LONG Site Information Form (site log) International GPS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Susan Jeffries Date Prepared : 2019-03-27 Report Type : UPDATE If Update: Previous Site Log : long_20151118.log Modified/Added Sections : (n.n,n.n,...) 1. Site Identification of the GNSS Monument Site Name : Longdon Yard Four Character ID : LONG Monument Inscription : IERS DOMES Number : 40485M001 CDP Number : Monument Description : Wyatt/Agnew driven-braced Height of the Monument : (m) Monument Foundation : (STEEL RODS/CONCRETE BLOCK/ROOF/etc) Foundation Depth : (m) Marker Description : top of a filed notch in vertical 3/4" rod Date Installed : 1994-11-17 Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) 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. Driven-rod monument of stainless 3/4" : steel that forms a braced tripod (rods driven to : approx. 30+ foot depth). Antenna mounts on a : removable brass adaptor. Rods were driven with a : Whacker drill, but 'refusal' was not attained. : Soil here is coarse alluvium in the uppermost : few feet, but fine unconsolidated allumvium : below that. An approx. 4' dia. metal conduit was : emplaced around the uppermost 5' of the monument : (below ground) to isolate from soil motion. : Antenna and conduit are covered by a large : hemispherical polycarbonate dome. 2. Site Location Information City or Town : Irwindale State or Province : California Country : USA Tectonic Plate : Pacific Approximate Position (ITRF) X coordinate (m) : -2482077.7802 Y coordinate (m) : -4667438.8897 Z coordinate (m) : 3556771.7302 Latitude (N is +) : +340642.84 Longitude (E is +) : -1180012.28 Elevation (m,ellips.) : 74.2606 Additional Information : Located at Los Angeles County Facility Los : Angeles 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 : 03373 Firmware Version : NAV 1D00 CHN 1C01 Elevation Cutoff Setting : 0 deg Date Installed : 1994-11-16T00:00Z Date Removed : 1995-04-04T00:00Z Temperature Stabiliz. : none Additional Information : First measurements; Loaner #3 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04356 Firmware Version : NAV 1E24 CHN 1C70 Elevation Cutoff Setting : 0 deg Date Installed : 1995-04-04T00:00Z Date Removed : 1995-04-06T00:00Z Temperature Stabiliz. : none Additional Information : exchanged Loaner #3 for USGS unit (1 MB RAM); : (USGS Property #G-615686) 3.3 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04377 Firmware Version : NAV 1E24 CHN 1C70 Elevation Cutoff Setting : 0 deg Date Installed : 1995-04-06T00:00Z Date Removed : 1995-04-13T00:00Z Temperature Stabiliz. : none Additional Information : exchanged USGS units (RAM upgrade); Sometime : between 06-APR-1995 and 19-MAY-1995 the receiver : may have been exchanged but no field log : written? (USGS Property #G-615685) 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04366 Firmware Version : NAV 1E24 CHN 1C70 Elevation Cutoff Setting : 0 deg Date Installed : 1995-04-13T00:00Z Date Removed : 1996-09-05T00:00Z Temperature Stabiliz. : none Additional Information : may have changed receiver - inconsistent S/N's : between this day's log sheet and previous one; : (USGS Property #G-615684) 3.5 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04366 Firmware Version : NAV 1E95 1D01 Elevation Cutoff Setting : 0 deg Date Installed : 1996-09-05T00:00Z Date Removed : 1997-03-06T00:00Z Temperature Stabiliz. : none Additional Information : firmware upgrade 3.6 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 350 Firmware Version : NAV 1E95 1D01 Elevation Cutoff Setting : 0 deg Date Installed : 1997-03-06T00:00Z Date Removed : 1997-03-31T00:00Z Temperature Stabiliz. : none Additional Information : Rx not collecting data nor communicating. Rx : swapped with loaner rx; loaner 3.7 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04366 Firmware Version : NAV 1E95 1D01 Elevation Cutoff Setting : 0 deg Date Installed : 1997-03-31T00:00Z Date Removed : 1997-07-29T00:31Z Temperature Stabiliz. : none Additional Information : Repaired rx returned from Ashtech; (USGS : Property #G-615684) 3.8 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : 04366 Firmware Version : NAV 1F50 1D02 Elevation Cutoff Setting : 0 deg Date Installed : 1997-07-29T00:31Z Date Removed : 1999-06-25T00:00Z Temperature Stabiliz. : none Additional Information : Repaired rx returned from Ashtech; (USGS : Property #G-615684) 3.9 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03063 Firmware Version : CC00 Elevation Cutoff Setting : 0 deg Date Installed : 1999-06-25T00:00Z Date Removed : 2010-04-15T22:20Z Temperature Stabiliz. : none Additional Information : CC00 firmware upgrade from 1F50 firmware. 