USNA Site Information Form
     International GPS Service for Geodynamics


0.   Form

     Prepared by (full name)  : Miranda Chin, Linda Nussear
     Date Prepared            : 21-AUG-1997
     Report Type              : UPDATE
     Prepared Using           :


1.   Site Identification of the GPS Monument

     Site Name                : U.S. Naval Academy
     Four Character ID        : USNA
     Monument Inscription     : (none)
     IERS DOMES Number        : (XXXXXXXXX)
     CDP Number               : (none)
     Date Installed           : 13-JAN-1995
     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   : (multiple lines)


2.   Site Location Information

     City or Town             : Annapolis
     State or Province        : Maryland
     Country                  : U.S.A.
     Tectonic Plate           : North American
     Approximate Position
       X coordinate (m)       : 1160668.9530
       Y coordinate (m)       : -4826883.3189
       Z coordinate (m)       : 3990863.0442
       Latitude (deg)         : ( dd.dddd N/S)
       Longitude (deg)        : (ddd.dddd E/W)
       Elevation (m)          : (m)
     Additional Information   :


3.   GPS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T254
     Firmware Version         : 3.0.32.1
     Date Installed           : 13-JAN-1995
     Date Removed             : 18-FEB-1995
     Additional Information   :

3.2  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T139
     Firmware Version         : 3.0.32.1
     Date Installed           : 22-FEB-1995
     Date Removed             : 27-FEB-1995
     Additional Information   :

3.3  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T254
     Firmware Version         : 3.2
     Date Installed           : 20-MAR-1995
     Date Removed             : 01-JUN-1995
     Additional Information   :

3.4  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T149
     Firmware Version         : 3.2
     Date Installed           : 01-JUN-1995
     Date Removed             : 18-AUG-1995
     Additional Information   :

3.5  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T254
     Firmware Version         : 3.2
     Date Installed           : 18-AUG-1995
     Date Removed             : 09-SEP-1995
     Additional Information   :

3.6  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T149
     Firmware Version         : 3.2
     Date Installed           : 13-SEP-1995
     Date Removed             : 13-NOV-1995
     Additional Information   :

3.7  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T254
     Firmware Version         : 3.2
     Date Installed           : 13-NOV-1995
     Date Removed             : 26-APR-1996
     Additional Information   :

3.8  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T371
     Firmware Version         : 3.2.32.1
     Date Installed           : 26-APR-1996
     Date Removed             : 25-APR-1997
     Additional Information   :

3.9  Receiver Type            : ROGUE SNR-8000
     Serial Number            : T366
     Firmware Version         : 3.2.32.1
     Date Installed           : 25-APR-1997
     Date Removed             : 12-JUN-1997 12:33 UT
     Additional Information   :


3.10 Receiver Type            : ROGUE SNR-12 RM
     Serial Number            : T210
     Firmware Version         : 3.2.32.1
     Date Installed           : 12-JUN-1997 12:45 UT
     Date Removed             : 21-AUG-1997 14:58 UT
     Additional Information   :

3.11 Receiver Type            : ROGUE SNR-8000
     Serial Number            : T148
     Firmware Version         : 3.2.32.1
     Date Installed           : 21-AUG-1997 16:50 UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : (multiple lines)

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            : 312
     Antenna Height (m)       : 0.000
     Antenna Reference Point  : BPA (Bottom of the Pre-Amp)
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 13-JAN-1995 UT
     Date Removed             : 01-JUN-1995 UT
     Additional Information   : (multiple lines)

4.2  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 408
     Antenna Height (m)       : 0.000
     Antenna Reference Point  : BPA (Bottom of the Pre-Amp)
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 01-JUN-1995 UT
     Date Removed             : 18-AUG-1995 UT
     Additional Information   : (multiple lines)

4.3  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : 312
     Antenna Height (m)       : 0.000
     Antenna Reference Point  : BPA (Bottom of the Pre-Amp)
     Degree Offset from North :
     Antenna Radome Type      :
     Date Installed           : 18-AUG-1995 UT
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : (multiple lines)

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        : 05-OCT-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                  : Timing Instrumentation


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


10.  Responsible Agency (if different from 9.)

     Agency                   : Geosciences Laboratory, NOS/NOAA
     Mailing Address          : SSMC IV, Sta 8201
                              : 1305 East-West Hwy.
                              : Silver Spring  MD  20910
                              : U.S.A.
     Primary Contact
       Contact Name           : Miranda Chin
       Telephone (primary)    : 301-713-2852
       Telephone (secondary)  :
       Fax                    : 301-713-4475
       E-mail                 : miranda@gracie.grdl.noaa.gov
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   : (multiple lines)


11.  More Information

     URL for More Information :
     Hardcopy on File
       Site Map               : (Y)
       Site Diagram           : (Y)
       Horizon Mask           : (Y)
       Monument Description   : (Y)
       Site Pictures          : X
     Additional Information   : (multiple lines)
     Antenna Graphics with 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