MATB00USA Site Information Form MADOT Continuously Operating Reference Station See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Lijuan Sun Date Prepared : 2023-09-14 Report Type : UPDATE If Update: Previous Site Log : matb_20230907.log Modified/Added Sections : 3.8 1. Site Identification of the GNSS Monument Site Name : MATB TEWKSBURY Four Character ID : MATB Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : PILLAR Height of the Monument : 3.47 m Monument Foundation : CONCRETE PILLAR Foundation Depth : 3.05 m Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2009-10-08T00:00Z 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 : ANTENNA IS MOUNTED ON A SECO ADJUSTABLE TILT : MONUMENT MOUNT P/N 2072 ON A 3.5-INCH DIA : STEEL MAST 8-FT LONG. THE MAST IS INSTALLED : ON 2-FT DIA, 6-FT LONG CONCRETE CYLINDER, WHICH : INCREASES TO A 3-FT DIA, 7-FT 8-IN LONG CONCRETE : CYLINDER. THIS VARIABLE DIA CONCRETE PILLAR : DESCENDS 10-FT BELOW GROUND WITH ITS CENTER OF : MASS BEING BELOW THE FROST LINE AND RISES : 3-FT 10-IN ABOVE GROUND. THE CONCRETE IS : REINFORCED WITH A STEEL REBAR CAGE WITHIN. 2. Site Location Information City or Town : Tewksbury State or Province : Massachusetts Country : USA Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : 1509063.425 Y coordinate (m) : -4451039.450 Z coordinate (m) : 4297359.590 Latitude (N is +) : +423748.03 Longitude (E is +) : -0711617.33 Elevation (m,ellips.) : 11.9 Additional Information : ARP ITRF2014 POSITION (EPOCH 2010.00) : Computed in Jun 2022 using 27 days of data. 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495924 Firmware Version : 8.71/6.112 Elevation Cutoff Setting : 0 deg Date Installed : 2011-03-08 Date Removed : 2015-04-14T23:07Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.2 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495924 Firmware Version : 9.20/6.404 Elevation Cutoff Setting : 0 deg Date Installed : 2015-04-14T23:07Z Date Removed : 2018-01-27T16:43Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.3 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495924 Firmware Version : 9.20/6.407 Elevation Cutoff Setting : 0 deg Date Installed : 2018-01-27T16:43Z Date Removed : 2018-10-23T19:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver change 3.4 Receiver Type : LEICA GR30 Satellite System : GPS+GLO Serial Number : 1706443 Firmware Version : 4.31/7.403 Elevation Cutoff Setting : 0 deg Date Installed : 2018-10-23T19:00Z Date Removed : 2021-08-03 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.5 Receiver Type : LEICA GR30 Satellite System : GPS+GLO Serial Number : 1706443 Firmware Version : 4.50/7.710 Elevation Cutoff Setting : 0 deg Date Installed : 2021-08-03 Date Removed : 2022-01-19 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.6 Receiver Type : LEICA GR30 Satellite System : GPS+GLO Serial Number : 1706443 Firmware Version : 4.52/7.711 Elevation Cutoff Setting : 0 deg Date Installed : 2022-01-19 Date Removed : 2022-12-14T22:48Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.7 Receiver Type : LEICA GR30 Satellite System : GPS+GLO Serial Number : 1706443 Firmware Version : 4.61/7.811 Elevation Cutoff Setting : 0 deg Date Installed : 2022-12-14T22:48Z Date Removed : 2023-08-29T23:14Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.8 Receiver Type : LEICA GR30 Satellite System : GPS+GLO Serial Number : 1706443 Firmware Version : 4.70/7.813 Elevation Cutoff Setting : 0 deg Date Installed : 2023-08-29T23:14Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.x 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 : LEIAX1203+GNSS NONE Serial Number : 09470001 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0668 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 : Times Microwave Systems LMR-400 Antenna Cable Length : 9.1 m Date Installed : 2011-03-08 Date Removed : 2016-05-26T15:15Z Additional Information : SECO mount used. 0.0350 m : Plus 1" (0.0254 m) extension #2072-001 4.2 Antenna Type : LEIAR20 LEIM Serial Number : 17183017 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0668 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIM Radome Serial Number : Antenna Cable Type : Times Microwave Systems LMR-400 Antenna Cable Length : 9.1 m Date Installed : 2016-05-26T15:15Z Date Removed : 2022-05-17T17:00Z Additional Information : SECO mount used. 0.0350 m : Plus 1" (0.0254 m) extension #2072-001 4.3 Antenna Type : LEIAR20 LEIM Serial Number : 17183017 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0350 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIM Radome Serial Number : Antenna Cable Type : Times Microwave Systems LMR-400 Antenna Cable Length : 9.1 m Date Installed : 2022-05-17T17:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : spacer removed 2022-05-17 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 : 2009-09-20/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/DORIS/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 : Massachusetts Department of Transportation Preferred Abbreviation : MassDOT Mailing Address : 10 Park Plaza Rm. 4210 : Boston, MA 02116 Primary Contact Contact Name : Evanson Browne Telephone (primary) : 857-368-9695 Telephone (secondary) : Fax : 857-368-0642 E-mail : evanson.browne@state.ma.us Secondary Contact Contact Name : John Barnes Telephone (primary) : 857-368-9696 Telephone (secondary) : Fax : 857-368-0642 E-mail : john.barnes@state.ma.us 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