CMBB Site Information Form Bay Area Regional Deformation Array 0. Form Prepared by (full name) : Nicolas Houlie Date Prepared : 29-SEP-2006 Report Type : UPDATE 1. Site Identification of the GPS Monument Site Name : Columbia College Four Character ID : CMBB Monument Inscription : None IERS DOMES Number : None CDP Number : None Date Installed : 09-Dec-1993 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 : New monument (06-Jan-2000) is poured concrete cylinder with continuous steel reinforcement to older monument. Reference point is mark on SCIGN adaptor. Older monument is drilled and cemented into rock outcrop. Threaded 5/8" rod cemented about 0.8m deep into rock with stainless steel collar at surface. Antenna threads onto rod in reproducible manner. Mark is center of rod at level of concrete lip. Additional Information : Bay Area Regional Deformation Array. 2. Site Location Information City or Town : Columbia State or Province : California Country : USA Tectonic Plate : North American 2.1 Approximate Position X coordinate (m) : -2544616.5250 Y coordinate (m) : -4339616.2636 Z coordinate (m) : 3908861.1757 Latitude (deg) : 38.0341 N Longitude (deg) : -120.3860 E Elevation (m) : 695.26 Date Installed : 09-Dec-1993 00:00 UT Date Removed : 05-Jan-2000 22:18 UT Additional Information : Original reference point. 2.2 Approximate Position X coordinate (m) : -2544616.7295 Y coordinate (m) : -4339616.7468 Z coordinate (m) : 3908861.2453 Latitude (deg) : 38.0342 N Longitude (deg) : -120.3860 E Elevation (m) : 695.727 Date Installed : 06-Jan-2000 20:16 UT Date Removed : Additional Information : New reference point. Original reference point was destroyed during installation of new concrete pier monument (see 1.) 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Serial Number : 700571B02283 Firmware Version : 7A Date Installed : 09-Dec-1993 00:00 UT Date Removed : 15-Apr-1994 20:27 UT Additional Information : Operated in codeless mode 02-Feb-1994 to 15-Apr-1994 3.2 Receiver Type : ASHTECH Z-XII3 Serial Number : 700724B02275 Firmware Version : 1C01 Date Installed : 16-Apr-1994 00:00 UT Date Removed : 10-Mar-1996 23:59 UT Additional Information : None 3.3 Receiver Type : ASHTECH Z-XII3 Serial Number : 700724B01827 Firmware Version : 1E82 Date Installed : 22-Mar-1996 00:01 UT Date Removed : 09-May-1996 23:59 UT Additional Information : None 3.4 Receiver Type : ASHTECH Z-XII3 Serial Number : 700724B02275 Firmware Version : 1E86 Date Installed : 09-May-1996 00:00 UT Date Removed : 08-Aug-1996 22:19 UT Additional Information : Replaced because of high clock drift. 3.5 Receiver Type : ASHTECH Z-XII3 Serial Number : 700363B1693 Firmware Version : 1E86 Date Installed : 09-Aug-1997 02:18 UT Date Removed : 19-Aug-1997 19:33 UT Additional Information : None 3.6 Receiver Type : ASHTECH Z-XII3 Serial Number : 700363B1693 Firmware Version : 1F60 Date Installed : 21-Aug-1997 04:00 UT Date Removed : 27-Jul-1999 23:41 UT Additional Information : None 3.7 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01383 Firmware Version : CC00 Date Installed : 28-Jul-1999 00:00 UT Date Removed : 11-Jul-2006 21:00 UT Additional Information : None 3.8 Receiver Type : ASHTECH UZ-12 Serial Number : ZR520014802 Firmware Version : CJ10 Date Installed : 11-Jul-2006 21:00 UT Date Removed : 28-Sep-2006 21:30 UT Additional Information : None 3.9 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01383 Firmware Version : CC00 Date Installed : 28-Sep-2006 21:30 UT Date Removed : Additional Information : None 4. GPS Antenna Information 4.1 Antenna Type : ASH700228D ENCL Serial Number : 700228D2132 Antenna Height (m) : -0.015 Antenna Reference Point : BPA Degree Offset from North : 15 (E) Antenna Radome Type : Plexiglass Skylight Date Installed : 09-Dec-1993 00:00 UT Date Removed : 19-Aug-1997 19:33 UT Additional Information : Antenna height measured relative to original reference point. 4.2 Antenna Type : ASH700936C_M SNOW Serial Number : 12372 Antenna Height (m) : 0.0627 Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : Ashtech Cone Date Installed : 20-Aug-1997 04:00 UT Date Removed : 05-Jan-2000 22:18 UT Additional Information : Antenna height measured relative to original reference point. 4.3 Antenna Type : ASH700936C_M SCIT Serial Number : 12372 Antenna Height (m) : 0.0083 Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : SCIGN Tall Date Installed : 06-Jan-2000 20:16 UT Date Removed : Additional Information : Mounted on permanently installed SCIGN adapter. Antenna height is standard value relative to adapter reference point, a dimpled nub. 5. Local Site Ties - None to date 6. Frequency Standard 6.1 Standard Type : INTERNAL Frequency : Effective Dates : 08-Dec-1993 - Present Notes : None 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 202 McCone Hall Berkeley CA 94720-4760 Primary Contact Contact Name : Mark Murray Telephone (primary) : 510.642.3977 Telephone (secondary) : 510.643.3980 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 as above 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 : No Monument Description : No Site Pictures : No Additional Information : No Antenna Graphics with Dimensions Ashtech: GEODETIC L1/L2 ^ +-------------------+ +--+ +-------+-----------+-----------+--------+ +--+ <--0.064 TGP=L1=L2 +-+--+ +------------+-------------+-------------+ +--+-+ <-- 0.060 BGP |-------------| |-------------| |-------------| |-------------| +------x------+ <-- 0.000 BPA/ARP <-- 0.080 --> <-- 0.2636 --> <-- 0.286 --> 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 BPA/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