WIDC00USA Site Information Form (site log) International GNSS Service See Instructions at: ftp://igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : David Maggert Date Prepared : 2019-07-09 Report Type : UPDATE If Update: Previous Site Log : widc_20190403.log Modified/Added Sections : 3.9, 3.10 1. Site Identification of the GNSS Monument Site Name : Wide Canyon Four Character ID : WIDC Monument Inscription : IERS DOMES Number : 49917M001 CDP Number : Monument Description : Wyatt/Agnew drilled-braced Height of the Monument : Monument Foundation : Foundation Depth : Marker Description : raised nipple on lower part of antenna adaptor Date Installed : 1997-09-30T00:43Z Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC Bedrock Condition : FRESH Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : SCIGN - Southern California Integrated GPS : Network. The monument is composed of four 1 : in. diameter stainless steel rods in a : tripod-with-vertical-rod configuration, the : rods are grouted into solid meta-sediment at : 5-6 ft. depths and are welded together : approximately 3 ft. above ground level:concern : about lack of near-surface ground-surface : isolation 2. Site Location Information City or Town : Sky Valley State or Province : California Country : United States of America Tectonic Plate : NORTH AMERICAN Approximate Position (ITRF) X coordinate (m) : -2354850.1700 Y coordinate (m) : -4745524.0100 Z coordinate (m) : 3540693.1000 Latitude (N is +) : +335605.13 Longitude (E is +) : -1162330.41 Elevation (m,ellips.) : 445.04 Additional Information : Located on eastern abutment of Wide Canyon : Flood Control Dam in Sky Valley, CA (near : Desert Hot Springs) on Riverside County : property. : Riverside County. 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01385 Firmware Version : 1E95-1D01 Elevation Cutoff Setting : Date Installed : 1997-09-30T00:43Z Date Removed : 1997-10-08T20:37Z Temperature Stabiliz. : Additional Information : New Installation 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01391 Firmware Version : 1E95-1D01 Elevation Cutoff Setting : Date Installed : 1997-10-08T20:37Z Date Removed : 1998-07-10T19:00Z Temperature Stabiliz. : Additional Information : Receiver swap, previous rx failed 3.3 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03095 Firmware Version : 1F50 Elevation Cutoff Setting : Date Installed : 1998-07-10T19:00Z Date Removed : 1999-07-14T00:17Z Temperature Stabiliz. : Additional Information : SCIGN receiver swap ASHTECH LP Z-XII 700845-10F 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02647 Firmware Version : CC00 Elevation Cutoff Setting : 10 deg Date Installed : 1999-07-14T00:17Z Date Removed : 2004-04-17T02:52Z Temperature Stabiliz. : Additional Information : Receiver swap for GPS week rollover : compliance. 3.5 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02807 Firmware Version : CC00 Elevation Cutoff Setting : 10 deg Date Installed : 2004-04-17T02:52Z Date Removed : 2010-09-06T22:52Z Temperature Stabiliz. : Additional Information : Problematic receiver swapped. 3.6 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4927175319 Firmware Version : 1.2-5 Elevation Cutoff Setting : 0 deg Date Installed : 2010-09-06T22:55Z Date Removed : 2013-11-19T20:53Z Temperature Stabiliz. : Additional Information : 3.7 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5250K54799 Firmware Version : 4.81 Elevation Cutoff Setting : 5 deg Date Installed : 2013-11-19T21:10Z Date Removed : 2014-09-23T20:26Z Temperature Stabiliz. : Additional Information : 3.8 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5250K54799 Firmware Version : 4.85 Elevation Cutoff Setting : 5 deg Date Installed : 2014-09-23T20:26Z Date Removed : 2016-02-28T00:00Z Temperature Stabiliz. : Additional Information : 3.9 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+SBAS Serial Number : 5250K54799 Firmware Version : 5.10 Elevation Cutoff Setting : 5 deg Date Installed : 2016-02-28T02:05Z Date Removed : 2018-04-17T00:00Z Temperature Stabiliz. : Additional Information : 3.10 Receiver Type : TRIMBLE NETR9 Satellite System : GPS Serial Number : 5250K54799 Firmware Version : 5.10 Elevation Cutoff Setting : 5 deg Date Installed : 2018-04-17T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : Additional Information : data from USGS now only contains GPS 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 : ASH700936D_M SNOW Serial Number : CR12736 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : SNOW Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 1997-09-30T00:00Z Date Removed : 2013-11-19T20:52Z Additional Information : New installation. : Antenna height is fixed, and measured from : the raised nipple on the lower part of the : antenna adaptor (peak of center support : screw) to the BPA. : ASHTECH Choke Ring 700936 4.2 Antenna Type : TRM57971.00 NONE Serial Number : 5000115156 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0083 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 : Antenna Cable Length : Date Installed : 2013-11-19T21:10Z 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) : (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 : 1997-09-30/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 : (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 : USGS Preferred Abbreviation : USGS Mailing Address : USGS Pasadena Field Office : 525 South Wilson Avenue : Pasadena, CA 91107 Primary Contact Contact Name : Ken 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) : Telephone (secondary) : Fax : E-mail : evelynr@usgs.gov Additional Information : 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 : 13. More Information Primary Data Center : CDDIS Secondary Data Center : IGN URL for More Information : http://www.unavco.org Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions (insert text graphic from antenna.gra)