BLYT00USA Site Information Form (site log) International GNSS Service See Instructions at: https://ftp.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : David Maggert Date Prepared : 2021-08-25 Report Type : UPDATE If Update: Previous Site Log : blyt_20190417.log Modified/Added Sections : 2, 11 1. Site Identification of the GNSS Monument Site Name : Blythe Four Character ID : BLYT Monument Inscription : Riverside County Surveyor Blythe Airbase IERS DOMES Number : 40479M001 CDP Number : Monument Description : Wyatt/Agnew drilled-braced Height of the Monument : Monument Foundation : Foundation Depth : Marker Description : Date Installed : 1994-01-13T00:00Z Geologic Characteristic : SAND Bedrock Type : Bedrock Condition : Fracture Spacing : unknown Fault zones nearby : Distance/activity : Additional Information : three angled, 9/16 in. stainless steel driven : rods driven to 30 ft., center rod driven to 40 : ft., 3 in. PVC pipe filled with insulation to : isolate upper 4 ft. of rods from surrounding : soil, concrete pad at surface, 1 in. diameter : by 3 ft. length stainless steel rod attached : to top of center rod at 1.5 ft. depth : baseplate is 3 in. diameter washer, 1/2 in. : thick, nut is standard 5/8 in., 5/8 in. thick, : rod is 1 in. diameter 316 seris stainless steel 2. Site Location Information City or Town : Blythe State or Province : California Country : United States of America (the) Tectonic Plate : NORTH AMERICAN Approximate Position (ITRF) X coordinate (m) : -2223206.7200 Y coordinate (m) : -4830299.8000 Z coordinate (m) : 3510587.5900 Latitude (N is +) : +333637.49 Longitude (E is +) : -1144253.46 Elevation (m,ellips.) : 85.9 Additional Information : SCIGN - Southern California Integrated GPS : Network : Riverside County. 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03435 Firmware Version : NAV 1C00, CHN 1C00 Elevation Cutoff Setting : Date Installed : 1994-01-13T00:00Z Date Removed : 1994-01-25T00:00Z Temperature Stabiliz. : Additional Information : First measurements. 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03435 Firmware Version : NAV 1C01, CHN 1C00 Elevation Cutoff Setting : Date Installed : 1994-01-25T00:00Z Date Removed : 1994-07-11T00:00Z Temperature Stabiliz. : Additional Information : Firmware upgrade and sampling interval : increased to 30 seconds. 3.3 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03435 Firmware Version : NAV 1D00, CHN 1C01 Elevation Cutoff Setting : Date Installed : 1994-07-11T00:00Z Date Removed : 1995-08-03T00:00Z Temperature Stabiliz. : Additional Information : Firmware upgrade and sampling interval : increased to 30 seconds. 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03435 Firmware Version : NAV 1E00, CHN 1C50 Elevation Cutoff Setting : Date Installed : 1995-08-03T00:00Z Date Removed : 1996-12-18T21:45Z Temperature Stabiliz. : Additional Information : Firmware upgrade and sampling interval : increased to 30 seconds. 3.5 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 01894 Firmware Version : NAV 1E95, CHN 1D01 Elevation Cutoff Setting : Date Installed : 1996-12-18T21:45Z Date Removed : 1997-01-07T19:29Z Temperature Stabiliz. : Additional Information : Receiver Swap, Firmware Upgrade Original : receiver refused upgrade 3.6 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 03435 Firmware Version : NAV 1E95, CHN 1D01 Elevation Cutoff Setting : Date Installed : 1997-01-07T19:29Z Date Removed : 1998-05-14T00:00Z Temperature Stabiliz. : Additional Information : Firmware Upgrade Original receiver replaced 3.7 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02812 Firmware Version : 1F50 Elevation Cutoff Setting : Date Installed : 1998-05-14T00:00Z Date Removed : 1999-07-14T18:00Z Temperature Stabiliz. : Additional Information : SCIGN receiver Model 700845-10(E) 3.8 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02895 Firmware Version : CC00 Elevation Cutoff Setting : 10 deg Date Installed : 1999-07-14T18:00Z Date Removed : 2000-10-25T20:48Z Temperature Stabiliz. : Additional Information : Receiver swap for GPS week rollover-compliance. 3.9 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02908 Firmware Version : CC00 Elevation Cutoff Setting : 10 deg Date Installed : 2000-10-25T20:48Z Date Removed : 2005-11-10T00:00Z Temperature Stabiliz. : Additional Information : Replaced damaged receiver 3.10 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02772 Firmware Version : CD00 Elevation Cutoff Setting : 00 deg Date Installed : 2005-11-10T00:00Z Date Removed : 2009-08-19T21:01Z Temperature Stabiliz. : Additional Information : 3.11 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4808145635 Firmware Version : 1.2-5 Elevation Cutoff Setting : 0 deg Date Installed : 2009-08-19T21:01Z Date Removed : 2011-11-08T22:18Z Temperature Stabiliz. : Additional Information : 3.12 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4927175272 Firmware Version : 1.2-5 Elevation Cutoff Setting : 0 deg Date Installed : 2011-11-08T22:18Z Date Removed : 2019-03-20T22:38Z Temperature Stabiliz. : Additional Information : 3.13 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4927175272 Firmware Version : 1.3-2 Elevation Cutoff Setting : 0 deg Date Installed : 2019-03-20T23:10Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : Additional Information : 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 : ASH700228D SNOW Serial Number : 700228D2941 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0360 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : SNOW Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 1994-01-13T00:00Z Date Removed : 1995-08-03T00:00Z Additional Information : 4.2 Antenna Type : ASH700936B_M ENCL Serial Number : CR11933 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0347 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : Antenna Radome Type : ENCL Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 1995-08-03T00:00Z Date Removed : 2000-03-30T00:20Z Additional Information : Dome removed - site enclosure dome in use 4.3 Antenna Type : ASH701945B_M ENCL Serial Number : CR519991710 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0332 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : ENCL Radome Serial Number : Antenna Cable Type : Antenna Cable Length : Date Installed : 2000-03-30T00:20Z 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 : Effective Dates : 1994-01-13/CCYY-MM-DD Notes : 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.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.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.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.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.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.x Other Instrumentation : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (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.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : USGS Preferred Abbreviation : USGS Mailing Address : 525 South Wilson Avenue : Pasadena, CA 91107 USA Primary Contact Contact Name : SCGN Operators Telephone (primary) : Telephone (secondary) : Fax : E-mail : scgn-operators@usgs.gov Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : Preferred Abbreviation : Mailing Address : Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 13. More Information Primary Data Center : CDDIS Secondary Data Center : IGN URL for More Information : http://www.unavco.org Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Additional Information : Antenna Graphics with Dimensions (insert text graphic from antenna.gra)