MHCB Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : Nicolas Houlie Date Prepared : 10-Mar-2008 Report Type : UPDATE Prepared Using : GNU Emacs 1. Site Identification of the GPS Monument Site Name : Mt. Hamilton - BARD Station Four Character ID : MHCB Monument Inscription : None IERS DOMES Number : None CDP Number : None Date Installed : 20-May-1996 00:00 UT Geologic Characteristic : BEDROCK 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 : Site is atop a building. Additional Information : BARD - Bay Area Regional Deformation Array. Monument drilled and cemented into a roof parapet of a concrete building. Threaded 5/8" rod cemented about 0.8m deep into concrete surface. Antenna threads onto rod. Mark is a virtual reference point in the center of the rod at the top 2. Site Location Information City or Town : East of San Jose State or Province : California Country : USA Tectonic Plate : Pacific-North America plate boundary Approximate Position X coordinate (m) : -2664063.5806 Y coordinate (m) : -4323172.1087 Z coordinate (m) : 3848361.5480 Latitude (deg) : 37.3415 N Longitude (deg) : 121.6426 W Elevation (m) : 1261 Additional Information : On roof of Photo Archive Building of the Lick Observatory on the summit of Mt Hamilton. 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01042 Firmware Version : 1E86 Date Installed : 20-May-1996 00:00 UT Date Removed : 05-Feb-1999 23:59 UT Additional Information : None 3.2 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01042 Firmware Version : 1F60 Date Installed : 06-Feb-1999 00:00 UT Date Removed : 22-Apr-1999 22:22 UT Additional Information : None 3.3 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01387 Firmware Version : CC00 Date Installed : 23-Apr-1999 18:25 UT Date Removed : 27-Feb-2008 21:00 UT Additional Information : None 3.4 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01384 Firmware Version : CC00 Date Installed : 27-Feb-2008 21:00 UT Date Removed : Additional Information : None 4. GPS Antenna Information 4.1 Antenna Type : ASH700936D_M NONE Serial Number : 12756 Antenna Height (m) : 0.0687 m Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : None Date Installed : 20-May-1996 00:00 UT Date Removed : 09-Sep-1999 21:21 UT Additional Information : None 4.2 Antenna Type : ASH700936D_M SCIS Serial Number : 12756 Antenna Height (m) : 0.0687 m Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : SCIGN Short Radome Date Installed : 09-Sep-1999 21:24 UT Date Removed : Additional Information : None 5. Local Site Ties - None to date 6. Frequency Standard 6.1 Standard Type : INTERNAL Frequency : Effective Dates : 20-May-1996 - present Notes : (multiple lines) 7. Collocation Information - None 8. Meteorological Instrumentation - None 9. On-Site, Point of Contact Agency Information Agency : Berkeley Seismological Laboratory Mailing Address : University of California 475 McCone Hall Berkeley CA 94720-4760 Primary Contact Contact Name : Ray Baxter Telephone (primary) : 510.642.3977 Telephone (secondary) : 510.643.3898 Fax : 510.643.5811 E-mail : bard@seismo.berkeley.edu Secondary Contact Contact Name : Doug Neuhauser Telephone (primary) : 510.642.3977 Telephone (secondary) : 510.642.0931 Fax : 510.643.5811 E-mail : bard@seismo.berkley.edu Additional Information : None 10. Responsible Agency (if different from 9.) Agency : Same 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://www.quake.geo.berkeley.edu/bard Hardcopy on File Site Map : No Site Diagram : No Horizon Mask : Yes Monument Description : No Site Pictures : Yes Additional Information : None Antenna Graphics with Dimensions a) Ashtech w/Dorne-Margolin Choke Ring ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 BCR +-------------------+-------------+--------------------+ <-- 0.035 BGP | | =| | +------x------+ <-- 0.000 m 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 TPA: Top of Preamplifier BPA: Bottom of Preamplifier