SG27 Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Susan Jeffries Date Prepared : 2023-02-13 Report Type : UPDATE If Update: Previous Site Log : sg27_20210203.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : SG27_AKDA_AK2002 Four Character ID : SG27 Monument Inscription : IERS DOMES Number : 49508M001 CDP Number : (A4) Monument Description : DEEP FOUNDATION MAST Height of the Monument : 3.5 (m) Monument Foundation : Permafrost Foundation Depth : 5 (m) Marker Description : UNKNOWN Date Installed : 2002-05-04 Geologic Characteristic : OTHER 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 : SCIGN adaptor on pipe attached to wooden piling. 2. Site Location Information City or Town : Barrow State or Province : Alaska Country : USA Tectonic Plate : North America Approximate Position (ITRF) X coordinate (m) : -1880319.0412 Y coordinate (m) : -813284.2104 Z coordinate (m) : 6019924.0431 Latitude (N is +) : +711922.42 Longitude (E is +) : -1563637.19 Elevation (m,ellips.) : 9.4329 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 4700 Satellite System : GPS Serial Number : 0440100018 Firmware Version : 1.37 Elevation Cutoff Setting : 0 deg Date Installed : 2002-05-04T00:00Z Date Removed : 2004-06-01T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4413233100 Firmware Version : 0.7-0 Elevation Cutoff Setting : 0 deg Date Installed : 2004-06-01T00:00Z Date Removed : 2005-08-10T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4413233100 Firmware Version : 1.1-2 Elevation Cutoff Setting : 0 deg Date Installed : 2005-08-10T00:00Z Date Removed : 2006-06-09T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 1.1-2 Elevation Cutoff Setting : 0 deg Date Installed : 2006-06-09T00:00Z Date Removed : 2009-03-20T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 1.2-0 Elevation Cutoff Setting : 0 deg Date Installed : 2009-03-20T00:00Z Date Removed : 2009-05-05T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 0.3-0 Elevation Cutoff Setting : 0 deg Date Installed : 2009-05-05T00:00Z Date Removed : 2009-05-29T00:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 0.3-1 Elevation Cutoff Setting : 0 deg Date Installed : 2009-05-29T00:00Z Date Removed : 2009-11-19T23:33Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.8 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 0.3-6 Elevation Cutoff Setting : 0 deg Date Installed : 2009-11-19T23:37Z Date Removed : 2009-12-23T13:37Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.9 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 0.3-8 Elevation Cutoff Setting : 0 deg Date Installed : 2009-12-23T13:37Z Date Removed : 2010-04-27T21:53Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.10 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 1.3-0 Elevation Cutoff Setting : 0 deg Date Installed : 2010-04-27T21:53Z Date Removed : 2017-08-03T20:51Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.11 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4611206668 Firmware Version : 1.3-2 Elevation Cutoff Setting : 0 deg Date Installed : 2017-08-03T20:51Z Date Removed : 2017-08-04T23:46Z Temperature Stabiliz. : none Additional Information : Firmware upgrade. 3.12 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4450241640 Firmware Version : 1.3-2 Elevation Cutoff Setting : 0 deg Date Installed : 2017-08-04T23:46Z Date Removed : 2018-06-14T18:01Z Temperature Stabiliz. : none Additional Information : Receiver swap. 3.13 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4420233996 Firmware Version : 1.3-2 Elevation Cutoff Setting : deg Date Installed : 2018-06-14T18:01Z Date Removed : 2018-06-18T11:02Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.14 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3016411 Firmware Version : 5.2.0 Elevation Cutoff Setting : deg Date Installed : 2018-06-18T11:02Z Date Removed : 2019-10-21T23:16Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.15 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3016411 Firmware Version : 5.3.0 Elevation Cutoff Setting : deg Date Installed : 2019-10-21T23:16Z Date Removed : 2020-10-15T19:31Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.16 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3016411 Firmware Version : 5.3.2 Elevation Cutoff Setting : deg Date Installed : 2020-10-15T19:31Z Date Removed : 2021-02-01T15:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.17 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3016411 Firmware Version : 5.4.0 Elevation Cutoff Setting : deg Date Installed : 2021-02-01T15:01Z Date Removed : 2022-08-10T20:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.18 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3035023 Firmware Version : 5.4.0-patch1 Elevation Cutoff Setting : deg Date Installed : 2022-08-10T20:01Z Date Removed : 2022-08-16T23:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.19 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3069443 Firmware Version : 5.4.0-patch1 Elevation Cutoff Setting : deg Date Installed : 2022-08-16T23:01Z Date Removed : 2023-01-17T18:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.20 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3069443 Firmware Version : 5.5.0 Elevation Cutoff Setting : deg Date Installed : 2023-01-17T18:01Z 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+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 : TRM33429.20+GP NONE Serial Number : 0220195139 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : NONE Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2002-05-04T00:00Z Date Removed : 2004-06-01T00:00Z Additional Information : (multiple lines) 4.2 Antenna Type : TRM29659.00 SCIS Serial Number : 0220330181 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCIS Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2004-06-01T00:00Z Date Removed : 2010-08-24T09:01Z Additional Information : (multiple lines) 4.3 Antenna Type : TRM59800.80 SCIS Serial Number : 0220369853 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCIS Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2010-08-24T09:01Z Date Removed : 2018-06-18T11:01Z Additional Information : (multiple lines) 4.4 Antenna Type : TRM59800.80 SCIS Serial Number : 0220363247 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCIS Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2018-06-18T11:01Z 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 : Effective Dates : --/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 : NONE Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DDThh:mmZ) 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 8.1.1 Humidity Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : Data Sampling Interval : Accuracy (% rel h) : Aspiration : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.2.1 Pressure Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : Data Sampling Interval : Accuracy : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.3.1 Temp. Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : Data Sampling Interval : Accuracy : Aspiration : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD Notes : (multiple lines) 8.4.1 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 : UNAVCO Preferred Abbreviation : UNAVCO Mailing Address : : : : Boulder CO USA 80301 Primary Contact Contact Name : Karl Feaux Telephone (primary) : 303-381-7556 Telephone (secondary) : Fax : 303-381-7552 E-mail : karl.feaux@earthscope.org Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : Preferred Abbreviation : Mailing Address : 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 : UNAVCO Boulder Facility Archive Secondary Data Center : URL for More Information : https://www.unavco.org 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 TRM29659.00 TRM59800.00 TRM59800.80 TRM59900.00 ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3810 -->