DHLG 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) : Paul Jamason Date Prepared : 2002-08-23 Report Type : DYNAMIC If Update: Previous Site Log : dhlg_20000409.log Modified/Added Sections : 1,11,13 1. Site Identification of the GNSS Monument Site Name : Durmid Hill Four Character ID : DHLG Monument Inscription : IERS DOMES Number : 49904M001 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 : vertical rod divot Date Installed : 1996-04-24T02:50Z Geologic Characteristic : SEDIMENTARY ROCK Bedrock Type : SANDSTONE/MUDSTONE 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 : stainless steel 3/4 in. rods driven to refusal : (24 ft. depth), welded together ~1.5m above : surface : Wyatt-design adaptor, looks like a SCIGN D3 : prototype 2. Site Location Information City or Town : Durmid Hill State or Province : California Country : USA Tectonic Plate : North America Approximate Position (ITRF) X coordinate (m) : -2319099.15 Y coordinate (m) : -4799846.55 Z coordinate (m) : 3490090.44 Latitude (N is +) : +332324.00 Longitude (E is +) : -1154724.00 Elevation (m,ellips.) : -83.05 Additional Information : Imperial 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 : LP01378 Firmware Version : 1E86-1D01 Elevation Cutoff Setting: (deg) Date Installed : 1996-04-24T02:50Z Date Removed : 1997-01-23T05:10Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Initial measurements. 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01389 Firmware Version : 1E95-1D01 Elevation Cutoff Setting: (deg) Date Installed : 1997-01-23T05:10Z Date Removed : 1998-03-12T22:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade, receiver swap 3.3 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01389 Firmware Version : 1F50 Elevation Cutoff Setting: (deg) Date Installed : 1998-03-12T22:00Z Date Removed : 1998-07-02T22:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware upgrade for MET3 met pack install 3.4 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP03044 Firmware Version : 1F50 Elevation Cutoff Setting: (deg) Date Installed : 1998-07-02T22:00Z Date Removed : 1999-07-14T20:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : SCIGN receiver swap, battery backup upgrade. : ASHTECH LP Z-XII 700845-10F 3.5 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02790 Firmware Version : CC00 Elevation Cutoff Setting: 10 Date Installed : 1999-07-14T20:00Z Date Removed : 1999-12-23T23:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver swap for GPS week rollover-compliance. 3.6 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP02767 Firmware Version : CC00 Elevation Cutoff Setting: 10 Date Installed : 1999-12-23T23:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver swap due to comm. : problems 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. GPS Antenna Information 4.1 Antenna Type : ASH700936D_M Serial Number : CR12656 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1214 Marker->ARP North Ecc(m): (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : 0 Antenna Radome Type : SNOW Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1996-04-24T02:50Z Date Removed : 2000-04-06T00:00Z Additional Information : Antenna height is measured from the center of : the hole (referred to above) to the BPA. : ASHTECH Choke Ring 700936 4.2 Antenna Type : ASH701945B_M Serial Number : CR519991761 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1224 Marker->ARP North Ecc(m): (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : 0 Antenna Radome Type : SCIS Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2000-04-06T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : 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 : 1996-04-24/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 : MET3 Manufacturer : Paroscientific Serial Number : 69818 Data Sampling Interval : 600 sec. Accuracy (% rel h) : 2. Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration Date : (CCYY-MM-DD) Effective Dates : 1998-03-12/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 : MET3 Manufacturer : Paroscientific Serial Number : 69818 Data Sampling Interval : 600 sec. Accuracy : .5 Height Diff to Ant : (m) Calibration Date : (CCYY-MM-DD) Effective Dates : 1998-03-12/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 : MET3 Manufacturer : Paroscientific Serial Number : 69818 Data Sampling Interval : 600 sec. Accuracy : .5 Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration Date : (CCYY-MM-DD) Effective Dates : 1998-03-12/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 : Scripps Orbit and Permanent Array Center Preferred Abbreviation : (A10) Mailing Address : Institute of Geophysics and Planetary Physics, : Scripps Institution of Oceanography, MC 0225, : University of California San Diego, 9500 : Gilman Dr., La Jolla CA 92093-0225 Primary Contact Contact Name : Paul Jamason Telephone (primary) : 858-822-4472 Telephone (secondary) : 858-663-3508 Fax : 858-534-9873 E-mail : pjamason@ucsd.edu Secondary 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 Additional Information : : (Secondary) 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)