GUAX 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) : Susan Jeffries Date Prepared : 2019-06-21 Report Type : UPDATE If Update: Previous Site Log : guax_20181108.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Isla Guadalupe Four Character ID : GUAX Monument Inscription : GUAX 2001 IERS DOMES Number : 40512M001 CDP Number : (A4) Monument Description : SHALLOW DRILLED-BRACED Height of the Monument : (m) Monument Foundation : (STEEL RODS/CONCRETE BLOCK/ROOF/etc) Foundation Depth : (m) Marker Description : Drilled hole in top of center support bolt of : antenna adaptor. Date Installed : 2001-01-19 Geologic Characteristic : Bedrock Bedrock Type : Igneous Bedrock Condition : Moderately 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 : This continuous GPS station was established much : blood, sweat, tears and vommit by J. Gonzalez : (CICESE), P. Jamason (SOPAC), A. Aspiotes and J. : Galetzka (USGS), and the gracious assistance of : the Marinas y Armada de Mexico. SCIGN - Southern : California Integrated GPS Network in : collaboration with CICESE. A secondary : measurement, the adaptor/divot distance, taken : from the bottom of the lower adaptor plate to : the center of a divot drill-mark on the : north-facing tripod leg, is 298m. 2. Site Location Information City or Town : Isla Guadalupe State or Province : Baja California Country : Mexico Tectonic Plate : Pacific Approximate Position (ITRF) X coordinate (m) : -2648836.5146 Y coordinate (m) : -4921544.435 Z coordinate (m) : 3062675.492 Latitude (N is +) : +285302.64 Longitude (E is +) : -1181722.89 Elevation (m,ellips.) : 39.2 Additional Information : Reference frame used is (ITRF2000). Coordinate : system used is (WGS84). 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03233 Firmware Version : CD00 Elevation Cutoff Setting : 10 deg Date Installed : 2001-01-19T00:00Z Date Removed : 2003-08-27T00:00Z Temperature Stabiliz. : none Additional Information : Initial measurements. Session program set to : record 60 second data from 00:00:00-11:59:59 UTC : until satellite telemetry (VSAT) to site is : established. 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02734 Firmware Version : CD00 Elevation Cutoff Setting : 10 deg Date Installed : 2003-08-27T00:00Z Date Removed : 2016-06-16T18:05Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5250K40775 Firmware Version : 5.10 Elevation Cutoff Setting : deg Date Installed : 2016-06-16T18:05Z Date Removed : 2017-01-24T12:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5250K40775 Firmware Version : 5.20 Elevation Cutoff Setting : deg Date Installed : 2017-01-24T12:01Z Date Removed : 2017-04-18T11:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5250K40775 Firmware Version : 5.22 Elevation Cutoff Setting : deg Date Installed : 2017-04-18T11:01Z Date Removed : 2019-06-18T23:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5250K40775 Firmware Version : 5.37 Elevation Cutoff Setting : deg Date Installed : 2019-06-18T23:01Z 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 : ASH701945C_M SCIT Serial Number : CR620004002 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 : 0 deg Antenna Radome Type : SCIT Radome Serial Number : 135 Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2001-01-19T00:00Z Date Removed : 2016-06-19T02:07Z Additional Information : Dome serial number is 135. 4.2 Antenna Type : TRM59800.00 SCIT Serial Number : 5330354730 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 : SCIT Radome Serial Number : 135 Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2016-06-19T02:07Z 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 : 2001-01-19/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 8.1.2 Humidity Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : 69853 Data Sampling Interval : 600 Accuracy (% rel h) : 2.0 Aspiration : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2002-03-19/2016-06-19 Notes : Changed by J. Galetzka, Wall, Gonzalez 8.2.2 Pressure Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : 69853 Data Sampling Interval : 600 Accuracy : 2.0 Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2002-03-19/2016-06-19 Notes : Changed by J. Galetzka, Wall, Gonzalez 8.3.2 Temp. Sensor Model : MET3 Manufacturer : Paroscientific Serial Number : 69853 Data Sampling Interval : 600 Accuracy : 2.0 Aspiration : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2002-03-19/2016-06-19 Notes : Changed by J. Galetzka, Wall, Gonzalez 8.4.2 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) 8.1.3 Humidity Sensor Model : WXT520 Manufacturer : Vaisala Serial Number : K2950012 Data Sampling Interval : Accuracy (% rel h) : Aspiration : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2016-06-19/CCYY-MM-DD Notes : (multiple lines) 8.2.3 Pressure Sensor Model : WXT520 Manufacturer : Vaisala Serial Number : K2950012 Data Sampling Interval : Accuracy : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2016-06-19/CCYY-MM-DD Notes : (multiple lines) 8.3.3 Temp. Sensor Model : WXT520 Manufacturer : Vaisala Serial Number : K2950012 Data Sampling Interval : Accuracy : Aspiration : Height Diff to Ant : Calibration date : (CCYY-MM-DD) Effective Dates : 2016-06-19/CCYY-MM-DD Notes : (multiple lines) 8.4.3 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 : US Geological Survey Preferred Abbreviation : USGS Mailing Address : US Geological Survey 525 S. Wilson Ave. : Pasadena CA USA 91106-3212 Primary Contact Contact Name : Kenneth W. Hudnut Telephone (primary) : 626-583-7232 Telephone (secondary) : Fax : 626-583-7827 E-mail : hudnut@usgs.gov Secondary Contact Contact Name : Evelyn Roeloffs Telephone (primary) : 360 993 8937 Telephone (secondary) : Fax : E-mail : evelynr@usgs.gov 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 : http://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 -->