YBHB Site Information Form International GPS Service for Geodynamics 0. Form Prepared by (full name) : Ray Baxter Date Prepared : 21-Jul-1999 Report Type : UPDATE Prepared Using : GNU Emacs 1. Site Identification of the GPS Monument Site Name : Yreka, CA -- Yreka Blue Horn Mine Four Character ID : YBHB Monument Inscription : None IERS DOMES Number : None CDP Number : None Date Installed : 24-Oct-1996 Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) 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 : (multiple lines) Additional Information : BARD - Bay Area Regional Deformation Array. Reinforced concrete monument, approximately 1m high. Monument is fastened to underlying rock with cemented reinforcing rods. Threaded 5/8" rod cemented about 0.8m deep into concrete. Antenna threads onto rod. Mark is a virtual reference point in the center of the rod at the top of washer epoxied nearest parapet. 2. Site Location Information City or Town : West of Yreka State or Province : California Country : USA Tectonic Plate : North America Approximate Position X coordinate (m) : -2576447.7455 (m) Y coordinate (m) : -4011576.4846 (m) Z coordinate (m) : 4224117.0686 (m) Latitude (deg) : 41.7317 N Longitude (deg) : 122.7107 W Elevation (m) : 1065.7074 (m) Additional Information : Located adjacent to site of Yreka Blue Horn Mine 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01384 Firmware Version : 1E86 Date Installed : 24-Oct-1996 Date Removed : 27-Nov-1996 Additional Information : None 3.2 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01393 Firmware Version : 1E95 Date Installed : 27-Nov-1996 Date Removed : 11-Jun-1998 Additional Information : None 3.3 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01393 Firmware Version : 1F60 Date Installed : 11-Jun-1998 Date Removed : 08-Jul-1999 20:36 UT Additional Information : None 3.4 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01393 Firmware Version : CC00 Date Installed : 08-Jul-1999 22:39 UT Date Removed : Additional Information : None 4. GPS Antenna Information 4.1 Antenna Type : ASH700936C_M NONE Serial Number : 12414 Antenna Height (m) : 0.0531 (m) Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : None Date Installed : 24-Oct-1996 Date Removed : 08-Jul-1999 20:36 UT Additional Information : None 4.2 Antenna Type : ASH700936C_M SCIT Serial Number : 12414 Antenna Height (m) : 0.1269 (m) Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : SCIGN Tall 00207 Date Installed : 08-Jul-1999 22:39 UT Date Removed : Additional Information : SCIGN Adaptor 0122 HI from previous refernce mark: Reference mark to base = 98.9 mm Base of adapter to SCIGN mark = 19.685 mm SCIGN mark to BPA = 8.3mm 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 : (H-MASER/CESIUM/QUARTZ/INTERNAL/RUBIDIUM) Frequency : Effective Dates : (dd-MMM-yyyy - 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 : 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 as above 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 (insert text graphic) 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