BRST Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Bruno Garayt Date Prepared : 2003-06-11 Report Type : UPDATE If Update: Previous Site Log : brst_20030113.log Modified/Added Sections : 3 1. Site Identification of the GNSS Monument Site Name : Brest Four Character ID : BRST Monument Inscription : None IERS DOMES Number : 10004M004 CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : 1 Monument Foundation : TERRACE Foundation Depth : (m) Marker Description : HEMISPHERIC BRASS MARKER Date Installed : 1998-10-31T00:00Z Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : 2. Site Location Information City or Town : Brest State or Province : Finistere Country : France Tectonic Plate : Eurasia Approximate Position (ITRF) X coordinate (m) : 4231121.3 Y coordinate (m) : -332725.9 Z coordinate (m) : 4745110.2 Latitude (N is +) : +482249.80 Longitude (E is +) : -0042947.76 Elevation (m,ellips.) : 00065.8 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 21043 Firmware Version : 7.15 / 3.04 Elevation Cutoff Setting : 5 Date Installed : 1998-10-31T00:00Z Date Removed : 1999-04-02T00:00Z Temperature Stabiliz. : NONE Additional Information : (multiple lines) 3.2 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 21043 Firmware Version : 7.28 / 3.07 Elevation Cutoff Setting : 5 Date Installed : 1999-04-02T00:00Z Date Removed : 1999-05-06T00:00Z Temperature Stabiliz. : NONE Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 21043 Firmware Version : 7.29 / 3.07 Elevation Cutoff Setting : 5 Date Installed : 1999-05-06T00:00Z Date Removed : 2003-06-10T12:00Z Temperature Stabiliz. : NONE Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE 4000SSI Satellite System : GPS Serial Number : 3747A21041 Firmware Version : 7.29 / 3.07 Elevation Cutoff Setting : 5 Date Installed : 2003-06-11T00:00Z 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/GLONASS/GPS+GLONASS) Serial Number : (A5) 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 : TRM29659.00 NONE Serial Number : 0220101990 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 001.0543 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Antenna Cable Length : 20 Date Installed : 1998-10-31T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : (multiple lines) 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 : 1998-10-31/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 : TIDE GAUGE Status : PERMANENT Effective Dates : 1977-02-14/CCYY-MM-DD Notes : Tide Gauge - Floating type : Status : operational. : Sea level data since 1806. 7.2 Instrumentation Type : TIDE GAUGE Status : PERMANENT Effective Dates : 1993-02-05/CCYY-MM-DD Notes : Status operational : Tide Gauge - Acoustic type : Monthly and annual mean values sent to : PSMSL. 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 : Institut Geographique National Preferred Abbreviation : IGN Mailing Address : ENSG / LAREG : 6 et 8 avenue Blaise Pascal : Cite Descartes - Champs-sur-Marne : 77455 Marne la vallee Cedex 2 FRANCE Primary Contact Contact Name : Bruno Garayt Telephone (primary) : (33) 1.43.98.84.62 Telephone (secondary) : Fax : (33) 1.43.98.84.50 E-mail : bruno.garayt@ign.fr Secondary Contact Contact Name : Philippe Nicolon Telephone (primary) : (33) 1.64.15.32.57 Telephone (secondary) : Fax : (33) 1.64.15.32.53 E-mail : nicolon@ensg.ign.fr 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 : IGNE Secondary Data Center : ULR TIGA Project DC URL for More Information : http://lareg.ensg.ign.fr/RGP/site/brst.html Hardcopy on File Site Map : http://lareg.ensg.ign.fr/RGP/site/brstphoto.html Site Diagram : (Y or URL) Horizon Mask : (Y or URL) Monument Description : http://lareg.ensg.ign.fr/RGP/ : site/brstcroquis.html Site Pictures : http://lareg.ensg.ign.fr/RGP/site/brstphoto.html Additional Information : hourly data available Antenna Graphics with Dimensions --- L2 Phase Center => / + \ <-- 0.128 L2 L1 Phase Center => | + | <-- 0.110 L1 +----------------------------------------------+ <-- 0.102 TCR | | | | | | | | ================================================== <-- 0.035 BCR | | | +-+ | +----------------+====| |====+-----------------+ <-- 0.000 ARP=BPA | aluminium | | plate | +-------| |-----------| |---------------| |----+ | | +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ------------| |------------+----------------| |------- <-- - 1.0543 roof hemisheric brass marker ARP: Antenna Reference Point BPA: Bottom of pre-amplifier L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering