CBW100NLD 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 : 2026-01-16 Report Type : UPDATE If Update: Previous Site Log : cbw100nld_20240320.log Modified/Added Sections : 7.1 1. Site Identification of the GNSS Monument Site Name : Cabauw IGRS Nine Character ID : CBW100NLD Monument Inscription : Cabauw IGRS (GNSS ARP) IERS DOMES Number : 13536M001 CDP Number : (A4) Monument Description : IGRS Height of the Monument : 2.60 m Monument Foundation : CONCRETE BLOCK Foundation Depth : 1.50 m Marker Description : CENTER OF HOLE IN STEEL PLATE Date Installed : 2019-05-16T10:00Z Geologic Characteristic : RIVER CLAY DEPOSIT Bedrock Type : SEDIMENTARY Bedrock Condition : FRESH Fracture Spacing : 0 cm Fault zones nearby : NO Distance/activity : (multiple lines) Additional Information : (multiple lines) 2. Site Location Information City or Town : Cabauw State or Province : N/A Country or Region : NLD Tectonic Plate : EURASIAN Approximate Position (ITRF) X coordinate (m) : 3923113.377 Y coordinate (m) : 338135.245 Z coordinate (m) : 5000752.249 Latitude (N is +) : +515810.36 Longitude (E is +) : +0045534.25 Elevation (m,ellips.) : 45.7 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 1870649 Firmware Version : 4.31/7.403 Elevation Cutoff Setting : 0 deg Date Installed : 2019-05-16T15:00Z Date Removed : 2022-03-30T20:49Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.2 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 1870649 Firmware Version : 4.52/7.711 Elevation Cutoff Setting : 0 deg Date Installed : 2022-03-30T20:50Z Date Removed : 2024-03-20T08:09Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.3 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS Serial Number : 1870649 Firmware Version : 4.80/7.900 Elevation Cutoff Setting : 0 deg Date Installed : 2024-03-20T08:09Z 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 : LEIAR20 LEIM Serial Number : 20331002 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0250 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIM Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2019-05-16T15:00Z Date Removed : 2020-05-27T08:40Z Additional Information : On 27 May 2020 the antenna was removed and : reinstalled flush with the marker. The antenna : height changed by -2.5 cm (lower than : previously). For the RINEX data that was : published before 27 May 2020 the antenna : was incorrectly listed at 0.0000 (instead of : 0.0250). This mistake has been corrected in : the RINEX data available from the primary data : data center. 4.2 Antenna Type : LEIAR20 LEIM Serial Number : 20331002 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIM Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2020-05-27T08:50Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : On 27 May 2020 the antenna was removed and : reinstalled flush with the marker. The new : antenna height is 0.0000 m. 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 : Cabauw GPS (old) Tied Marker Usage : CABW Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 0.252 m dy (m) : 0.013 m dz (m) : 0.384 m Accuracy (mm) : 10 mm Survey method : GPS PPP Date Measured : 2019-05-18T09:00Z Additional Information : (multiple lines) 5.2 Tied Marker Name : Cabauw Tower Tied Marker Usage : CAB1 Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 13536M002 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 66.890 m dy (m) : 3.962 m dz (m) : 215.261 m Accuracy (mm) : 10 mm Survey method : GPS PPP Date Measured : 2019-05-18T09:00Z Additional Information : (multiple lines) 5.3 Tied Marker Name : Cabauw RS Tied Marker Usage : CAB2 Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 13536M003 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 96.951 m dy (m) : 222.616 m dz (m) : -90.049 m Accuracy (mm) : 10 mm Survey method : GPS PPP Date Measured : 2019-05-18T09:00Z Additional Information : (multiple lines) 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 : 2019-05-16/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 : INSAR CR/I Status : PERMANENT Effective Dates : 2019-05-16/CCYY-MM-DD Notes : Integrated Geodetic Reference Station (IGRS) : with mechanically coupled GNSS antenna, double : backflip corner reflectors for ascending and : descending (In)SAR acquisitions, and reflective : surface for Laser Altimetry. 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 : Delft University of Technology : Department of Geoscience and Remote Sensing : (GRS) Preferred Abbreviation : DUT Mailing Address : Stevinweg 1 : 2628 CN Delft : Netherlands (the) Primary Contact Contact Name : TU Delft GNSS team Telephone (primary) : +31 15 2784907 Telephone (secondary) : Fax : E-mail : gnss-citg@tudelft.nl Secondary Contact Contact Name : GI-RD Telephone (primary) : +31 6 52481939 Telephone (secondary) : Fax : E-mail : rd@kadaster.nl Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) 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 : AGRS.NL is a collaborative effort by Kadaster, : Rijkswaterstaat and Delft University of : Technology (TUD). Kadaster is the primary : contact for all national activities. TUD is the : primary contact for all IGS and EPN related : matters. 13. More Information Primary Data Center : DUT Secondary Data Center : KAD URL for More Information : http://gnss1.tudelft.nl/dpga Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y or URL) Horizon Mask : (Y or URL) Monument Description : (Y or URL) Site Pictures : (Y or URL) Additional Information : (multiple lines) Antenna Graphics with Dimensions LEIAR20 +-----+ <-- 0.1613 / \ | | +----------------+-----------+----------------+ <-- 0.1113 TCR | | | | | | | | +-+---------------------------------------------+-+ +------------------+-----------+------------------+ <-- 0.0323 BCR | | | | +----+ +----+ <-- 0.0013 BPA +x+ <-- 0.0000 BAM=ARP NOM=NRP <-- 0.3200 -->