MODB Site Information Form International GPS Service for Geodynamics 0. Form 0.1 Prepared by (full name) : Andre Basset Date Prepared : 05-Mar-2001 Report Type : NEW 1. Site Identification of the GPS Monument Site Name : Modoc, CA -- Modoc Plateau Four Character ID : MODB Monument Inscription : None IERS DOMES Number : None CDP Number : None Date Installed : 11-Nov-1999 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 : Reinforced concrete monument, 0.5 m high, 0.3 m : in diameter. Monument is fastened to underlying : rock with cemented reinforcing rods. 1.5" pipe : cemented into concrete pillar for SCIGN adaptor. : Reference point is mark on SCIGN adaptor. Additional Information : Bay Area Regional Deformation Array 2. Site Location Information City or Town : Rural, near Alturas State or Province : California Country : USA Tectonic Plate : North American Approximate Position X coordinate (m) : -2399442.4573 Y coordinate (m) : -4105688.1843 Z coordinate (m) : 4238582.0671 Latitude (deg) : 41.9023 N Longitude (deg) : 120.3028 W Elevation (m) : 1567.2677 m Additional Information : 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Serial Number : 700570C04693 Firmware Version : CC11 Date Installed : 11-Nov-1999 00:00 UT Date Removed : 08-Feb-2001 18:29 UT Additional Information : None 3.2 Receiver Type : ASHTECH Z-XII3 Serial Number : LP01046 Firmware Version : CD00 Date Installed : 09-Feb-2001 00:29 UT Date Removed : Additional Information : None 4. GPS Antenna Information 4.1 Antenna Type : ASH701945B_M SCIT Serial Number : CR519992601 Antenna Height (m) : 0.0083 (m) Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : SCIGN Tall 00127 Date Installed : 11-Nov-1999 00:00 UT Date Removed : 08-Feb-2001 18:29 UT Additional Information : SCIGN Adaptor : Mounted on permanently installed SCIGN : adapter. Antenna height is standard value : relative to adapter reference point, a : dimpled nub. 4.2 Antenna Type : ASH701945B_M SCIT Serial Number : CR20001206 Antenna Height (m) : 0.0083 (m) Antenna Reference Point : BPA Degree Offset from North : 0 Antenna Radome Type : SCIGN Tall 00127 Date Installed : 09-Feb-2001 00:29 UT Date Removed : Additional Information : SCIGN Adaptor : Mounted on permanently installed SCIGN : adapter. Antenna height is standard value : relative to adapter reference point, a : dimpled nub. 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 : Andre Basset 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 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