International GPS Service INVK Site Information Form See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Mike Craymer Date Prepared : 2007-11-30 Report Type : UPDATE If Update: Previous Site Log : invk_20070307.log Modified/Added Sections : 10.2 1. Site Identification of the GNSS Monument Site Name : Inuvik Four Character ID : INVK Monument Inscription : M009004 IERS DOMES Number : 40150M001 CDP Number : N/A Monument Description : Pillar Height of the Monument : 2.0 m Monument Foundation : Concrete block Foundation Depth : 1.5 m Marker Description : Steel bolt Date Installed : 2000-08-05 Geologic Characteristic : Bedrock Bedrock Type : Limestone Bedrock Condition : Weathered Fracture Spacing : Unknown Fault zones nearby : No Distance/activity : Additional Information : GPS station at Geological Survey of Canada seismic station. The GPS reference mark consists of a brass plate with a forced centering stainless steel bolt embedded on top of a 2 m high, 40 cm diameter concrete pier, anchored to exposed bedrock to a depth of 1.5 m by four steel reinforcing rods. 2. Site Location Information City or Town : Inuvik State or Province : Northwest Territories Country : Canada Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -1628432.02 Y coordinate (m) : -1714393.06 Z coordinate (m) : 5903844.73 Latitude (N is +) : +681822.32 Longitude (E is +) : -1333137.20 Elevation (m,ellips.) : 46.36 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 10120 Firmware Version : CD00-1D02 Elevation Cutoff Setting : 0 deg Date Installed : 2001-07-22 Date Removed : 2002-07-31T22:00Z Temperature Stabiliz. : None Additional Information : 3.2 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR520021003 Firmware Version : CJ00 Elevation Cutoff Setting : 0 deg Date Installed : 2002-07-31T22:14Z Date Removed : 2004-03-25T01:49Z Temperature Stabiliz. : None Additional Information : 3.3 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR520021003 Firmware Version : CJ50 Elevation Cutoff Setting : 0 deg Date Installed : 2004-03-25T01:49Z Date Removed : 2005-05-13T00:00Z Temperature Stabiliz. : None Additional Information : 3.4 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR520021003 Firmware Version : CK00 Elevation Cutoff Setting : 0 deg Date Installed : 2005-05-13T16:27Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : None Additional Information : 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+SBAS) 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 : ASH701945C_M Serial Number : CR620010805 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1000 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 : N/A Antenna Cable Length : 50 m Date Installed : 2001-07-22 Date Removed : 2003-08-21T15:30Z Additional Information : 4.2 Antenna Type : ASH701945C_M Serial Number : CR620010805 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : SCIS Radome Serial Number : 0026 Antenna Cable Type : N/A Antenna Cable Length : 50 m Date Installed : 2003-08-21T15:30Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : 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) : dy (m) : dz (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 : Effective Dates : 2001-07-22/CCYY-MM-DD Notes : 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.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 : (hPa) 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 : 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degredations : (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 10.1 Date : 2007-03-07T21:45Z Event : Removed 25 cm of snow from top of antenna dome 10.2 Date : 2007-11-30T20:00Z Event : Removed thin layer of ice from antenna dome 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : Natural Resources Canada Preferred Abbreviation : NRCan/GSD Mailing Address : 615 Booth Street Primary Contact Contact Name : Mike Craymer Telephone (primary) : (613) 947-1829 Telephone (secondary) : Fax : (613) 992-6628 E-mail : craymer@nrcan.gc.ca Secondary Contact Contact Name : Mike Piraszewski Telephone (primary) : (613) 947-0967 Telephone (secondary) : Fax : (613) 992-6628 E-mail : mpirasze@nrcan.gc.ca 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 : CDDIS Secondary Data Center : NRCan/GSD URL for More Information : Hardcopy on File Site Map : Y Site Diagram : Y Horizon Mask : Y Monument Description : Y Site Pictures : Y Additional Information : (multiple lines) Antenna Graphics with Dimensions Ashtech: ASH701945C_M ----- / + \ <-- 0.228 L2 | + | <-- 0.210 L1 +--------------------------------------------------+ <-- 0.202 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.138 +-------------------+-------------+--------------------+ <-- 0.135 BCR <-- | 0.381 | --> | +-+ | +=====| |=====+ <-- 0.100 ARP | | | | | | Mount => | | | | | | | +-+ | +----------------+=====| |=====+-----------------+ <-- 0.000 MRP | | | | | Concrete pillar | | | | | ARP: Antenna Reference Point MRP: Monument Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering