IACL00USA Site Information Form IADT Continuously Operating Reference Station See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Dan Messerich, PLS Date Prepared : 2024-02-23 Report Type : UPDATE If Update: Previous Site Log : iacl_20230808.log Modified/Added Sections : 3.9 1. Site Identification of the GNSS Monument Site Name : IOWA DOT CLARION Four Character ID : IACL Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : ALUMINUM MAST Height of the Monument : 7.5 m Monument Foundation : CONCRETE Foundation Depth : 1.4 m Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2008-09-08T00:00Z 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 : The antenna is mounted atop a 3.5" aluminum pipe : The pipe structure is bolted to a large masonry : building. The building was built in 1961. It is : a brick and block structure with a slab on grade : foundation. 2. Site Location Information City or Town : Clarion State or Province : Iowa Country : United States Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -307016.944 Y coordinate (m) : -4682472.137 Z coordinate (m) : 4305825.265 Latitude (N is +) : +424351.62 Longitude (E is +) : -0934504.89 Elevation (m,ellips.) : 333.1 Additional Information : ARP IGS08 POSITION (EPOCH 2005.00) : Computed in Jan 2014 using 14 days of data. 3. GNSS Receiver Information 3.1 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 356109 Firmware Version : 8.51/3.019 Elevation Cutoff Setting : 0 deg Date Installed : 2008-09-08 Date Removed : 2014-02-04T03:40Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.2 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 356109 Firmware Version : 8.71/3.822 Elevation Cutoff Setting : 0 deg Date Installed : 2014-02-04T03:40Z Date Removed : 2015-06-26T03:47Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.3 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 356109 Firmware Version : 9.20/3.823 Elevation Cutoff Setting : 0 deg Date Installed : 2015-06-26T03:47Z Date Removed : 2018-10-03T19:44Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.4 Receiver Type : LEICA GR50 Satellite System : GPS+GLO Serial Number : 1870808 Firmware Version : 4.31/7.403 Elevation Cutoff Setting : 0 deg Date Installed : 2018-10-03T19:44Z Date Removed : 2021-06-30 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new receiver 3.5 Receiver Type : LEICA GR50 Satellite System : GPS+GLO Serial Number : 1870808 Firmware Version : 4.50/7.710 Elevation Cutoff Setting : 0 deg Date Installed : 2021-06-30 Date Removed : 2022-11-11 Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.6 Receiver Type : LEICA GR50 Satellite System : GPS+GLO Serial Number : 1870808 Firmware Version : 4.60/7.811 Elevation Cutoff Setting : 0 deg Date Installed : 2022-11-11 Date Removed : 2022-12-01T20:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.7 Receiver Type : LEICA GR50 Satellite System : GPS+GLO Serial Number : 1870808 Firmware Version : 4.61/7.811 Elevation Cutoff Setting : 0 deg Date Installed : 2022-12-01T20:00Z Date Removed : 2023-07-26T22:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.8 Receiver Type : LEICA GR50 Satellite System : GPS+GLO Serial Number : 1870808 Firmware Version : 4.70/7.813 Elevation Cutoff Setting : 0 deg Date Installed : 2023-07-26T22:00Z Date Removed : 2024-02-23T14:30Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.9 Receiver Type : LEICA GR50 Satellite System : GPS+GLO Serial Number : 1870808 Firmware Version : 4.80/7.900 Elevation Cutoff Setting : 0 deg Date Installed : 2024-02-23T14:30Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) 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 : 08020010 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 : TIMES MICROWAVE SYSTEMS LMR400 Antenna Cable Length : 52 m Date Installed : 2008-09-08 Date Removed : 2018-10-03T19:44Z Additional Information : (multiple lines) 4.2 Antenna Type : LEIAR10 NONE Serial Number : 21248019 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 : TIMES MICROWAVE SYSTEMS LMR400 Antenna Cable Length : 52 m Date Installed : 2018-10-03T19:44Z 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 : 2008-09-08/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 : Iowa Department of Transportation Preferred Abbreviation : IADT Mailing Address : Office of Design : Iowa Department of Transportation : 800 Lincoln Way : Ames, IA 50010 Primary Contact Contact Name : Geoff Tinker Telephone (primary) : 515-239-1981 Telephone (secondary) : 515-290-2831 Fax : E-mail : geoffry.tinker@dot.iowa.gov Secondary Contact Contact Name : Dan Messerich Telephone (primary) : 515-239-1894 Telephone (secondary) : Fax : E-mail : daniel.messerich@dot.iowa.gov Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : Iowa Department of Transportation Preferred Abbreviation : IADT Mailing Address : Office of Design : Iowa Department of Transportation : 800 Lincoln Way : Ames, IA 50010 Primary Contact Contact Name : Geoff Tinker Telephone (primary) : 515-239-1981 Telephone (secondary) : 515-290-2831 Fax : E-mail : geoffry.tinker@iowadot.us Secondary Contact Contact Name : Dan Messerich Telephone (primary) : 515-239-1894 Telephone (secondary) : Fax : E-mail : daniel.messerich@iowadot.us 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 Horizon Mask : (Y or URL) Monument Description : Y Site Pictures : (Y or URL) Additional Information : (multiple lines) Antenna Graphics with Dimensions https://files.igs.org/pub/station/general/antenna.gra