VABG Site Information Form VDMME Continuously Operating Reference Station See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : cors-adm Date Prepared : 2015-03-26 Report Type : UPDATE If Update: Previous Site Log : vabg_20141215.log Modified/Added Sections : 1 2 1. Site Identification of the GNSS Monument Site Name : BIG STONE GAP VA Four Character ID : VABG Monument Inscription : 1000 IERS DOMES Number : 49462M001 CDP Number : (A4) Monument Description : SCIGN mount attached to the interior roof : parapet wall by a stainless steel frame. The : Serial number of the SCIGN mount is 1000. The : reference datum is the divoted top of the : center support screw on the bottom plate. : The monument is located on the southeast : corner of the roof of the Virginia Department : of Mines Minerals and Energy Building. Height of the Monument : (m) Monument Foundation : ROOF PARAPET Foundation Depth : (m) Marker Description : SCIGN MOUNT Date Installed : 2005-04-14T00:00Z Geologic Characteristic : MIDDLE SILURIAN Bedrock Type : MASSIVE SANDSTONE Bedrock Condition : FRESH Fracture Spacing : Fault zones nearby : NO Distance/activity : Additional Information : Strata dips approx. 6-8 DEG E. : The distance between bottom of top plate and : top of bottom plate, measured at the left side : of the V-notch at the north side of the mount : was measured three times as .66, .655 and : .66 cm. The distance between bottom of top : plate and top of bottom plate, measured at the : eastern leveling screw was measured three times : as .795 cm. 2. Site Location Information City or Town : Big Stone Gap State or Province : Virginia Country : United States Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : 643980.809 Y coordinate (m) : -5069331.010 Z coordinate (m) : 3804939.319 Latitude (N is +) : +365120.65 Longitude (E is +) : -0824536.82 Elevation (m,ellips.) : 574.0 Additional Information : ARP IGS08 POSITION (EPOCH 2005.00) : Computed in Aug 2011 using data through gpswk : 1631. 3. GNSS Receiver Information 3.1 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4450241595 Firmware Version : 1.1-1 Elevation Cutoff Setting : 0 Date Installed : 2005-03-10 Date Removed : 2005-10-25T18:03Z Temperature Stabiliz. : 20-24 Additional Information : Located in locked computer room with : temperature, humidity control and Backup power : supply. Primary power is through a UPS system. : Secondary power is provided by a set of three : 12V batteries. Clock steering and multipath : reduction is enabled. 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4450241595 Firmware Version : 1.1-3 Elevation Cutoff Setting : 0 Date Installed : 2005-10-25T18:03Z Date Removed : 2008-02-15 Temperature Stabiliz. : 20-24 Additional Information : Located in locked computer room with : temperature, humidity control and Backup power : supply. Primary power is through a UPS system. : Secondary power is provided by a set of three : 12V batteries. Clock steering and multipath : reduction is enabled. 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4527253298 Firmware Version : 1.2-0 Elevation Cutoff Setting : 0 Date Installed : 2008-02-15 Date Removed : 2008-04-24 Temperature Stabiliz. : Additional Information : Located in locked computer room with : temperature, humidity control and Backup power : supply. Primary power is through a UPS system. : Secondary power is provided by a set of three : 12V batteries. Clock steering and multipath : reduction is enabled. 3.4 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4450241595 Firmware Version : 1.1-5 Elevation Cutoff Setting : 0 Date Installed : 2008-04-24 Date Removed : 2009-10-30 Temperature Stabiliz. : Additional Information : Located in locked computer room with : temperature, humidity control and Backup power : supply. Primary power is through a UPS system. : Secondary power is provided by a set of three : 12V batteries. Clock steering and multipath : reduction is enabled. 3.5 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4450241595 Firmware Version : 1.2-0 Elevation Cutoff Setting : 0 Date Installed : 2010-01-04 Date Removed : 2014-11-13T18:00Z Temperature Stabiliz. : Additional Information : Located in locked computer room with : temperature, humidity control and Backup power : supply. Primary power is through a UPS system. : Secondary power is provided by a set of three : 12V batteries. Clock steering and multipath : reduction is enabled. 3.6 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5428R49108 Firmware Version : 4.85 Elevation Cutoff Setting : 0 deg Date Installed : 2014-11-14T15:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Located in locked computer room with : temperature, humidity control and Backup power : supply. Primary power is through a UPS system. : Secondary power is provided by a set of three : 12V batteries. Clock steering and multipath : reduction is enabled. 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 NONE Serial Number : 12668805 Antenna Reference Point : TOP 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 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : 30m LMR-400 and 15m LMR-400-LLPL Antenna Cable Length : 45m Date Installed : 2005-04-14 Date Removed : 2014-11-13T18:00Z Additional Information : 30m of LMR-400 cable run through 1-1/2" PVC : conduit to building main air intake on : roof. Inline lighting arrester attached : before next 15m of LMR-400-LLPL cable. : LMR-400-LLPL cable run to receiver in : computer room. Antenna is aligned to : true north with hand compass and given : magnetic declination. 4.2 Antenna Type : TRM57971.00 NONE Serial Number : 5000118418 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 : LMR-400 Antenna Cable Length : 60m Date Installed : 2014-11-14T15:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : 30m of LMR-400 cable run through 1-1/2" PVC : conduit to building main air intake on : roof. Inline lighting arrester attached : before next 15m of LMR-400-LLPL cable. : LMR-400-LLPL cable run to receiver in : computer room. Antenna is aligned to : true north with hand compass and given : magnetic declination. 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 : (if external) Effective Dates : 2005-03-10/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 Interference : (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) 9.2.1 Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/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) 9.3.1 Signal Obstructions : (TREES/BUILDLINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDLINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.1 Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : The Virginia Department of Mines Minerals and : Energy Preferred Abbreviation : VA DMME Mailing Address : DRAWER 900 : BIG STONE GAP VA 24219-0900 Primary Contact Contact Name : Steven B. Mullins Telephone (primary) : 276 523 8192 Telephone (secondary) : Fax : 276 523 8141 E-mail : steven.mullins@dmme.virginia.gov Secondary Contact Contact Name : Daniel X. Kestner Telephone (primary) : 276 523 8193 Telephone (secondary) : Fax : 276 523 8141 E-mail : daniel.kestner@dmme.virginia.gov Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : (multiple lines) Preferred Abbreviation : (A10) Mailing Address : (multiple lines) 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 : ftp://geodesy.noaa.gov/cors Secondary Data Center : ftp://alt.ngs.noaa.gov/cors URL for More Information : http://geodesy.noaa.gov/CORS 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 ftp://igscb.jpl.nasa.gov/pub/station/general/antenna.gra