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) : Michael Scharber Date Prepared : 2002-08-21 Report Type : DYNAMIC If Update: Previous Site Log : long_20000730.log Modified/Added Sections : 1,3.9,3.10,11,13 1. Site Identification of the GNSS Monument Site Name : Longdon Yard Four Character ID : LONG Monument Inscription : IERS DOMES Number : 40485M001 CDP Number : (A4) 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 : 1994-11-17T00:00Z 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 : North America Pacific Approximate Position (ITRF) X coordinate (m) : -2482077.46 Y coordinate (m) : -4667439.19 Z coordinate (m) : 3556771.61 Latitude (N is +) : +340636.00 Longitude (E is +) : -1180000.00 Elevation (m,ellips.) : 74.29 Additional Information : Located at Los Angeles County Facility : Los Angeles County. : Reference frame used is (ITRF97). : 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: (deg) Date Installed : 1994-11-16T00:00Z Date Removed : 1995-04-04T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1995-04-04T00:00Z Date Removed : 1995-04-06T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1995-04-06T00:00Z Date Removed : 1995-05-19T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1995-05-19T00:00Z Date Removed : 1996-09-05T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1996-09-05T00:00Z Date Removed : 1997-03-06T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1997-03-06T00:00Z Date Removed : 1997-03-31T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1997-03-31T00:00Z Date Removed : 1997-07-29T00:31Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1997-07-29T00:31Z Date Removed : 1999-06-25T00:00Z Temperature Stabiliz. : (none or tolerance in degrees C) 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: (deg) Date Installed : 1999-06-25T00:00Z Date Removed : 2000-07-20T09:49Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : CC00 firmware upgrade from 1F50 firmware. 3.10 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03063 Firmware Version : CC00 Elevation Cutoff Setting: 10 Date Installed : 2000-07-20T09:49Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS/GLONASS/GPS+GLONASS) Serial Number : (A5) 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 Serial Number : 10329 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1475 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 : 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 Serial Number : 10858 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1490 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 : 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 Serial Number : 11476 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1480 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 : 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 Serial Number : 11476 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1480 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 : SCPL Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1997-01-02T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) 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.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 5.1 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) 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 : 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 : (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) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) 8.5.x Other Instrumentation : (multiple lines) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.1 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) 9.1.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) 9.2.1 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/BUILDINGS/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 10.1 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 : United States Geological Survey Preferred Abbreviation : (A10) Mailing Address : Pasadena Field Office, 525 S. Wilson Ave., : Pasadena CA 91106 Primary Contact Contact Name : Keith Stark Telephone (primary) : 626-583-6729 Telephone (secondary) : 818-542-5930 Fax : 626-583-7827 E-mail : stark@gps.caltech.edu Secondary Contact Contact Name : Paul Jamason Telephone (primary) : 858-822-4472 Telephone (secondary) : 858-663-3508 Fax : 858-534-9873 E-mail : pjamason@ucsd.edu Additional Information : (Primary) SCIGN Network Coordinator 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 : Scripps Orbit and Permanent Array Center Secondary Data Center : Crustal Dynamics Data Information System URL For More Information: http://www.scign.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 (insert text graphic from antenna.gra)