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     SITE INFORMATION FORM
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0. Form

        Prepared by (full name): Mark Murray
        Date                   : 95/05/15
        Report type            : NEW
          (NEW or UPDATE)
 
1. Site Identification of the GPS monument

        Site Name              : Nunes - BARD Station
        4 char ID              : NUNE
        Monument Inscription   : 
        IERS DOMES Number      : 
        CDP Number             : 
        Date                   : 93/10/06
        Additional information : BARD - Bay Area Regional Deformation Array

2. Site Location

        City                   : Sobrante, California
        Country                : USA
        Tectonic Plate         : North America/Pacific
        Additional information : Nunes Ranch, Castra Ranch Road

3. GPS Receiver

A)      Type                   : Trimble 4000SSE
        Serial Number          : 3373
        Firmware Version       : Nav 5.67 Sig 1.26
        Date                   : 93/10/06 

B)      Type                   : Trimble 4000SSE
        Serial Number          : 3373
        Firmware Version       : Nav 6.1 Sig 2.7
        Date                   : before 95/02/01

4. GPS Antenna

A)      Type                   : Trimble 4000ST L1/L2 GEOD
        Serial Number          : 49771
        Date                   : 93/10/06

        Vertical Antenna Height: 0.000
        Antenna Reference Point: BPA
        Date                   : 93/10/06

5. Local Site Ties - None to date
        
6. Frequency standard

        H-maser /   /   Cesium /   /    Quartz /   /     Internal / X /
        Other (specify)        :
        Date                   : 

        (Mark with 'X')

7. Collocation

        SLR    /   /    VLBI  /  /     DORIS  /  /     PRARE    /  /  

        Other GEOPHYSICAL Instrumentation (specify) :

        Other (specify)        :

        (Mark with 'P' for permanent, 'M' for mobile collocation)

8. On-site, Point of Contact Agency Information 

        Agency                 : U.S. Geological Survey
        Contact                : Nancy King
        Address                : 345 Middlefield Road, MS 977
                                 Menlo Park, CA 94025
        Telephone              : (415) 329-4832
        E-mail                 : nking@isdmnl.wr.usgs.gov
        Fax                    : (415) 329-5163

9. Responsible Operations Agency 
   (if different from item 8)

        Agency                 : Trimble Navigation, Inc.
                                
        Contact                : Brian Frohring
        Address                :
                                
        Telephone              : (408) 481-2073
        E-mail                 : brian_frohring@trimble.com
        Fax                    :


10. Please insert here the character graphics corresponding to the 
antenna type. Check, complete or change if necessary the antenna 
dimensions.


               Trimble: 4000ST L1/L2 GEOD

                       ----+----                          <--  0.070  L1
                    /      +      \                       <--  0.068  L2
++----------------+-----------------+-----------------++  <--  0.063  TGP
++---------------+-------------------+----------------++  <--  0.060  BGP
                 |                   |
                  |                 |
                   |               |
                    +------x------+                       <--  0.000  ARP=BPA

                    <--  0.140  -->                                   BPA
                 <--     0.155     -->                                TPA
 <--                     0.467                      -->               NOTCHES
<--                      0.483                       -->              EDGE

   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


11. Hard copy information

    The next items should be compiled and sent to the Central Bureau 
(see original IGS Station Information Report, or contact the CB for 
forms).

    Please mark 'X' if on file or date expected to be available.

        Site Map               :
        Site Diagram           :
        Horizon Mask           :
        Monument description   :
        Site pictures          :