TXHE Site Information Form TXDOT Continuously Operating Reference Station See Instructions at: ftp://www.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Asher Kirschbaum Date Prepared : 2020-05-01 Report Type : UPDATE If Update: Previous Site Log : txhe_20170907.log Modified/Added Sections : 3.10-3.13 1. Site Identification of the GNSS Monument Site Name : Hempstead Four Character ID : TXHE Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : 0.00m Monument Foundation : Building Foundation Depth : Marker Description : (PILLAR/BRASS PLATE/STEEL MAST/etc) Date Installed : 2005-01-01T00:00Z 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 : (multiple lines) 2. Site Location Information City or Town : Hempstead State or Province : Texas Country : United States Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -583376.165 Y coordinate (m) : -5491903.272 Z coordinate (m) : 3179899.366 Latitude (N is +) : +300556.49 Longitude (E is +) : -0960348.57 Elevation (m,ellips.) : 47.5 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 : 4445240383 Firmware Version : 1.11 Elevation Cutoff Setting : 7deg Date Installed : 2005-01-01 Date Removed : 2006-03-24 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware replaced. 3.2 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4445240383 Firmware Version : 1.15 Elevation Cutoff Setting : 7 deg Date Installed : 2006-03-24 Date Removed : 2007-05-25 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Changed elevatin mask. 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4445240383 Firmware Version : 1.15 Elevation Cutoff Setting : 5 deg Date Installed : 2007-05-25 Date Removed : 2007-10-29 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade. 3.4 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4445240383 Firmware Version : 1.20 Elevation Cutoff Setting : 5 deg Date Installed : 2007-10-29 Date Removed : 2008-04-14 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver upgrade. 3.5 Receiver Type : TRIMBLE NETR5 Satellite System : GPS Serial Number : 4725K06325 Firmware Version : 3.50 Elevation Cutoff Setting : 5 deg Date Installed : 2008-04-14 Date Removed : 2012-07-20 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade 3.6 Receiver Type : TRIMBLE NETR5 Satellite System : GPS Serial Number : 4725K06325 Firmware Version : 4.48 Elevation Cutoff Setting : 5 deg Date Installed : 2012-07-20 Date Removed : 2014-05-21T16:57Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.7 Receiver Type : TRIMBLE NETR5 Satellite System : GPS Serial Number : 4725K06325 Firmware Version : 4.85 Elevation Cutoff Setting : 5 deg Date Installed : 2014-05-21T17:11Z Date Removed : 2015-10-07T20:49Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver change 3.8 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5505R50067 Firmware Version : 5.03 Elevation Cutoff Setting : 5 deg Date Installed : 2015-10-07T21:00Z Date Removed : 2017-01-04T18:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.9 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5505R50067 Firmware Version : 5.20 Elevation Cutoff Setting : 5 deg Date Installed : 2017-01-04T18:00Z Date Removed : 2017-09-03T14:45Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.10 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5505R50067 Firmware Version : 5.30 Elevation Cutoff Setting : 5 deg Date Installed : 2017-09-03T14:45Z Date Removed : 2019-02-09 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.11 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5505R50067 Firmware Version : 5.37 Elevation Cutoff Setting : 5 deg Date Installed : 2019-02-09 Date Removed : 2019-10-20 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.12 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5505R50067 Firmware Version : 5.43 Elevation Cutoff Setting : 5 deg Date Installed : 2019-10-20 Date Removed : 2020-01-17 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.13 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO Serial Number : 5505R50067 Firmware Version : 5.44 Elevation Cutoff Setting : 5 deg Date Installed : 2020-01-17 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 : TRM41249.00 NONE Serial Number : 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 : (A4 from rcvr_ant.tab; see instructions) Antenna Radome Type : NONE Radome Serial Number : (A4 from rcvr_ant.tab; see instructions) Antenna Cable Type : (vendor & type number) Antenna Cable Length : 30m Date Installed : 2005-01-01 Date Removed : 2008-04-14 Additional Information : (multiple lines) 4.2 Antenna Type : TRM55971.00 NONE Serial Number : 30518986 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 : (A4 from rcvr_ant.tab; see instructions) Antenna Radome Type : NONE Radome Serial Number : (A4 from rcvr_ant.tab; see instructions) Antenna Cable Type : (vendor & type number) Antenna Cable Length : 30m Date Installed : 2008-04-14 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 : (if external) Effective Dates : 2005-01-01/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 : Texas Department of Transportation Preferred Abbreviation : TXDOT Mailing Address : 125 E. 11th Street Austin Texas, 78701 Primary Contact Contact Name : Darrell Thames Telephone (primary) : 512-302-2049 Telephone (secondary) : Fax : 512-465-7668 E-mail : darrell.thames@txdot.gov Secondary Contact Contact Name : Michael Cloud Telephone (primary) : Telephone (secondary) : 512-374-5059 Fax : 512-465-7668 E-mail : michael.cloud@txdot.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://www.igs.org/pub/station/general/antenna.gra