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     SITE INFORMATION FORM
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0. Form

        Prepared by (full name): Miranda Chin
        Date                   : Feb. 5, 1996
        Report type            : UPDATE
          (NEW or UPDATE)

1. Site Identification of the GPS monument

        Site Name              : U.S. Naval Academy
        4 char ID              : USNA
        Monument Inscription   : (none)
        IERS DOMES Number      : TBD
        CDP Number             : (none)
        Date                   : Jan. 13, 1995
        Additional information : (none)

2. Site Location

        City                   : Annapolis, Maryland
        Country                : U.S.A.
        Tectonic Plate         : North American
        Additional information :

3. GPS Receiver

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T254
        Firmware Version       : 3.0.32.1
        Date                   : Jan. 13, 1995 - Feb. 18, 1995

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T139
        Firmware Version       : 3.0.32.1
        Date                   : Feb. 22, 1995 - Feb. 27, 1995

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T254
        Firmware Version       : 3.2
        Date                   : March 20, 1995 - June 1, 1995

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T149
        Firmware Version       : 3.2
        Date                   : June 1, 1995 - Aug. 18, 1995

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T254
        Firmware Version       : 3.2
        Date                   : Aug. 18, 1995 - Sept. 9, 1995

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T149
        Firmware Version       : 3.2
        Date                   : Setp. 13, 1995 - Nov.13, 1995

        Type                   : Rogue SNR-8000 (Turbo Rogue)
        Serial Number          : T254
        Firmware Version       : 3.2
        Date                   : Nov.13, 1995 - present

4. GPS Antenna

        Type                   : Dorne Margolin T
        Serial Number          : 312
        Date                   : Jan 13, 1995 - June 1, 1995
        Vertical Antenna Height: 0.000m
        Antenna Reference Point: BPA (Bottom of the Pre-Amp)
        Date                   : Jan. 13, 1995

        Type                   : Dorne Margolin T
        Serial Number          : 408
        Date                   : June 1, 1995 - Aug. 18, 1995
        Vertical Antenna Height: 0.000m
        Antenna Reference Point: BPA (Bottom of the Pre-Amp)
        Date                   : Jan. 13, 1995

        Type                   : Dorne Margolin T
        Serial Number          : 312
        Date                   : Aug. 18, 1995 - present
        Vertical Antenna Height: 0.000m
        Antenna Reference Point: BPA (Bottom of the Pre-Amp)
        Date                   : Jan. 13, 1995

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                   : October 5, 1994

7. Collocation

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

        Other GEOPHYSICAL Instrumentation (specify)  : DORIS, Absolute Gravity

        Other (specify)        : Timing Instrumentation

8. Data Communiction

        Modem                  :
        Internet               :

9. On-site, Point of Contact Agency Information

        Agency                 :
        Contact                :
        Address                :
        Telephone              :
        E-mail                 :
        Fax                    :

10. Responsible Operations Agency

        Agency                 : Geosciences Laboratory, NOS/NOAA
        Contact                : Miranda Chin
        Address                : NOAA, N/OES13
                                 SSMC IV, Sta 8201
                                 1305 East-West Hwy.
                                 Silver Spring  MD  20910
                                 U.S.A.
        Telephone              : 301-713-2852
        E-mail                 : miranda@gracie.grdl.noaa.gov
        Fax                    : 301-713-4475

11. 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

<--                      0.381                       -->


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

12. 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          : X