VIRC 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) : William Hammond Date Prepared : 2024-01-11 Report Type : UPDATE If Update: Previous Site Log : Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Four Character ID : VIRC Monument Inscription : IERS DOMES Number : CDP Number : (A4) Monument Description : Steel Pin in Rock Height of the Monument : (m) Monument Foundation : UNKNOWN Foundation Depth : (m) Marker Description : UNKNOWN Date Installed : 2004-03-17 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) Distance/activity : (multiple lines) Additional Information : 2. Site Location Information City or Town : Virginia City State or Province : NV Country : United States Tectonic Plate : North America Approximate Position (ITRF) X coordinate (m) : -2443152.7779 Y coordinate (m) : -4294278.9618 Z coordinate (m) : 4023361.6194 Latitude (N is +) : +392045.13 Longitude (E is +) : -1193812.96 Elevation (m,ellips.) : 2013.9828 Additional Information : 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2004-03-17 Date Removed : 2005-10-13 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.2 Receiver Type : TRIMBLE Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2005-10-13 Date Removed : 2006-06-01 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.3 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2006-06-01 Date Removed : 2007-07-14 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2007-07-14 Date Removed : 2009-05-06 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2009-05-06 Date Removed : 2012-02-09 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE R7 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2012-02-09 Date Removed : 2013-02-01 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2013-02-01 Date Removed : 2014-02-07 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.8 Receiver Type : TRIMBLE R7 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2014-02-07 Date Removed : 2016-09-22 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.9 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2016-09-22 Date Removed : 2018-01-24 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.10 Receiver Type : TRIMBLE R7 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2018-01-24 Date Removed : 2018-10-12 Temperature Stabiliz. : none Additional Information : (multiple lines) 3.11 Receiver Type : TRIMBLE 5700 Satellite System : GPS Serial Number : Firmware Version : Elevation Cutoff Setting : Date Installed : 2018-10-12 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 : TRM41249.00 Serial Number : Antenna Reference Point : Marker->ARP Up Ecc. (m) : 0.100 Marker->ARP North Ecc(m) : 0.000 Marker->ARP East Ecc(m) : 0.000 Alignment from True N : 15 deg Antenna Radome Type : Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2004-03-17 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.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 : Nevada Bureau of Mines and Geology Preferred Abbreviation : NBMG Mailing Address : 1664 N. Virginia St. MS178 : Primary Contact Contact Name : William Hammond Telephone (primary) : Telephone (secondary) : Fax : E-mail : whammond@unr.edu 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 : (A10) 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 : Nevada Geodetic Laboratory Secondary Data Center : UNAVCO URL for More Information : http://geodesy.unr.edu Hardcopy on File Site Map : http://geodesy.unr.edu/NGLStationPages/stations/VIRC.sta 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