : RELATIVE GRAVIMETERS
       Status                 : MOBILE
       Effective Dates        : 1973-01-01/2004-12-31
       Notes                  : (multiple lines)

7.2  Instrumentation Type     : ABSOLUTE GRAVIMETERS
       Status                 : MOBILE
       Effective Dates        : 1973-01-01/CCYY-MM-DD
       Notes                  : Micro-g FG-5 #234 (yearly)

7.3  Instrumentation Type     : SEISMOMETER
       Status                 : PERMANENT
       Effective Dates        : 1973-01-01/1995-12-31
       Notes                  : (multiple lines)

7.4  Instrumentation Type     : SLR
       Status                 : MOBILE
       Effective Dates        : 1984-01-01/1996-12-31
       Notes                  : Regular occupations by MTLRS-2

7.5  Instrumentation Type     : UNDERGROUND LEVELING BENCHMARK
       Status                 : PERMANENT
       Effective Dates        : 2013-05-23/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.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                   : Kadaster
                              : Geodetische Infrastructuur -
                              : Rijksdriehoeksmeting
     Preferred Abbreviation   : KAD
     Mailing Address          : Hofstraat 110
                              : 7311KZ Apeldoorn
                              : Netherlands (the)
     Primary Contact
       Contact Name           : GI-RD
       Telephone (primary)    : +31 6 52481939
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : rd@kadaster.nl
     Secondary Contact
       Contact Name           : TU Delft GNSS team
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : gnss-citg@tudelft.nl
     Additional Information   : Primary contact for non IGS and EPN related
                              : activities concerning this station




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      : BKG
     Secondary Data Center    : IGN
     URL for More Information : http://gnss1.tudelft.nl/dpga/
     Hardcopy on File
       Site Map               : ./dpga/station/Kootwijk.html
       Site Diagram           : X
       Horizon Mask           : X
       Monument Description   : X
       Site Pictures          : ./dpga/station/Kootwijk.html
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

LEIAR25.R3

                       +-------+                          <--  0.1995
                      /         \
                +---+-------------+---+                   <--  0.1606  TCR
                |                     |
             |---------------------------|
          |---------------------------------|
       |---------------------------------------|
    +---------------------------------------------+
    |                                             |
    |                                             |
  +-+---------------------------------------------+-+
  +-----------------+-------------+-----------------+     <--  0.0320  BCR
                    |             |
                    |             |
                    +------x------+                       <--  0.0000  BPA=ARP
                                                              (5/8' thread might
                                                               differ from BPA!)
  <--                    0.3802                   -->

ARP: antenna reference point
BCR: bottom of chokering
BPA: bottom of preamplifier
TCR: top of chokering