HOLC Site Information Form Southern California Integrated GPS Network 0. Form Prepared by (full name) : Shannon Van Wyk Date Prepared : 09-DEC-1999 Report Type : DYNAMIC Prepared Using : SOPAC Site Information Manager 1. Site Identification of the GPS Monument Site Name : Holcomb Ridge Four Character ID : HOLC Monument Inscription : IERS DOMES Number : 40404M101 CDP Number : (XXXX) Date Installed : 12-AUG-1994 00:00 UT Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC (MARBLE) Bedrock Condition : JOINTED Fracture Spacing : 1-10 cm Notes : (multiple lines) Additional Information : 3/4" diameter, stainless steel rod with : removable brass adaptor atop vertical rod. : Hard limestone foundation, 4 10-12 foot : stainless steel rods - one vertical, three : oblique, welded above surface. Vertical datum : is a filed notch in the vertical rod. Legs are : isolated from shallow rock and soil by PVC in : the uppermost ~5'. Antenna housing is Kearney- : Powerglass fiberglass (rounded rectangular : shape). Antenna is mounted low to the ground. : SCIGN - Southern California Integrated GPS : Network 2. Site Location Information City or Town : Pearblossom State or Province : California Country : USA Tectonic Plate : North America Pacific Approximate Position X coordinate (m) : -2459517.98 Y coordinate (m) : -4655992.24 Z coordinate (m) : 3589168.81 Latitude (deg) : 34.46 N Longitude (deg) : -117.85 W Elevation (m) : 1238.16 Additional Information : Los Angeles County. : Reference frame used is (ITRF96). : Coordinate system used is (WGS84). 3. GPS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Serial Number : 03377 Firmware Version : NAV 1D00, CHN 1C01 Date Installed : 12-AUG-1994 00:00 UT Date Removed : 15-APR-1995 00:00 UT Additional Information : First measurements : (Loaner # 1) 3.2 Receiver Type : ASHTECH Z-XII3 Serial Number : 460 Firmware Version : 1D00 Date Installed : 15-APR-1995 00:00 UT Date Removed : 15-MAY-1995 00:00 UT Additional Information : PJ: added this entry to DB based on rinex, : not in pre-DB log file 3.3 Receiver Type : ASHTECH Z-XII3 Serial Number : 04368 Firmware Version : NAV 1E24, CHN 1C70 Date Installed : 15-MAY-1995 00:00 UT Date Removed : 24-SEP-1996 00:00 UT Additional Information : exchanged Loaner #1 for USGS rec/ant unit 3.4 Receiver Type : ASHTECH Z-XII3 Serial Number : 04368 Firmware Version : NAV 1E95 1D01 Date Installed : 24-SEP-1996 00:00 UT Date Removed : 14-AUG-1998 00:00 UT Additional Information : firmware upgrade 3.5 Receiver Type : ASHTECH Z-XII3 Serial Number : LP03008 Firmware Version : 1F50 Date Installed : 14-AUG-1998 00:00 UT Date Removed : 30-DEC-1998 00:00 UT Additional Information : Previous receiver locked up after lightning : strike 3.6 Receiver Type : ASHTECH Z-XII3 Serial Number : LP02896 Firmware Version : CB00 Date Installed : 30-DEC-1998 00:00 UT Date Removed : 22-JUN-1999 18:01 UT Additional Information : Previous receiver produced incomplete files 3.7 Receiver Type : ASHTECH Z-XII3 Serial Number : LP02896 Firmware Version : CC00 Date Installed : 22-JUN-1999 18:01 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : GPS week rollover-compliant 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 : ASH700718B Serial Number : 10293 Antenna Height (m) : 0.0876 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : NONE Date Installed : 12-AUG-1994 00:00 UT Date Removed : 15-MAY-1995 00:00 UT Additional Information : field measurement 10.35 cm to base of wide part 4.2 Antenna Type : ASH700718B Serial Number : 10485 Antenna Height (m) : 0.0870 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : NONE Date Installed : 15-MAY-1995 00:00 UT Date Removed : 26-MAY-1995 00:00 UT Additional Information : field measurement 10.30 cm to base of wide : part of antenna base reduced by 1.6 cm : correction (to base of narrow part) exchanged : Loaner #1 for USGS rec/ant unit 4.3 Antenna Type : ASH700936A_M Serial Number : 11477 Antenna Height (m) : 0.0850 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : NONE Date Installed : 26-MAY-1995 00:00 UT Date Removed : 08-DEC-1999 00:00 UT Additional Information : same filed notch used as vertical datum. DM : type antenna installed, old LGP antenna removed. 4.4 Antenna Type : ASH700936E_C Serial Number : CR14570 Antenna Height (m) : 0.0825 Antenna Reference Point : BPA Degree Offset from North : Antenna Radome Type : CAFG Date Installed : 08-DEC-1999 00:00 UT Date Removed : (dd-MMM-yyyy hh:mm UT) Additional Information : old antenna removed due to slow failure-- : possible lightning strike damage weeks earlier. 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 : 12-AUG-1994 - 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 Instrumenation (multiple lines) 9. On-Site, Point of Contact Agency Information Agency : United States Geological Survey Mailing Address : Pasadena Field Office, 525 S. Wilson Ave., : Pasadena CA 91106 Primary Contact Contact Name : John Galetzka Telephone (primary) : 626-583-7230 Telephone (secondary) : 626-583-7816 Fax : 626-583-7827 E-mail : galetzka@gps.caltech.edu Secondary Contact Contact Name : Paul F. Jamason Telephone (primary) : 619-534-1750 Telephone (secondary) : 619-534-7692 Fax : 619-534-9873 E-mail : pjamason@lox.ucsd.edu Additional Information : SCIGN Network Coordinator 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 : http://www.scign.org Hardcopy on File Site Map : (Y) Site Diagram : (Y) Horizon Mask : (Y) Monument Description : (Y) Site Pictures : (Y) Additional Information : (multiple lines) Antenna Graphics with Dimensions (insert text graphic)