DHLG Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : Paul F. Jamason Date Prepared : 12-FEB-1998 Report Type : UPDATE Prepared Using : 1. Site Identification of the GPS Monument Site Name : Durmid Hill PGGA Four Character ID : DHLG Monument Inscription : None IERS DOMES Number : 49904M001 CDP Number : Not yet available Date Installed : 24-APR-1996 02:50 UT 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) Notes : (multiple lines) Additional Information : Monument type - Driven Rod Quincunx : Stainless steel 3/4" rods driven to refusal (at : ~24'depth) and welded together approximately : 1.5 m above ground surface. The station mark is : a hole drilled into the side of the vertical : stainless steel rod, between the rod weld point : and the antenna adaptor. : Station is colocated with the south end vault : of the Durmid Hill Laser strainmeter operated : by Frank Wyatt and Duncan Agnew, IGPP, SIO. : Information on the Quincunx monument and the : Durmid Hill strainmeter are located on the : web at http://www-pfo.ucsd.edu 2. Site Location Information City or Town : Durmid Hill State or Province : California Country : USA Tectonic Plate : North American/Pacific Plate Boundary Approximate Position X coordinate (m) : -2319099.1297 Y coordinate (m) : -4799846.5829 Z coordinate (m) : 3490090.4694 Latitude (deg) : 33.3898 Longitude (deg) : -115.7880 Elevation (m) : -83.0215 Additional Information : Reference System ITRF96_98 (WGS-84) 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH LP Z-XII 700845-10D Serial Number : LP 01378 Firmware Version : 1E86-1D01 Date Installed : 24-APR-1996 02:50 UT Date Removed : 23-JAN-1997 05:00 UT Additional Information : (multiple lines) 3.2 Receiver Type : ASHTECH LP Z-XII 700845-10D Serial Number : LP 01389 Firmware Version : 1E95-1D01 Date Installed : 23-JAN-1997 05:10 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : Firmware upgrade, receiver swap 3.x Receiver Type : Serial Number : Firmware Version : Date Installed : (dd-MMM-yyyy hh:mm UT) Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 4. GPS Antenna Information 4.1 Antenna Type : ASHTECH Choke Ring 700936 Serial Number : 12656 Antenna Height (m) : 0.1214 Antenna Reference Point : BPA Degree Offset from North : Antenna Alligned to True N Antenna Radome Type : ASHTECH Choke Ring Radome Date Installed : 24-APR-1996 02:50 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : Antenna height is measured from the center : of the hole (referred to above) to the BPA. 4.x Antenna Type : Serial Number : Antenna Height (m) : (m) Antenna Reference Point : (ARP/BCR/BPA) Degree Offset from North : Antenna Radome Type : Date Installed : (dd-MMM-yyyy hh:mm UT) Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 5. Local Site Ties 5.x Monument Name : Site Ref CDP Number : (XXXX) Site Ref Domes Number : (XXXXXXXXX) Differential Components from GPS Mark to Site Reference (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Date Measured : (dd-MMM-yyyy hh:mm UT) Additional Information : (multiple lines) 6. Frequency Standard 6.1 Standard Type : INTERNAL Frequency : Effective Dates : 24-APR-1996 - dd-MMM-yyyy Notes : (multiple lines) 6.x Standard Type : (H-MASER/CESIUM/QUARTZ/INTERNAL/RUBIDIUM) Frequency : Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 7. Collocation Information 7.x Instrumentation Type : (DORIS/GLONASS/PRARE/SLR/VLBI) Status : (PERMANENT/MOBILE) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1 Humidity Sensor Model : Manufacturer : Data Frequency : Accuracy (% rel h) : (% rel h) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.2 Pressure Sensor Model : Manufacturer : Data Frequency : Accuracy (mbar) : (mbar) Height Diff to GPS (m) : (m) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.3 Temperature Sensor Model : Manufacturer : Data Frequency : Accuracy (deg C) : (deg C) Effective Dates : (dd-MMM-yyyy - dd-MMM-yyyy) Notes : (multiple lines) 8.4 Water Vapor Radiometer : 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 : (multiple lines) 9. On-Site, Point of Contact Agency Information Agency : SOPAC, Scripps Institution of Oceanography Mailing Address : IGPP, MS 0225 : UC, San Diego : 9500 Gilman Drive : La Jolla, CA 92093 Primary Contact Contact Name : Jeff Dean Telephone (primary) : 619-534-8487 Telephone (secondary) : 619-534-7692 Fax : 619-534-9873 E-mail : jdean@pgga.ucsd.edu Secondary Contact Contact Name : Frank Wyatt/Duncan Agnew Telephone (primary) : 619-534-2411 Telephone (secondary) : 619-534-0229 Fax : 619-534-9873 E-mail : wyatt@ramsden.ucsd.edu Additional Information : (multiple lines) 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 : Hardcopy on File Site Map : (N) Site Diagram : (N) Horizon Mask : (N) Monument Description : (N) Site Pictures : (N) Additional Information : (multiple lines) Antenna Graphics with Dimensions ASHTECH w/DORNE MARGOLIN Choke Ring (& 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