BRAN Site Information Form
     International GPS Service for Geodynamics


0.   Form

     Prepared by (full name)  : Ken Hudnut
     Date Prepared            : 31-OCT-1997
     Report Type              : UPDATE
     Prepared Using           :


1.   Site Identification of the GPS Monument

     Site Name                : Brand Debris Basin PGGA station
     Four Character ID        : BRAN
     Monument Inscription     : none
     IERS DOMES Number        : 40400M301
     CDP Number               : None
     Date Installed           : 30-NOV-1994 hh:mm UT
     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   : Antenna mounted over pipe with fitting adaptor.
                              : Drilled-braced type monument using 3" galv pipe.
                              : Legs extend to varied depths (approx. 30').
                              : Vertical datum is filed notch in vertical pipe.
                              : SCIGN - Southern California Integrated GPS
                              : Network


2.   Site Location Information

     City or Town             : Burbank
     State or Province        : California
     Country                  : USA
     Tectonic Plate           : Pacific-North America plate boundary
     Approximate Position
       X coordinate (m)       : -2502223.9
       Y coordinate (m)       : -4651618.1
       Z coordinate (m)       :  3563590.9
       Latitude (deg)         :   34.1853
       Longitude (deg)        : -118.2769
       Elevation (m)          :  221.0502
     Additional Information   : Los Angeles County
                              : Approximate ITRF92 coordinates. Epoch 1994.9


3.   GPS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T 261 (USGS1)
     Firmware Version         : 2.8.32.1
     Date Installed           : 30-NOV-1994 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : First measurements

3.2  Receiver Type            : ASHTECH Low Power Z-XII Model 700845-6(1)
     Serial Number            : 357 (USGS Property #G-615682)
     Firmware Version         : NAV 1E24, CHN 1C70
     Date Installed           : 06-APR-1995 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : (multiple lines)

3.3  Receiver Type            : ASHTECH Low Power Z-XII Model 700845-6(1)
     Serial Number            : 357 (USGS Property #G-615682)
     Firmware Version         : NAV 1E24, CHN 1C70
     Date Installed           : 19-MAY-1995 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : No changes to the rx at this time.

3.4  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T 261 (USGS1)
     Firmware Version         : 2.8.32.1
     Date Installed           : 18-JUL-1995 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : (multiple lines)

3.5  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T 261 (USGS1)
     Firmware Version         : 3.2.8
     Date Installed           : 29-JAN-1997 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : Firmware upgrade from 2.8 to 3.2.8

3.6  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T 261 (USGS1)
     Firmware Version         : 3.2.8
     Date Installed           : 13-FEB-1997 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : Replaced original ROGUE Rx for the JPL Rx to be
                              : returned by 01-MAR-1997.

3.7  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T 261 (USGS1)
     Firmware Version         : 3.2.8
     Date Installed           : 27-FEB-1997 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : Replaced original ROGUE Rx for the JPL
                              : substitute after 3-week observation period.
                              : THE SWAP OCCURED AT ~1045 LOCAL/ ~1854 GMT.

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             : DORNE MARGOLIN T
     Serial Number            : 373
     Antenna Height (m)       : 0.145
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 30-NOV-1994 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : RFI filter
                              : vertical height from filed notch on north side
                              : of pipe to base of antenna pre-amp

4.2  Antenna Type             : ASHTECH L1/L2 P Model 700718-B (Lg Ground Plane)
     Serial Number            : 10856
     Antenna Height (m)       : 0.165
     Antenna Reference Point  : BPA
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 06-APR-1995 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : (multiple lines)

4.3  Antenna Type             : ASHTECH Model 700936-A (Metal Choke Ring)
     Serial Number            : 11474
     Antenna Height (m)       : 0.248
     Antenna Reference Point  : ARP/BPA
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 19-MAY-1995 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : adaptor fitting emplaced to elevate antenna
                              : same filed notch used as vertical datum

4.4  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 373
     Antenna Height (m)       : 0.245
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 18-JUL-1995 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : RFI filter
                              : vertical height from filed notch on north side
                              : of pipe to base of antenna pre-amp. Adaptor
                              : still in place.

4.5  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 373
     Antenna Height (m)       : 0.245
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 29-JAN-1997 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : No changes to antenna at this time.

4.6  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 373
     Antenna Height (m)       : 0.245
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 13-FEB-1997 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : No changes to antenna at this time.

4.7  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 373
     Antenna Height (m)       : 0.245
     Antenna Reference Point  : ARP
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 27-FEB-1997 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : No changes to antenna at this time.

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        : 30-NOV-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 Instrumentation    : (multiple lines)


9.   On-Site, Point of Contact Agency Information

     Agency                   : U.S. Geological Survey
                              : Office of Earthquakes, Volcanoes and
                              : Engineering
     Mailing Address          : U.S. Geological Survey
                              : 525 South Wilson Ave.
                              : Pasadena, CA 91106
     Primary Contact
       Contact Name           : Kenneth W. Hudnut
       Telephone (primary)    : (818) 583-7232
       Telephone (secondary)  :
       Fax                    : (818) 583-7827
       E-mail                 : hudnut@seismo.gps.caltech.edu
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   : (multiple lines)


10.  Responsible Agency (if different from 9.)

     Agency                   :
     Mailing Address          :
                              :
                              :
     Primary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   :


11.  More Information

     URL for More Information :
     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


LGP antenna replaced by DM type antenna on 5-19-95
               ASHTECH: GEODETIC L1/L2 P Large Ground Plane

                           ^
                 +-------------------+
+-+--+-+-------+-----------+-----------+--------+-+--+-+    <--  0.064 TGP=L1=L2

+-+--+-+------------+-------------+-------------+-+--+-+    <--  0.??? BGP
                    |-------------|
                    |-------------|
                    |-------------|
                    |-------------|
                    +------x------+                       <--  0.000 ARP=BPA
                                                              -0.165 m ARP to
                                                                vert datum mark
                  <--    0.080    -->
<--                      0.3474                      -->


   ARP: Antenna Reference Point
   L1 : L1 Phase Center                   L2 : L2 Phase Center
   TGP: Top of Ground Plane               BGP: Bottom of Ground Plane
   TPA: Top of Preamplifier               BPA: Bottom of Preamplifier


             ASHTECH: Metal Choke Ring Type
             NOTE: Dimensions and Offsets Presumed to be same as
                   for TURBOROGUE DM-T (tests pending)

                         -----
                     /     +     \                        <-- 0.128  L2
                    |      +      |                       <-- 0.110  L1
  +--------------------------------------------------+    <-- 0.102  TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <-- 0.038
+-------------------+-------------+--------------------+  <-- 0.035  BCR
                    |             |
                   =|             |
                    +------x------+                       <-- 0.000 m ARP
                                                             -0.248 m ARP to
                                                                vert datum mark
<--                      0.381                       -->


TURBOROGUE: DORNE MARGOLIN T

                         -----
                     /     +     \                        <-- 0.128  L2
                    |      +      |                       <-- 0.110  L1
  +--------------------------------------------------+    <-- 0.102  TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <-- 0.038
+-------------------+-------------+--------------------+  <-- 0.035  BCR
                    |             |
                   =|             |
                    +------x------+                       <-- 0.000  ARP

<--                      0.381                       -->


   ARP: Antenna Reference Point
   L1 : L1 Phase Center                   L2 : L2 Phase Center
   TCR: Top of Chokering                  BCR: Bottom of Chokering