OXMT 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) : Mario Aranha Date Prepared : 2023-12-02 Report Type : UPDATE If Update: Previous Site Log : oxmt_20221222.log Modified/Added Sections : 4.1,4.2 1. Site Identification of the GNSS Monument Site Name : Ox Mountain Four Character ID : OXMT Monument Inscription : IERS DOMES Number : 44530M001 CDP Number : Monument Description : Height of the Monument : 1 m Monument Foundation : BOREHOLE CASING Foundation Depth : Marker Description : Date Installed : 2004-02-12T00:00Z Geologic Characteristic : BEDROCK Bedrock Type : IGNEOUS Bedrock Condition : Fracture Spacing : Fault zones nearby : YES/San Andreas Fault Distance/activity : Additional Information : 6 1/4" Diameter borehole casing monument. : Monument is constructed by welding the first : flange onto the borehole casing and a second : blind flange is bolted above the lower flange. A : 1.25" diameter pipe is welded to the top of the : upper flange. Then a SCIGN adaptor is welded : onto the 1.25" pipe. The borehole and adapters : are surrounded by a 14" diameter steel shroud. : Reference point is mark on SCIGN adaptor. Mini- : PBO site collocated with borehole strain, and : seismic instrumentation. 2. Site Location Information City or Town : Half Moon Bay State or Province : California Country : USA Tectonic Plate : North American/Pacific Approximate Position (ITRF) X coordinate (m) : -2716642.9554 Y coordinate (m) : -4276730.4726 Z coordinate (m) : 3861635.4827 Latitude (N is +) : +372957.71 Longitude (E is +) : -1222527.56 Elevation (m,ellips.) : 209.0775 Additional Information : Located on Scarper's Ridge above Half Moon Bay 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR520014801 Firmware Version : CJ10 Elevation Cutoff Setting : 0 deg Date Installed : 2004-02-12T22:07Z Date Removed : 2004-06-22T17:58Z Temperature Stabiliz. : Additional Information : The receiver malfunctioned and was replaced. 3.2 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR520014804 Firmware Version : CJ10 Elevation Cutoff Setting : 0 deg Date Installed : 2004-06-22T17:58Z Date Removed : 2005-11-07T00:00Z Temperature Stabiliz. : Additional Information : 3.3 Receiver Type : ASHTECH UZ-12 Satellite System : GPS Serial Number : ZR520014803 Firmware Version : CJ10 Elevation Cutoff Setting : 0 deg Date Installed : 2005-11-07T00:00Z Date Removed : 2010-02-02T00:00Z Temperature Stabiliz. : Additional Information : Receiver damaged by lightening strike No : receiver at station from 1/28/2010 until : 2/2/2010. 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01384 Firmware Version : CC00 Elevation Cutoff Setting : 0 deg Date Installed : 2010-02-02T00:00Z Date Removed : 2011-03-29T23:04Z Temperature Stabiliz. : Additional Information : 3.5 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-00974 Firmware Version : 3.5 Mar,16,2011 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2011-03-29T23:04Z Date Removed : 2011-08-01T23:17Z Temperature Stabiliz. : Additional Information : 3.6 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-00974 Firmware Version : 3.5 Jul,15,2011 p2 Elevation Cutoff Setting : 5 deg Date Installed : 2011-08-01T23:17Z Date Removed : 2012-06-05T23:10Z Temperature Stabiliz. : Additional Information : 3.7 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-00974 Firmware Version : 3.6 Feb,28,2012 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2012-06-05T23:10Z Date Removed : 2013-05-29T20:03Z Temperature Stabiliz. : Additional Information : 3.8 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-00974 Firmware Version : 4.0 Dec,21,2012 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2013-05-29T20:03Z Date Removed : 2016-12-23T00:00Z Temperature Stabiliz. : Additional Information : 3.9 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-00974 Firmware Version : 4.7 Oct,18,2016 p2 Elevation Cutoff Setting : 5 deg Date Installed : 2016-12-23T00:00Z Date Removed : 2019-04-02T20:50Z Temperature Stabiliz. : Additional Information : 3.10 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-00974 Firmware Version : 4.7 Feb,21,2019 p10 Elevation Cutoff Setting : 5 deg Date Installed : 2019-04-02T20:50Z Date Removed : 2021-01-14T00:00Z Temperature Stabiliz. : Additional Information : 3.11 Receiver Type : SEPT POLARX5 Satellite System : GPS+GLO Serial Number : 3052319 Firmware Version : 5.3.0 Elevation Cutoff Setting : 0 deg Date Installed : 2021-01-14T00:00Z Date Removed : 2021-02-01T00:18Z Temperature Stabiliz. : Additional Information : 3.12 Receiver Type : SEPT POLARX5 Satellite System : GPS+GLO Serial Number : 3052319 Firmware Version : 5.4.0 Elevation Cutoff Setting : 0 deg Date Installed : 2021-02-01T00:18Z Date Removed : 2022-12-22T00:00Z Temperature Stabiliz. : Additional Information : 3.13 Receiver Type : SEPT POLARX5 Satellite System : GPS+GLO Serial Number : 3052319 Firmware Version : 5.5.0 Elevation Cutoff Setting : 0 deg Date Installed : 2022-12-22T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : Additional Information : 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 : ASH701945C_M SCIT Serial Number : CR620014814 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : Marker->ARP East Ecc(m) : Alignment from True N : 0 Antenna Radome Type : SCIT Radome Serial Number : 0033 Antenna Cable Type : Andrew Heliax 1/2" diam. Antenna Cable Length : 20 Date Installed : 2004-02-12T22:07Z Date Removed : 2023-12-01T00:00Z Additional Information : Mounted on SCIGN D3 antenna adapter s/n 0129. : Antenna height is standard value relative to : adapter reference point, a dimpled nub. Magnetic : declination = ~15 degrees East. 4.2 Antenna Type : SEPCHOKE_B3E6 SPKE Serial Number : 6162 Antenna Reference Point : Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : Marker->ARP East Ecc(m) : Alignment from True N : 0 Antenna Radome Type : SPKE Radome Serial Number : AUTO_6162_OXMT Antenna Cable Type : Antenna Cable Length : Date Installed : 2023-12-01T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : Mounted on SCIGN D3 antenna adapter s/n 0129. : Antenna height is standard value relative to : adapter reference point, a dimpled nub. Magnetic : declination = ~15 degrees East. 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.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 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 : UC Berkeley Preferred Abbreviation : BARD Mailing Address : University of California, Berkeley, 307 McCone : Hall #4760, Berkeley CA 94720-4760 Primary Contact Contact Name : Mario Aranha Telephone (primary) : 510-643-3898 Telephone (secondary) : Fax : E-mail : mario@seismo.berkeley.edu Secondary Contact Contact Name : Jonah Merritt Telephone (primary) : Telephone (secondary) : Fax : E-mail : jmerritt@berkeley.edu 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 : NCEDC Secondary Data Center : URL for More Information : https://ncedc.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 : Antenna Graphics with Dimensions https://files.igs.org/pub/station/general/antenna.gra