SCIP Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : Frank Wyatt, Yehuda Bock, Paul F. Jamason Date Prepared : 18-FEB-1998 Report Type : UPDATE Prepared Using : 1. Site Identification of the GPS Monument Site Name : San Clemente Island Peak Four Character ID : SCIP Monument Inscription : IERS DOMES Number : 49915M001 CDP Number : Unknown Date Installed : 23-SEP-1997 hh:mm UT Geologic Characteristic : CONGLOMERATE Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/10-50 cm/50-200 cm/over 200 cm) Notes : (multiple lines) Additional Information : Southern California Integrated GPS Network : (SCIGN)/ : Permanent GPS Geodetic Array (PGGA) : Shallow rod/braced antenna mount. Anchoring : legs extend to depths of 4.75 to 5.25 ft. : from the surface for the angled legs, and : 6.0 ft. for the center vertical leg. They : are isolated from the surface material over : their first 2.0-2.5 ft. : Verical datum is the raised nipple on the lower : part of the antenna adaptor. Fixed antenna : height is 0.0083 m. : A secondary measurement, the adaptor/divot : distance, taken from the bottom of the lower : adaptor plate to the center of a divot : drill-mark on the north-facing tripod leg, : is measured as 0.1050 m. 2. Site Location Information City or Town : San Clemente Island State or Province : California Country : USA Tectonic Plate : Pacific-North America plate boundary Approximate Position X coordinate (m) : -2556579.0319 Y coordinate (m) : -4710984.3680 Z coordinate (m) : 3446220.4000 Latitude (deg) : 32.9144 Longitude (deg) : -118.4880 Elevation (m) : 416.2096 Additional information : Located on southern portion of island; : Reference System ITRF96_98 (WGS-84) 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH LP Z-XII 700845-10D Serial Number : LP03079 Firmware Version : 1F50-1D02 Date Installed : 21-JAN-1998 Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : Site is now operational 4. GPS Antenna Information 4.1 Antenna Type : DORNE MARGOLIN B (ASHTECH 700936 Rev D) Serial Number : 12659 Antenna Height (m) : 0.0083 Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : Ashtech Conical (Opaque, White) Date Installed : 23-SEP-1997 hh:mm UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : New Installation : Antenna height is fixed, and measured from the : raised nipple on the lower part of the antenna : adaptor (peak of center support screw) to the : BPA. 5. Local Site Ties 5.1 Monument Name : None Site Ref CDP Number : Site Ref Domes Number : Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : Date Measured : Additional Information : 6. Frequency Standard 6.1 Standard Type : INTERNAL Frequency : Effective Dates : ALL Notes : 6.x Standard Type : NONE Frequency : Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : 7. Collocation Information 7.x Instrumentation Type : NONE Status : Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : 8. Meteorological Instrumentation 8.1 Humidity Sensor Model : MET3 Manufacturer : Paroscientific Data Frequency : 600 seconds Accuracy (% rel h) : +/- 2% @ 25C Effective Dates : 23-SEP-1997 - present Notes : SN 67620 currently not working 8.2 Pressure Sensor Model : MET3 Manufacturer : Paroscientific Data Frequency : 600 seconds Accuracy (mbar) : NA Height Diff to GPS (m) : ~ -1.0 Effective Dates : 23-SEP-1997 - present Notes : SN 67620 currently not working 8.3 Temperature Sensor Model : MET3 Manufacturer : Paroscientific Data Frequency : 600 seconds Accuracy (deg C) : <= 0.5 Effective Dates : 23-SEP-1997 - present Notes : SN 67620 currently not working 8.4 Water Vapor Radiometer : None Manufacturer : Distance to GPS (m) : (m) Elev Diff to GPS (m) : (m) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.5 Other Instrumentation : 9. On-Site, Point of Contact Agency Information Agency : SOPAC,Scripps Institution of Oceanography Mailing Address : IGPP, MS 0225 : 9500 Gilman Drive : La Jolla, CA 92093-0225 Primary Contact Contact Name : Paul Jamason : Jeff Dean Telephone (primary) : 619-534-7692 Telephone (secondary) : 619-534-4212 Fax : 619-534-9873 E-mail : jamason@pgga.ucsd.edu : jdean@pgga.ucsd.edu Secondary Contact Contact Name : Frank Wyatt : Yehuda Bock Telephone (primary) : 619-534-2411; 5292 Telephone (secondary) : Fax : 619-534-8090; 9873 E-mail : fwyatt@ucsd.edu : ybock@ucsd.edu Additional Information : 10. Responsible Agency (if different from 9.) Agency : (multiple lines) 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) 11. More Information URL for More Information : http://lox.ucsd.edu Hardcopy on File Site Map : (Y) Site Diagram : (Y) Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y) Additional Information : (multiple lines) Antenna Graphics with Dimensions ASHTECH Choke Ring (& White Conical Radome) ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 BCR +-------------------+-------------+--------------------+ <-- 0.035 BGP | | =| | +------x------+ <-- 0.000 m ARP=BPA <-- 0.381 --> NOTE: Dimensions and Offsets Presumed to be same as for TURBOROGUE DM-T (tests pending) ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering TGP: Top of Ground Plane BGP: Bottom of Ground Plane TPA: Top of Preamplifier BPA: Bottom of Preamplifier PED: Bottom of Pedestal (DM Modified for ASHTECH)