BEMT Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Susan Jeffries Date Prepared : 2022-09-28 Report Type : UPDATE If Update: Previous Site Log : bemt_20210203.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : BEMT_SCGN_CS2001 Four Character ID : BEMT Monument Inscription : IERS DOMES Number : 49638M001 CDP Number : Monument Description : Wyatt/Agnew drilled-braced Height of the Monument : (m) Monument Foundation : (STEEL RODS/CONCRETE BLOCK/ROOF/etc) Foundation Depth : (m) Marker Description : Drilled hole in top of center support bolt of : antenna adaptor Date Installed : 2001-11-15 Geologic Characteristic : Bedrock Bedrock Type : Metamorphic Bedrock Condition : Fresh, fractured Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : SCIGN - Southern California Integrated GPS : Network 2. Site Location Information City or Town : Twentynine Palms State or Province : California Country : USA Tectonic Plate : North America Approximate Position (ITRF) X coordinate (m) : -2320746.0977 Y coordinate (m) : -4758616.1686 Z coordinate (m) : 3547263.8149 Latitude (N is +) : +340001.92 Longitude (E is +) : -1155953.48 Elevation (m,ellips.) : 1373.6489 Additional Information : Riverside County. Reference frame used is : (ITRF2000). Coordinate system used is (WGS84). 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02636 Firmware Version : CD00 Elevation Cutoff Setting : 10 deg Date Installed : 2001-11-15T00:00Z Date Removed : 2001-12-18T17:16Z Temperature Stabiliz. : Additional Information : Initial measurements. 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP020004506 Firmware Version : CD00 Elevation Cutoff Setting : 10 deg Date Installed : 2001-12-18T17:16Z Date Removed : 2006-01-06T02:45Z Temperature Stabiliz. : Additional Information : Receiver swap. 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4516248605 Firmware Version : 1.1-2 Elevation Cutoff Setting : 0 deg Date Installed : 2006-01-06T02:45Z Date Removed : 2010-07-09T16:09Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4516248605 Firmware Version : 1.3-0 Elevation Cutoff Setting : 0 deg Date Installed : 2010-07-09T16:09Z Date Removed : 2018-08-15T11:31Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4516248605 Firmware Version : 1.3-2 Elevation Cutoff Setting : deg Date Installed : 2018-08-15T11:31Z Date Removed : 2020-04-01T19:31Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.6 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3061497 Firmware Version : 5.3.2 Elevation Cutoff Setting : deg Date Installed : 2020-04-01T19:31Z Date Removed : 2020-08-18T00:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.7 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3061814 Firmware Version : 5.3.2 Elevation Cutoff Setting : deg Date Installed : 2020-08-18T00:01Z Date Removed : 2021-01-28T17:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.8 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3061814 Firmware Version : 5.4.0 Elevation Cutoff Setting : deg Date Installed : 2021-01-28T17:01Z Date Removed : 2021-09-03T03:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.9 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3061814 Firmware Version : 5.4.0-patch1 Elevation Cutoff Setting : deg Date Installed : 2021-09-03T03:01Z Date Removed : 2022-09-27T15:01Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.10 Receiver Type : SEPT POLARX5 Satellite System : GPS Serial Number : 3061814 Firmware Version : 5.5.0 Elevation Cutoff Setting : deg Date Installed : 2022-09-27T15:01Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : none 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 : ASH701945B_M SCIT Serial Number : CR519991823 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCIT Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2001-11-15T00:00Z Date Removed : 2020-04-01T19:33Z Additional Information : 4.2 Antenna Type : TRM59800.99 SCIT Serial Number : 0220367044 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0083 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCIT Radome Serial Number : N/A Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2020-04-01T19:33Z 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 : Input Frequency : Effective Dates : (CCYY-MM-DD/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 : NONE Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DDThh:mmZ) 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.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 : UNAVCO Preferred Abbreviation : UNAVCO Mailing Address : : : : Boulder CO USA 80301 Primary Contact Contact Name : Karl Feaux Telephone (primary) : 303-381-7556 Telephone (secondary) : Fax : 303-381-7552 E-mail : feaux@unavco.org Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 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 : (multiple lines) 13. More Information Primary Data Center : UNAVCO Boulder Facility Archive Secondary Data Center : URL for More Information : https://www.unavco.org 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 TRM159800.00 TRM159900.00 TRM29659.00 TRM59800.00 TRM59800.00C TRM59800.80 TRM59800.99 TRM59900.00 ----- / \ | | +-------------------------------------------------+ <-- 0.1020 TCR | | | | | | | | +-+-------------------------------------------------+-+ <-- 0.0381 +-------------------+-------------+-------------------+ <-- 0.0350 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP RXC=NRP <-- 0.3810 -->