BREW Site Information Form
     International GPS Service for Geodynamics

0.   Form

     Prepared by (full name)  : Susan Jeffries
     Date Prepared            : 05-DEC-2001
     Report Type              : NEW
     Prepared Using           : -

1.   Site Identification of the GPS Monument

     Site Name                : Brewster VLBA
     Four Character ID        : BREW
     Monument Inscription     : BREW
     IERS DOMES Number        : 40473M001
     CDP Number               : (XXXX)
     Date Installed           : 09-NOV-2001
     Geologic Characteristic  : SAND
       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   : (multiple lines)

2.   Site Location Information

     City or Town             : Brewster
     State or Province        : WA
     Country                  : USA
     Tectonic Plate           : North America
     Approximate Position
       X coordinate (m)       : -2112038.5975
       Y coordinate (m)       : -3705398.5440
       Z coordinate (m)       : 4726845.8210
       Latitude (deg)         : 48.13126
       Longitude (deg)        : -119.68269
       Elevation (m)          : 290
     Additional Information   : (multiple lines)

3.   GPS Receiver Information

3.1  Receiver Type            : ASHTECH UZ-12
     Serial Number            : zr520013805
     Firmware Version         : CJ10
     Date Installed           : 08-NOV-2001 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : UNAVCO ID 70794.

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             : ASH701945C_M    SCIT
     Serial Number            : CR620013703
     Antenna Height (m)       : 0.0083
     Antenna Reference Point  : BPA
     Degree Offset from North : 0
     Antenna Radome Type      : SCIT
     Date Installed           : 08-NOV-2001 hh:mm UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : UNAVCO ID 70799.

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

5.1  Monument Name            : VLBA
     Site Ref CDP Number      : (XXXX)
     Site Ref Domes Number    : (XXXXXXXXX)
     Differential Components from GPS Mark to Site Reference (ITRS)
       dx (m)                 : 0.420
       dy (m)                 : 0.730
       dz (m)                 : -0.942
     Accuracy (mm)            : (mm)
     Date Measured            : 08-NOV-2001
     Additional Information   : Survey method: static GPS

6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Frequency              :
       Effective Dates        : 08-NOV-2001 - 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     : VLBI
       Status                 : PERMANENT
       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                   :
     Mailing Address          :
     Primary Contact
       Contact Name           : Bob Sanderson
       Telephone (primary)    : 509-689-3731
       Telephone (secondary)  :
       Fax                    :
       E-mail                 : bsanders@nrao.edu
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   : (multiple lines)

10.  Responsible Agency (if different from 9.)

     Agency                   : JPL
     Mailing Address          : 4800 Oak Grove Drive
                              : Pasadena, CA 91109 USA
     Primary Contact
     Contact Name             : David A. Stowers
       Telephone (primary)    : 818-354-7055
       Telephone (secondary)  :
       Fax                    : 818-393-4965
       E-mail                 : dstowers@jpl.nasa.gov
     Secondary Contact
     Contact Name             : Oivind Ruud
       Telephone (primary)    : 303-497-8030
       Telephone (secondary)  :
       Fax                    : 303-497-8028
       E-mail                 : ruud@unavco.ucar.edu
     Additional Information   :(multiple lines)

11.  More Information

     URL for More Information : www.unavco.ucar.edu/project_support/
          : network/ggn/ggn.html
     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

ASH701945C_M
Dorne Margolin with chokerings
milled chokerings, watertight design
(replaces recalled SCIGN ASH700936E_C antenna)=20
                       +-------+
                     /     +     \                        <--  0.1280 L2
                    |      +      |                       <--  0.1100 L1
  +-----------------+-------------+------------------+    <--  0.1006 
TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <--  0.0376
+-------------------+-------------+--------------------+  <--  0.0346 
BCR
                    |             |
                    |             |
                    +------x------+                       <--  0.0000 
BPA=3DARP

<--                      0.3890                      -->


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