BRUX Site Information Form (site log) International GNSS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Aerts Wim Date Prepared : 2012-04-19 Report Type : UPDATE If Update: Previous Site Log : brux_20120307.log Modified/Added Sections : 5.1, 5.2, 5.3 1. Site Identification of the GNSS Monument Site Name : Brussels Four Character ID : BRUX Monument Inscription : IERS DOMES Number : 13101M010 CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : 8 m Monument Foundation : CONCRETE BLOCK Foundation Depth : 3 m Marker Description : CENTER OF HOLE IN STEEL PLATE Date Installed : 2006-07-07 Geologic Characteristic : SAND 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 : Belgium Tectonic Plate : EURASIAN Approximate Position (ITRF) X coordinate (m) : 4027881.6287 Y coordinate (m) : 306998.5366 Z coordinate (m) : 4919498.9839 Latitude (N is +) : +504753.02 Longitude (E is +) : +0042130.82 Elevation (m,ellips.) : 158.3 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : SEPT POLARX2 Satellite System : GPS Serial Number : 1436 Firmware Version : 2.6.2 Elevation Cutoff Setting : 0 deg Date Installed : 2006-07-07 Date Removed : 2008-02-14T09:00Z Temperature Stabiliz. : (deg C) +/- 0.1 Additional Information : hardware replacement of receiver : with SN 1128, same receiver, but : different serial number (now 1436) 3.2 Receiver Type : ASHTECH Z-XII3T Satellite System : GPS Serial Number : RT820015201 Firmware Version : 1L01-1D04 Elevation Cutoff Setting : 0 deg Date Installed : 2008-02-15T08:00Z Date Removed : 2010-06-28T13:55Z Temperature Stabiliz. : (deg C) +/- 0.1 Additional Information : (multiple lines) 3.3 Receiver Type : SEPT POLARX3ETR Satellite System : GPS+GLO Serial Number : 2001060 Firmware Version : 1.4.0 Elevation Cutoff Setting : 0 deg Date Installed : 2010-06-28T13:55Z Date Removed : 2012-01-31T13:00Z Temperature Stabiliz. : 18 +/- 0.2 Additional Information : (multiple lines) 3.4 Receiver Type : SEPT POLARX4TR Satellite System : GPS+GLO Serial Number : 3001376 Firmware Version : 2.3.3 Elevation Cutoff Setting : 0 deg Date Installed : 2012-01-31T14:00Z Date Removed : 2012-03-05T14:00Z Temperature Stabiliz. : 18 +/- 0.2 Additional Information : The receiver delay 1PPS in to 1PPS out was : measured to be 145 ns. 3.5 Receiver Type : SEPT POLARX4TR Satellite System : GPS+GLO Serial Number : 3001376 Firmware Version : 2.3-tst120216r34012 Elevation Cutoff Setting : 0 deg Date Installed : 2012-03-05T16:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : 18 +/- 0.2 Additional Information : The receiver delay 1PPS in to 1PPS out was : measured to be 142.8 ns. 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+CMP+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 : ASH701945E_M NONE Serial Number : CR620023301 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1266 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2006-07-07 Date Removed : 2008-03-19T08:45Z Additional Information : (multiple lines) 4.2 Antenna Type : ASH701945C_M NONE Serial Number : CR620002301 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1266 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2008-03-19T09:00Z Date Removed : 2008-06-17T09:00Z Additional Information : (multiple lines) 4.3 Antenna Type : ASH701945C_M NONE Serial Number : CR620002301 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1286 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2008-06-17T09:00Z Date Removed : 2008-09-02T13:00Z Additional Information : Testing of ECCOSORB ANW-79 around antenna in : order to obtain low reflectivity. Adaptation : antenna height by + 2 mm due to a mounting : plate which holds the ECCOSORB material under : the antenna. 4.4 Antenna Type : ASH701945C_M NONE Serial Number : CR620002301 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1266 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2008-09-02T13:00Z Date Removed : 2008-09-22T09:00Z Additional Information : Testing without plate and ECOSORB 4.5 Antenna Type : TRM55971.00 NONE Serial Number : 30765568 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.1266 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2008-09-22T09:00Z Date Removed : 2008-10-02T09:30Z Additional Information : Testing new antenna (Antartica) 4.6 Antenna Type : TRM55971.00 TZGD Serial Number : 30765568 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.1266 Marker->ARP North Ecc(m) : 0.0010 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : TZGD Radome Serial Number : Antenna Cable Type : ANDREW heliax LDF2-50A Antenna Cable Length : 60 m Date Installed : 2008-10-02T09:30Z Date Removed : 2008-10-20T06:30Z Additional Information : Testing new antenna (Antartica) 4.7 Antenna Type : ASH701945C_M NONE Serial Number : CR620002301 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1266 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2008-10-20T06:30Z Date Removed : 2011-03-07T08:30Z Additional