GDMA Site Information Form NGS Continuously Operating Reference Station See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Francine Coloma Date Prepared : 2023-09-29 Report Type : UPDATE If Update: Previous Site Log : gdma_20230203.log Modified/Added Sections : 3.17, 3.18 1. Site Identification of the GNSS Monument Site Name : Grand Marais Four Character ID : GDMA Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : (m) Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc) Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2002-05-16T00:00Z Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) 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 : (multiple lines) 2. Site Location Information City or Town : Grand Marais State or Province : Minnesota Country : United States Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -25589.991 Y coordinate (m) : -4296483.088 Z coordinate (m) : 4698239.767 Latitude (N is +) : +474454.79 Longitude (E is +) : -0902028.51 Elevation (m,ellips.) : 157.4 Additional Information : ARP IGS08 POSITION (EPOCH 2005.00) : Computed in Aug 2011 using data through gpswk : 1631. 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : 044013891 Firmware Version : 1.04 Elevation Cutoff Setting : (deg) Date Installed : 2002-05-16 Date Removed : 2005-09-29T11:45Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver removed. 3.2 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : 0220263647 Firmware Version : 2.24 Elevation Cutoff Setting : (deg) Date Installed : 2005-09-29T12:00Z Date Removed : 2006-02-16 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver installed and upgraded : firmware replaced. : Corrected SN no change equip GS 3.3 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : 0220263647 Firmware Version : 2.26 Elevation Cutoff Setting : (deg) Date Installed : 2006-02-16 Date Removed : 2009-10-12 Temperature Stabiliz. : (none or tolerance in degress C) Additional Information : Firmware upgraded. : Corrected SN no change equip GS 3.4 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 3.84 Elevation Cutoff Setting : 5 Date Installed : 2009-10-12T00:00Z Date Removed : 2010-03-12T17:15Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 4.03 Elevation Cutoff Setting : 5 Date Installed : 2010-03-12T17:15Z Date Removed : 2010-06-25T17:08Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 4.15 Elevation Cutoff Setting : 0 Date Installed : 2010-06-25T17:08Z Date Removed : 2010-10-06T15:25Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 4.17 Elevation Cutoff Setting : 0 Date Installed : 2010-10-06T15:25Z Date Removed : 2011-01-10T17:25Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.8 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 4.19 Elevation Cutoff Setting : 0 Date Installed : 2011-01-10T17:25Z Date Removed : 2013-02-26T19:03Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.9 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 4.70 Elevation Cutoff Setting : 0 Date Installed : 2013-02-26T19:03Z Date Removed : 2014-10-22T13:13Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.10 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4733K06636 Firmware Version : 4.85 Elevation Cutoff Setting : 0 Date Installed : 2014-10-22T13:13Z Date Removed : 2017-02-02T12:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 02-FEB-2017 Receiver removed for inventory : 20-SEP-2017 new receiver installed, with : Sierra Airlink LS300 cellular modem 3.11 Receiver Type : SEPT POLARX4 Satellite System : GPS+GLO+GAL+BDS Serial Number : 3002134 Firmware Version : 2.9.6 Elevation Cutoff Setting : 0 deg Date Installed : 2017-09-14T15:00Z Date Removed : 2021-03-09T20:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver change 3.12 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : NP 6.05/SP 5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2021-03-09T20:10Z Date Removed : 2021-10-06T01:16Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.13 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : 6.12/5.52 Elevation Cutoff Setting : 0 deg Date Installed : 2021-10-06T01:20Z Date Removed : 2021-12-19T15:10Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Downgrading Firmware to 5.45 3.14 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : 6.05/5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2021-12-19T15:25Z Date Removed : 2022-08-05T14:45Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.15 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : 6.05/5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2022-08-05T14:48Z Date Removed : 2022-10-07T19:15Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Updated receiver option to have HTTPS+Cert : Firmware update 3.16 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : 6.14/5.54 Elevation Cutoff Setting : 0 deg Date Installed : 2022-10-07T19:32Z Date Removed : 2023-02-03T00:57Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.17 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : 6.16/5.56 Elevation Cutoff Setting : 0 deg Date Installed : 2023-02-03T00:58Z Date Removed : 2023-09-29T17:20Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.18 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6024R40039 Firmware Version : 6.20/5.60 Elevation Cutoff Setting : 0 deg Date Installed : 2023-09-29T17:29Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+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 : TRM41249.00 NONE Serial Number : 11889196 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 : 110 deg Antenna Radome Type : NONE Radome Serial Number : (A4 from rcvr_ant.tab; see instructions) Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2002-05-16 Date Removed : 2005-10-21T21:43Z Additional Information : Conv marker arp N,E to 0.0000 4.2 Antenna Type : TRM41249.00 TZGD Serial Number : 11889196 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 : 110 deg Antenna Radome Type : TZGD Radome Serial Number : (A4 from rcvr_ant.tab; see instructions) Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2005-10-21T21:43Z Date Removed : 2005-11-26T18:30Z Additional Information : Radome is Regal Plastics Part No. 46291. : Conv. marker arp N,E to 0.0000 4.3 Antenna Type : TRM41249.00 NONE Serial Number : 11889196 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 : 110 deg Antenna Radome Type : NONE Radome Serial Number : (A4 from rcvr_ant.tab; see instructions) Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2005-11-26T18:30Z Date Removed : 2018-07-27T19:05Z Additional Information : Radome removed. : Conv. marker arp N,E to 0.0000 : 27-JUL-2018, antenna rotated to True : North orientation, as CO-OPS leveling : crew was unable to reach antenna ARP : due to antenna cable being in the way. : Fran delete 2 hours of data when : rotation occurred, and recreated daily : file. 4.4 Antenna Type : TRM41249.00 NONE Serial Number : 11889196 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 : (A4 from rcvr_ant.tab; see instructions) Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2018-07-27T19:05Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : 2021-03-09 Added grounding wire 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 : 2002-05-16/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.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 Interference : (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 : NOAA-National Geodetic Survey Preferred Abbreviation : NOAA-NGS Mailing Address : NOAA, N/NGS6, SSMC3-9111 : 1315 East-West Hwy. : Silver Spring, MD 20910, USA Primary Contact Contact Name : Don Haw Telephone (primary) : 240-533-9676 Telephone (secondary) : 240-533-9681 (Lijuan Sun) Fax : 301-713-4324 E-mail : ngs.corscollector@noaa.gov Secondary Contact Contact Name : Francine Coloma Telephone (primary) : 303-497-3692 Telephone (secondary) : Fax : 303-497-6513 E-mail : ngs.corscollector@noaa.gov 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 : https://geodesy.noaa.gov/corsdata/ Secondary Data Center : URL for More Information : https://geodesy.noaa.gov/CORS 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 https://files.igs.org/pub/station/general/antenna.gra