**********************************
     SITE INFORMATION FORM
**********************************


0. Form

        Prepared by (full name): Keith F. Stark
        Date                   : 30-Apr-1996
        Report type            : New
          (NEW or UPDATE)

1. Site Identification of the GPS monument

        Site Name              : Ascension Island
        4 char ID              : ASC1
        Monument Inscription   : None
        IERS DOMES Number      : TBD
        CDP Number             : None
        Date                   : 20-Apr-1996
        Additional information : Roof Mount

2. Site Location

        City                   : Ascension Island
        Country                : Ascension Island
        Tectonic Plate         :
        Additional information : US Air Force Base

3. GPS Receiver

        Type                   : ROGUE SNR-8000
        Serial Number          : R363
        Firmware Version       : 3.2 link 3/9/95
        Date                   : 20-Apr-1996

   (use type names from attached list)

4. GPS Antenna

        Type                   : DORNE MARGOLIN T
        Serial Number          : 203
        Date                   : 20-Apr-1996

   (use type names from attached list)

        Vertical Antenna Height: 0.06767 m
        Antenna Reference Point: ARP
        Date                   : 20-Apr-1996

5. Local Site Ties

Monument               CDP     DOMES             Components      Accuracy  Date
Name                   Number  Number       dX       dY      dZ     mm yy-mm-dd

...................   ....... ........   ........ ........ ........ .. .. .. ..
...................   ....... ........   ........ ........ ........ .. .. .. ..
...................   ....... ........   ........ ........ ........ .. .. .. ..

Differential coordinates from the GPS monument to the reference and
other monuments. The components are parallel to the XYZ-axes of the
global geocentric reference system ITRF (WGS-84).

"Accuracy" is estimated accuracy of local survey (millimeters).

6. Frequency standard

        H-maser /   /   Cesium /   /    Quartz /   /     Internal / X /
        Other (specify)        :
        Date                   : 20-Apr-1996

        (Mark with 'X')

7. Collocation

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

        Other GEOPHYSICAL Instrumentation (specify) :

        Other (specify)        :

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

8. On-site, Point of Contact Agency Information

        Agency                 : JPL
        Contact                : Keith F. Stark
        Address                : 4800 Oak Grove Drive
                               : Pasadena, CA
        Telephone              : 818-354-5922
        E-mail                 : stark@logos.jpl.nasa.gov
        Fax                    : 818-393-4965

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

        Agency                 : JPL
        Contact                : Keith F. Stark
        Address                : 4800 Oak Grove Drive
                               : Pasadena, CA
        Telephone              : 818-354-5922
        E-mail                 : stark@logos.jpl.nasa.gov
        Fax                    : 818-393-4965

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


             TurboRogue: DORNE MARGOLIN T

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


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

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          :