DHLG Site Information Form Southern California Integrated GPS Network 0. Form Prepared by (full name) : Paul F. Jamason Date Prepared : 22-DEC-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 : SCIGN - Southern California Integrated GPS : Network 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) : -2319099.12 Y coordinate (m) : -4799846.56 Z coordinate (m) : 3490090.45 Latitude (deg) : 33.3898060 Longitude (deg) : -115.7880263 Elevation (m) : -83.06 Additional Information : Reference System ITRF96_98 (WGS-84) : Located on Northeast side of Salton Sea, : Imperial County 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 : 12-MAR-1998 22:00 UT Additional Information : Firmware upgrade, receiver swap 3.3 Receiver Type : ASHTECH LP Z-XII 700845-10D Serial Number : LP 01389 Firmware Version : 1F50 Date Installed : 12-MAR-1998 22:00 UT Date Removed : 02-JUL-1998 22:00 UT Additional Information : Firmware upgrade for MET3 met pack : install 3.4 Receiver Type : ASHTECH Z-XII3 Serial Number : LP 03044 Firmware Version : 1F50 Date Installed : 02-JUL-1998 22:00 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : SCIGN receiver swap; battery backup : upgrade. : ASHTECH LP Z-XII 700845-10F 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 : ASH DM 700936D MILL 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. : ASHTECH Choke Ring 700936 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 : MET3 Manufacturer : Paroscientific Data Frequency : 600 seconds Accuracy (% rel h) : +/- 2% @ 25C Effective Dates : 12-MAR-1998 - present Notes : SN 69818 : No met data transmitted 07-MAY-1998 : to 01-JUL-1998 due to bad cable 8.2 Pressure Sensor Model : MET3 Manufacturer : Paroscientific Data Frequency : 600 seconds Accuracy (mbar) : NA Height Diff to GPS (m) : ~ +0.25 m Effective Dates : 12-MAR-1998 - present Notes : SN 69818 8.3 Temperature Sensor Model : MET3 Manufacturer : Paroscientific Data Frequency : 600 seconds Accuracy (deg C) : <=0.5 Effective Dates : 12-MAR-1998 - present Notes : SN 69818 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 Dr. : La Jolla, CA 92093-0225 Primary Contact Contact Name : Paul Jamason Telephone (primary) : 619-534-1750 Telephone (secondary) : 619-534-7692 Fax : 619-534-9873 E-mail : pjamason@lox.ucsd.edu Secondary Contact Contact Name : John Galetzka Telephone (primary) : 626-583-7230 Telephone (secondary) : 626-583-7816 Fax : 626-583-7827 E-mail : galetzka@gps.caltech.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 : 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