3.10 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02913 Firmware Version : CC00 Elevation Cutoff Setting : 0 deg Date Installed : 2010-04-15T22:22Z Date Removed : 2011-04-29T22:50Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.11 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01119 Firmware Version : 3.5 May 06,2010 Elevation Cutoff Setting : 5 deg Date Installed : 2011-04-29T22:56Z Date Removed : 2011-10-12T23:59Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.12 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01119 Firmware Version : 3.5 Aug,24,2011 p3b2 Elevation Cutoff Setting : 5 deg Date Installed : 2011-10-13T00:00Z Date Removed : 2012-05-10T23:59Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.13 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01119 Firmware Version : 3.6 Feb,28,2012 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2012-05-11T00:00Z Date Removed : 2013-05-29T20:30Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.14 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01119 Firmware Version : 4.0 Dec,21,2012 p1 Elevation Cutoff Setting : 5 deg Date Installed : 2013-05-29T21:03Z Date Removed : 2015-11-18T18:43Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.15 Receiver Type : TPS NET-G3A Satellite System : GPS+GLO Serial Number : 618-01119 Firmware Version : 4.5 Dec,29,2014 Elevation Cutoff Setting : 5 deg Date Installed : 2015-11-18T18:48Z Date Removed : 2017-02-14T20:08Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.16 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01119 Firmware Version : 4.7 Oct,18,2016 p2 Elevation Cutoff Setting : 5 deg Date Installed : 2017-02-14T20:24Z Date Removed : 2019-03-26T22:49Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.17 Receiver Type : TPS NET-G3A Satellite System : GPS Serial Number : 618-01119 Firmware Version : 4.7 Feb,21,2019 p10 Elevation Cutoff Setting : 5 deg Date Installed : 2019-03-26T22:58Z 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 : ASH700718B NONE Serial Number : 10329 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1475 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1994-11-16T00:00Z Date Removed : 1995-04-04T00:00Z Additional Information : vertical datum mark is filed notch on 3/4" : vertical rod. Field measurement (16.35 cm) was : to wide part of antenna base and a correction of : 1.6 cm was subtracted to get narrow part BPA 4.2 Antenna Type : ASH700718B NONE Serial Number : 10858 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1490 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1995-04-04T00:00Z Date Removed : 1995-05-19T00:00Z Additional Information : Field measurements to both the narrow and wide : part were made and check OK 4.3 Antenna Type : ASH700936A_M NONE Serial Number : 11476 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1480 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1995-05-19T00:00Z Date Removed : 1997-01-02T00:00Z Additional Information : same filed notch used as vertical datum approx. : 19-MAY-1995. LGP antenna replaced with DM type 4.4 Antenna Type : ASH700936A_M SCPL Serial Number : 11476 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1480 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCPL Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1997-01-02T00:00Z Date Removed : 2012-11-02T19:04Z Additional Information : Antenna was previously aligned to N20E and had a : missile cone cover along with a plexiglass dome. : ANTENNA NOW ALIGNED TO N +/- 1 DEGREE TOOK : MISSILE CONE COVER OFF as of 02-JAN-97. 4.5 Antenna Type : TPSCR.G3 SCPL Serial Number : 383-1760 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1480 Marker->ARP North Ecc(m) : 0 Marker->ARP East Ecc(m) : 0 Alignment from True N : deg Antenna Radome Type : SCPL Radome Serial Number : none Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2012-11-02T19:11Z 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 : Effective Dates : 1994-11-17/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 : US Geological Survey Preferred Abbreviation : USGS Mailing Address : US Geological Survey 525 S. Wilson Ave. : Pasadena CA USA 91106-3212 Primary Contact Contact Name : Kenneth W. Hudnut Telephone (primary) : 626-583-7232 Telephone (secondary) : Fax : 626-583-7827 E-mail : hudnut@usgs.gov Secondary Contact Contact Name : Daniel Determan Telephone (primary) : 626-583-6729 Telephone (secondary) : Fax : E-mail : ddeterman@usgs.gov 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 : http://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 TPSCR.G3 +-------+ / \ | | +-----------------+-------------+-----------------+ <-- 0.1015 TCR | | | | | | | | +-+-------------------------------------------------+-+ +-------------------+-------------+-------------------+ <-- 0.0345 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.2380 --> <-- 0.3800 -->