GTY1 Site Information Form
     GPS/GLONASS Campaign IGEX98


0.   Form

     Prepared by (full name)  :	Peter Shardlow
     Date Prepared            : 23-03-99
     Report Type              :  REVISED
     Prepared Using           : Microsoft Word 97 


1.   Site Identification of the GPS Monument

     Site Name                : Great Yarmouth 1
     Four Character ID        :  GTY1
     Monument Inscription     : Engraved Plate
     IERS DOMES Number        :  13213S001
     CDP Number               :  Not Assigned
     Date Installed           :  (01-09-1998 09:00 UT)
     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                  :  Station located at RacalÕs Technical Support Group Office
     Additional Information   :  


2.   Site Location Information

     City or Town             : Great Yarmouth
     State or Province        : Norfolk
     Country                  : United Kingdom
     Tectonic Plate           : 
     Approximate Position
       X coordinate (m)       :  3881486m
       Y coordinate (m)       :    117566m
       Z coordinate (m)       :   5042839m
       Latitude (deg)         :  052.5875 N
       Longitude (deg)        :  001.7347 E
       Elevation (m)          :  59m
     Additional Information   : 


3. Receiver Information

3.1  Receiver Type            : Trimble 4000SSI
     Satellite System         : GPS
     Serial Number            : 3819A22801
     Firmware Version         : 7.24
     Date Installed           : (18-09-1998 10:30 UT)
     Date Removed             : (dd-MMM-yyyy hh:mm UT)
     Additional Information   : 


4.   GPS Antenna Information

4.1  Antenna Type             : Trimble Choke Ring Antenna
     Serial Number            : 0220088088 (P/N 29659-00)
     Antenna Height (m)       :  0.000 (m)
     Antenna Reference Point  :   ARP
     Degree Offset from North : 0
     Antenna Radome Type      : None
     Date Installed           :  (18-09-1999 10:30 UT)
     Date Removed             :  (dd-MMM-yyyy hh:mm UT)
     Additional Information   :  


5.   Local Site Ties

5.1  Monument Name            : N\A
     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   : 


6.   Frequency Standard

6.1  Standard Type            :  INTERNAL
       Frequency              :
       Effective Dates        :  (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  :   


7.   Collocation Information

7.1  Instrumentation Type     :  GLONASS
       Status                 :  PERMANENT
       Effective Dates        :  20-09-1998 Š 
       Notes                  :  


8.   Meteorological Instrumentation

8.1  Humidity Sensor Model    : None
       Manufacturer           :
       Data Frequency         :
       Accuracy (% rel h)     : (% rel h)
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  : (multiple lines)

8.2  Pressure Sensor Model    : None
       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 : None
       Manufacturer           :
       Data Frequency         :
       Accuracy (deg C)       : (deg C)
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  : (multiple lines)

8.4  Water Vapor Radiometer   : None
       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                   :  Racal Survey Limited
     Mailing Address          :  South Denes, Great Yarmouth, Norfolk, NR30 3NU
     Primary Contact
       Contact Name           : Dr P.Shardlow
       Telephone (primary)    : +44 (0)1493 857011
       Telephone (secondary)  : -
       Fax                    : +44 (0)1493 852420
       E-mail                 : Shardlowp@racal-survey.co.uk
     Secondary Contact
       Contact Name           : Dr G. Whitmore
       Telephone (primary)    : +44 (0)1493 857011
       Telephone (secondary)  : -
       Fax                    :  +44 (0)1493 852420
       E-mail                 : Whimoreg@racal-survey.co.uk
     Additional Information   :  


10.  Responsible Agency (if different from 9.)

     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)


11.  More Information

     URL for More Information :
     Hardcopy on File
       Site Map               : (Y)
       Site Diagram           : (Y)
       Horizon Mask           : (Y)
       Monument Description   : (Y)
       Site Pictures          : (Y)
     Additional Information   : 

Antenna Graphics with Dimensions


Trimble: DORNE MARGOLIN TRIM


       <--                      0.381                       -->
                                -----
                            /     +     \                       <--  
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
   TGP:  Top of Ground Plane  BGP:  Bottom of Ground Plane
   TPA:  Top of Preamplifier  BPA:  Bottom of Preamplifier

12.  Local Events Possibly Affecting Computed Position

12.x  Date                    : (dd-MMM-yyyy hh:mm UT)
      Event                   : (multiple lines)