From: Chris Roelle Subject: [IGSMAIL-1713] DHLG Site Log Update Date: Tue, 28 Oct 1997 20:19:20 PST ****************************************************************************** IGS Electronic Mail Tue Oct 28 20:19:20 PST 1997 Message Number 1713 ****************************************************************************** Author: Chris Roelle Subject: DHLG Site Log Update Subject: DHLG Site Log Update The log file for the GPS site at Durmid Hill, California, USA (DHLG) has been updated to accurately reflect the elevation of the monument. The log is available for ftp at lox.ucsd.edu://pub/docs/site_logs/dhlg.log and is included in this message. We regret any inconvenience this inaccuracy caused. Regards, Chris Roelle DHLG Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : Chris Roelle Date Prepared : 17-OCT-1997 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 : (XXXXXXXXX) 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) : -2319120.7869 Y coordinate (m) : -4799881.2570 Z coordinate (m) : 3490071.5368 Latitude (deg) : 33.2129 N Longitude (deg) : 115.7881 W Elevation (m) : -59.5061 Additional Information : Coordinates taken from Rinex file header, : converted to WGS84 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 : ARP 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 : (multiple lines) 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 ARP <-- 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 [Mailed From: Geodesy Lab account ]