VTD7 Site Information Form VTAT Continuously Operating Reference Station See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Don Haw as per Elisabeth Fenn Date Prepared : 2022-08-22 Report Type : UPDATE If Update: Previous Site Log : vtd7_20190426.log Modified/Added Sections : 4.2 1. Site Identification of the GNSS Monument Site Name : SAINT JOHNSBURY Four Character ID : VTD7 Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : (m) Monument Foundation : BLOCK MASONRY Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2006-09-27T00:00Z 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/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : THE MONUMENT IS ATTACHED TO A TWO STORY CONCRETE : BLOCK BUILDING WITH A 6 FT CONCRETE FOUNDATION : BUILT IN 1972. MAST IS A 1.75 INCH DIA GALV : PIPE THAT IS 108 INCHES LONG. THE MAST ATTACHED : TO A STEEL MOUNTING FRAME WITH THREE ATTACHMENTS : CONSISTING OF 3/8 INCH SS THROUGH BOLTS. THE : MOUNTING FRAME IS ATTACHED TO THE BUILDING USING : 8 THROUGH BOLTED ATTACHMENT POINTS THAT CONSIST : OF 1/2 INCH SS THREADED RODS AND NUTS. 2. Site Location Information City or Town : SAINT JOHNSBURY State or Province : VERMONT Country : UNITED STATES OF AMERICA Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : 1408647.547 Y coordinate (m) : -4341988.941 Z coordinate (m) : 4439902.570 Latitude (N is +) : +442352.35 Longitude (E is +) : -0720132.40 Elevation (m,ellips.) : 165.4 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 NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 3.50/3 Elevation Cutoff Setting : 0 Date Installed : 2006-12-11 Date Removed : 2008-08-26T13:10Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade. 3.2 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 3.64 Elevation Cutoff Setting : 0 Date Installed : 2008-08-26T13:15Z Date Removed : 2009-01-13 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade. 3.3 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 3.80 Elevation Cutoff Setting : 0 Date Installed : 2009-01-13 Date Removed : 2009-12-15 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade. 3.4 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 4.03 Elevation Cutoff Setting : 0 Date Installed : 2009-12-15 Date Removed : 2010-09-30 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade. 3.5 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 4.17 Elevation Cutoff Setting : 0 Date Installed : 2010-09-30 Date Removed : 2010-12-15 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade. 3.6 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 4.19 Elevation Cutoff Setting : 0 Date Installed : 2010-12-15 Date Removed : 2013-08-01 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware updated 3.7 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 4.70 Elevation Cutoff Setting : 0 Date Installed : 2013-08-01 Date Removed : 2015-05-06T12:45Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.8 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4645K03035 Firmware Version : 4.87 Elevation Cutoff Setting : 0 deg Date Installed : 2015-05-06T12:53Z Date Removed : 2015-09-22T12:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver change 3.9 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5528R50023 Firmware Version : 4.93 Elevation Cutoff Setting : 0 deg Date Installed : 2015-09-22T12:00Z Date Removed : 2019-04-26T18:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.10 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5528R50023 Firmware Version : 5.37 Elevation Cutoff Setting : 0 deg Date Installed : 2019-04-26T18:09Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) 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 : TRM55971.00 NONE Serial Number : 30131993 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 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 : TRIMBLE 41300-30 REV A Antenna Cable Length : 30 Date Installed : 2006-09-27 Date Removed : 2022-08-17T14:19Z Additional Information : (multiple lines) 4.2 Antenna Type : TRM115000.10 NONE Serial Number : 62143B0056 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 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 : TRIMBLE 41300-30 REV A Antenna Cable Length : 30 Date Installed : 2022-08-17T14:19Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : new antenna 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 : 2006-12-11/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 : (GPS/GLONASS/DORRIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) 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 8.1.1 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) 8.1.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) 8.2.1 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) 8.2.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) 8.3.1 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) 8.3.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) 8.4.1 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) 8.4.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) 8.5.1 Other Instrumentation : (multiple lines) 8.5.x Other Instrumentation : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.1 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) 9.1.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 : VERMONT AGENCY OF TRANSPORTATION Preferred Abbreviation : VTRANS Mailing Address : 1 NATIONAL LIFE DRIVE : DRAWER 33 : MONTPELIER, VERMONT 05633 Primary Contact Contact Name : DANIEL MARTIN Telephone (primary) : 802 828-2952 Telephone (secondary) : Fax : 802 828-2334 E-mail : DAN.MARTIN@NOAA.GOV Secondary Contact Contact Name : BRAD HERRING Telephone (primary) : 802-828-2813 Telephone (secondary) : Fax : 802-828-2334 E-mail : Brad.Herring@vermont.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 : https://geodesy.noaa.gov/corsdata/ Secondary Data Center : URL for More Information : https://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 https://files.igs.org/pub/station/general/antenna.gra