AL7600USA Site Information Form ALDOT 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 Date Prepared : 2023-01-27 Report Type : UPDATE If Update: Previous Site Log : al76_20221207.log Modified/Added Sections : 3.7 1. Site Identification of the GNSS Monument Site Name : Aldot 7 Div Dis 6 Four Character ID : AL76 Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : BRACED STEEL TUBING MOUNTED TO : PRE-STRESSED CONCRETE POLE Height of the Monument : 6.5 m Monument Foundation : CONCRETE Foundation Depth : 3.65 m Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2010-12-01T00:00Z Geologic Characteristic : SANDY CLAY Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENATRY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : NO Distance/activity : (multiple lines) Additional Information : 3.6 meter x 1.0 meter drilled shaft. : 0.3 meter concrete foundation in bottom : to support pole. 1.8 meter x 1.8 meter x 0.6 : reinforced concrete collar at base with : 6-vertical rebar spaced equally around : the pole that integrates into a horizontal : and vertical cage. Hole was : back-filled with concrete after pole : installation. Mount is a 2" square steel : tubing welded to 3/8" steel plate and : four 3/8" gusset plates bolted to top of pole : with 4-4 1/2" hex head anchors. Antenna : is attached with a SECO leveling mount. 2. Site Location Information City or Town : Eufaula State or Province : Alabama Country : United States Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : 451235.256 Y coordinate (m) : -5402665.090 Z coordinate (m) : 3348720.702 Latitude (N is +) : +315229.96 Longitude (E is +) : -0851332.48 Elevation (m,ellips.) : 100.1 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 : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 350550 Firmware Version : 7.80 Elevation Cutoff Setting : 0 deg Date Installed : 2010-12-01T20:00Z Date Removed : 2013-02-11 Temperature Stabiliz. : none Additional Information : Receiver is installed in climate controlled : office. 3.2 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 350550 Firmware Version : 8.51 Elevation Cutoff Setting : 0 deg Date Installed : 2013-02-11 Date Removed : 2013-04-24 Temperature Stabiliz. : none Additional Information : 23-APR-2013 fix errors in previous log : al76_20130211.log, it was missing new : firmware info : 25-APR-2013 Receiver change 3.3 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 350556 Firmware Version : 8.70 Elevation Cutoff Setting : 0 deg Date Installed : 2013-04-24 Date Removed : 2014-07-21T20:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.4 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 350556 Firmware Version : 8.71 Elevation Cutoff Setting : 0 deg Date Installed : 2014-07-21T20:23Z Date Removed : 2016-12-07T16:00Z Temperature Stabiliz. : none Additional Information : Firmware update. 3.5 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 350556 Firmware Version : 9.20/3.823 Elevation Cutoff Setting : 0 deg Date Installed : 2016-12-07T16:24Z Date Removed : 2022-11-30T17:55Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.6 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL Serial Number : 2090626 Firmware Version : 4.52/7.711 Elevation Cutoff Setting : 0 deg Date Installed : 2022-11-30T17:55Z Date Removed : 2023-01-18T16:28Z Temperature Stabiliz. : none Additional Information : new receiver 3.7 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL Serial Number : 2090626 Firmware Version : 4.60/7.811 Elevation Cutoff Setting : 0 deg Date Installed : 2023-01-18T16:28Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : none Additional Information : new firmware 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 : LEIAX1202GG NONE Serial Number : 08090166 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 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Belden Coax 9913 Antenna Cable Length : 27.4 m Date Installed : 2010-12-01 Date Removed : 2013-04-24 Additional Information : Antenna change 4.2 Antenna Type : LEIAX1202GG NONE Serial Number : 08270015 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 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Belden Coax 9913 Antenna Cable Length : 27.4 m Date Installed : 2013-04-24 Date Removed : 2022-11-30T18:00Z Additional Information : Antenna change 4.3 Antenna Type : LEIAR10 NONE Serial Number : 24144009 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 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Belden Coax 9913 Antenna Cable Length : 27.4 m Date Installed : 2022-11-30T18:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : Antenna change 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 : 2010-12-01/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 : Radio Antenna Tower Observed Degradations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : ALDOT 7 DIV DIS 6 Office radio tower on a : 143 degree azimuth at 532 feet away. 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 : Water Tower Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : ALDOT 7 DIV DIS 6 Office water tower on a : 141 degree azimuth at 500 feet away from old : prison camp less than 12 degree vertical. 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 : Alabama Department of Transportation Preferred Abbreviation : ALDOT Mailing Address : 1409 Coliseum Blvd. Montgomery, AL 36130 Primary Contact Contact Name : John Russell Telephone (primary) : 334-242-6405 Telephone (secondary) : 334-850-1311 Fax : 334-269-4689 E-mail : russellj@dot.state.al.us Secondary Contact Contact Name : Dalton L. Chamblee, P.E. Telephone (primary) : 334-353-6101 Telephone (secondary) : 334-850-4702 Fax : 334-269-4689 E-mail : chambleed@dot.state.al.us Additional Information : 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