ZTBS00BEL 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) : EPOS-GNSS team (epos@oma.be) Date Prepared : 2025-02-11 Report Type : NEW If Update: Previous Site Log : (ssssddsss_ccyymmdd.log) Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Brussels ZTBR 3 Constellation Scintillation Nine Character ID : ZTBS00BEL Monument Inscription : IERS DOMES Number : 13101M009 CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : 5 m Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc) Foundation Depth : (m) Marker Description : BRASS NAIL Date Installed : 2003-07-17T12:00Z Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) 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 : Brussels State or Province : Brabant Country or Region : BEL Tectonic Plate : EURASIAN Approximate Position (ITRF) X coordinate (m) : 4027865.430 Y coordinate (m) : 307011.470 Z coordinate (m) : 4919504.050 Latitude (N is +) : +504753.51 Longitude (E is +) : +0042131.55 Elevation (m,ellips.) : 152.6 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : SEPT POLARXS Satellite System : GPS+GLO+GAL Serial Number : 3003816 Firmware Version : 2.3.4 Elevation Cutoff Setting : 0 deg Date Installed : 2010-03-01T10:10Z Date Removed : 2013-07-24T08:25Z Temperature Stabiliz. : 18.0 +/- 0.2 Additional Information : (multiple lines) 3.2 Receiver Type : SEPT POLARXS Satellite System : GPS+GLO+GAL Serial Number : 3003816 Firmware Version : 2.5.2 Elevation Cutoff Setting : 0 deg Date Installed : 2013-07-24T08:40Z Date Removed : 2016-10-21T08:30Z Temperature Stabiliz. : 18.0 +/- 0.2 Additional Information : (multiple lines) 3.3 Receiver Type : SEPT POLARXS Satellite System : GPS+GLO+GAL Serial Number : 3003816 Firmware Version : 2.9.1 Elevation Cutoff Setting : 0 deg Date Installed : 2016-10-21T08:30Z Date Removed : 2017-01-03T12:30Z Temperature Stabiliz. : 18.0 +/- 0.2 Additional Information : (multiple lines) 3.4 Receiver Type : SEPT POLARXS Satellite System : GPS+GLO+GAL Serial Number : 3003816 Firmware Version : 2.9.6 Elevation Cutoff Setting : 0 deg Date Installed : 2017-01-03T12:45Z Date Removed : 2018-02-27T15:00Z Temperature Stabiliz. : 18.0 +/- 0.2 Additional Information : (multiple lines) 3.5 Receiver Type : SEPT POLARXS Satellite System : GPS+GLO+GAL Serial Number : 3003816 Firmware Version : 2.9.6 Elevation Cutoff Setting : 0 deg Date Installed : 2018-02-27T15:00Z Date Removed : 2021-07-01T10:00Z Temperature Stabiliz. : 20.1 +/- 0.2 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 : ASH701945B_M NONE Serial Number : CR519992108 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 41 m Date Installed : 2003-07-17 Date Removed : 2012-10-22T14:00Z Additional Information : The antenna was removed to disconnect the : antenna cable in order to measure its time : delay (site calibration for time transfer). : Afterwards the antenna was reinstalled. : The cable length of 41m was derived from the : time delay measurement. The LDF2-50A cable is : connected to a splitter which feeds ZTB{1,3,R,S} : with short (1m) RG-223 cables. 4.2 Antenna Type : ASH701945B_M NONE Serial Number : CR519992108 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 41 m Date Installed : 2012-10-22T15:00Z Date Removed : 2014-01-15T15:20Z Additional Information : The cable length of 41m was derived from the : time delay measurement. The LDF2-50A cable is : connected to a splitter which feeds ZTB{1,3,R,S) : with short (1m) RG-223 cables. 4.3 Antenna Type : TRM59800.00 NONE Serial Number : 5115354112 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 41 m Date Installed : 2014-01-15T15:40Z Date Removed : 2017-03-16T09:00Z Additional Information : The cable length of 41m was derived from the : time delay measurement. The LDF2-50A cable is : connected to a splitter which feeds ZTB{1,3,R,S) : with short (1m) RG-223 cables. 4.4 Antenna Type : TRM59800.00 NONE Serial Number : 5115354112 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 36.65 m Date Installed : 2017-03-16T14:00Z Date Removed : 2017-08-03T14:00Z Additional Information : Antenna cable shortened to remove a crack in : the cable 4.5 Antenna Type : SEPCHOKE_MC NONE Serial Number : 5467 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 : NONE Radome Serial Number : Antenna Cable Type : RG214 Antenna Cable Length : 30 m Date Installed : 2017-08-03T14:00Z Date Removed : 2017-08-09T15:00Z Additional Information : position change, using DOMES number 13101M012 4.6 Antenna Type : TRM59800.00 NONE Serial Number : 5115354112 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 36.65 m Date Installed : 2017-08-09T15:00Z Date Removed : 2018-02-27T15:00Z Additional Information : back on DOMES number 13101M009 4.7 Antenna Type : SEPCHOKE_B3E6 NONE Serial Number : 5074 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : HUBER+SUHNER SPUMA 400-FR-01 Antenna Cable Length : 30.95 m Date Installed : 2018-02-27T15:00Z Date Removed : 2018-03-15T14:00Z Additional Information : Move on DOMES number 13101M008 : Surge protection device, dly: L2 553, L1 525 ps. 4.8 Antenna Type : TRM59800.00 NONE Serial Number : 5115354112 Antenna Reference Point : BPA 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 : NONE Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 36.65 m Date Installed : 2018-03-15T14:00Z Date Removed : 2021-07-01T10:00Z Additional Information : back on DOMES number 13101M009 : Surge protection device, dly: L2 553, L1 525 ps. 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 : 2012-08-21/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 : SEISMOMETER Status : PERMANENT Effective Dates : 1993-10-20/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 : Royal Observatory of Belgium Preferred Abbreviation : ROB Mailing Address : Av. Circulaire 3 : 1180 Brussels : Belgium Primary Contact Contact Name : GNSSatROB Telephone (primary) : Telephone (secondary) : Fax : E-mail : gnss@oma.be Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : 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 : ROB Secondary Data Center : URL for More Information : 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 ASH701945B_M ASH701945C_M ASH701945D_M ASH701945E_M ASH701945G_M +-------+ / \ | | +-----------------+-------------+-----------------+ <-- 0.1006 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0376 +-------------------+-------------+-------------------+ <-- 0.0346 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3794 -->