Information : (multiple lines) 4.8 Antenna Type : JAVRINGANT_DM NONE Serial Number : 00464 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.4689 Marker->ARP North Ecc(m) : 0.0010 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 : 60 m Date Installed : 2011-03-07T12:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : To shield the antenna from reflections on the : dome below it, a 0.8x0.8 m^2 metal shield was : installed with Eccosorb ANW-77 on top. The : spacing between the ARP and the top of the : Eccosorb ANW-77 is 17.8 cm 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 : BRUS Tied Marker Usage : IGS and EPN station Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 13101M004 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 12.164 dy (m) : 47.324 dz (m) : -23.739 Accuracy (mm) : 3 Survey method : TRIANGULATION Date Measured : 2012-03-23 Additional Information : accuracy = 1 sigma 5.2 Tied Marker Name : BRUS Tied Marker Usage : IGS and EPN station Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 13101M004 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 12.161 dy (m) : 47.330 dz (m) : -23.744 Accuracy (mm) : 1 Survey method : GPS CAMPAIGN Date Measured : 2011-07-07 Additional Information : L1 analysis covering period : 2011-05-16 to 2011-07-22. : An L3 analysis over the same period : provides (12.161;47.329;-23.745). : GPS data analysis was done using igs08.atx : calibrations for BRUS and indiv.calib. : for BRUX (from University of Bonn and TU : Darmstadt). 5.3 Tied Marker Name : BRUS Tied Marker Usage : IGS and EPN station Tied Marker CDP Number : (A4) Tied Marker DOMES Number : 13101M004 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 12.162 dy (m) : 47.331 dz (m) : -23.745 Accuracy (mm) : 1 Survey method : GPS CAMPAIGN Date Measured : 2011-11-02 Additional Information : L1 analysis covering period : 2011-007-23 to 2012-02-12. : An L3 analysis over the same period : provides (12.166;47.334;-23.748). : Differences between 5.2 and 5.3 are caused : by an unexplained coordinate jump at BRUS : at 2011-07-22. : GPS data analysis was done using igs08.atx : calibrations for BRUS and indiv.calib. : for BRUX (from University of Bonn and TU : Darmstadt). 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 : EXTERNAL H-MASER Input Frequency : 10 MHz Effective Dates : 2006-07-07/2010-12-21 Notes : (multiple lines) 6.2 Standard Type : INTERNAL Input Frequency : (if external) Effective Dates : 2010-12-22/2011-03-23 Notes : (multiple lines) 6.3 Standard Type : EXTERNAL CESIUM Input Frequency : 10 MHz Effective Dates : 2011-03-23/2011-12-19 Notes : At 12h UTC, 13h local time, on 2011-03-23 the : receiver was stopped, recabeled with an external : reference (namely UTC(ROB), derived from a : HP5071A), and restarted. 6.4 Standard Type : EXTERNAL CH1-75A MASER Input Frequency : 10 MHz Effective Dates : 2011-12-19/2012-02-27 Notes : The 5MHz output of the CH1-75A (maser3) passes a : Minicircuits FD-2+ frequency doubler and then is : used as input to a SpectraTime femtoStepper. The : output of this phase stepper (equal to UTC(ORB)) : is used as an input to the receiver. 6.5 Standard Type : EXTERNAL CESIUM Input Frequency : 10 MHz Effective Dates : 2012-02-27/2012-03-01 Notes : The 10MHz output of the Symmetricom 5071A (ces1) : is used as input to a SpectraTime femtoStepper. : The output of this phase stepper (equal to : UTC(ORB)) is used as an input to the receiver. 6.6 Standard Type : EXTERNAL CH1-75A MASER Input Frequency : 10 MHz Effective Dates : 2012-03-01/CCYY-MM-DD Notes : The 5MHz output of the CH1-75A (maser3) passes a : Minicircuits FD-2+ frequency doubler and then is : used as input to a SpectraTime femtoStepper. The : output of this phase stepper (equal to UTC(ORB)) : is used as an input to the receiver. 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 : Cryogenic gravimeter Status : PERMANENT Effective Dates : 1993-10-20/2000-08-21 Notes : (multiple lines) 7.2 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/BUILDLINGS/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 No 3 : B-1180 Brussels Primary Contact Contact Name : Carine Bruyninx Telephone (primary) : 32-2-373-02-92 Telephone (secondary) : 32-2-373-02-11 Fax : 32-2-374-98-22 E-mail : c.bruyninx@oma.be Secondary Contact Contact Name : Ann Moyaert Telephone (primary) : 32-2-373-02-01 Telephone (secondary) : 32-2-373-02-11 Fax : 32-2-374-98-22 E-mail : a.moyaert@oma.be 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 : BKGI 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 ASH701945E_M +-------+ / + \ <-- 0.1280 L2 | + | <-- 0.1100 L1 +-----------------+-------------+------------------+ <-- 0.1006 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0376 +-------------------+-------------+--------------------+ <-- 0.0346 BCR | | | | +------x------+ <-- 0.0 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier All dimensions are in meters.