WSRT Site Information Form
     International GPS Service for Geodynamics


0.   Form

     Prepared by (full name)  : Danny van Loon
     Date Prepared            : 01-JUN-1997
     Report Type              : NEW
     Prepared Using           :


1.   Site Identification of the GPS Monument

     Site Name                : Westerbork Synthesis Radio Telescope
     Four Character ID        : WSRT
     Monument Inscription     : --
     IERS DOMES Number        : 13506M005
     CDP Number               : not assigned
     Date Installed           : 23-MAY-1997 12:00 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                  : (multiple lines)
     Additional Information   : WSRT is operating under responsibility of
                              : the Institute for Earth-Oriented Space research
                              : (DEOS) of the Delft University of Technology.
                              : Netherlands Triangulation Network No. RD 179811
                              : Netherlands Height System No. NAP 0A-2628


2.   Site Location Information

     City or Town             : Westerbork
     State or Province        : Drente
     Country                  : The Netherlands
     Tectonic Plate           : Eurasian
     Approximate Position
       X coordinate (m)       : 3828739
       Y coordinate (m)       :  443305
       Z coordinate (m)       : 5064887
       Latitude (deg)         : 52.9146 N
       Longitude (deg)        :  6.6045 E
       Elevation (m)          : 86.000
     Additional Information   :


3.   GPS Receiver Information

3.1  Receiver Type            : ROGUE SNR-12 RM
     Serial Number            : T209
     Firmware Version         : Version 3.2.32.1
     Date Installed           : 01-JUN-1997 -
     Date Removed             :
     Additional Information   :


4.   GPS Antenna Information

4.1  Antenna Type             : DORNE MARGOLIN T
     Serial Number            : S/N 273
     Antenna Height (m)       : 0.3795
     Antenna Reference Point  : ARP
     Degree Offset from North : 0
     Antenna Radome Type      : VANLOON DESIGN
     Date Installed           : 01-JUN-1997 12:00 UT
     Date Removed             :
     Additional Information   :


5.   Local Site Ties

5.1  Monument Name            :
     Site Ref CDP Number      :
     Site Ref Domes Number    :
     Differential Components from GPS Mark to Site Reference (ITRS)
       dx (m)                 :
       dy (m)                 :
       dz (m)                 :
     Accuracy (mm)            :
     Date Measured            :
     Additional Information   :


6.   Frequency Standard

6.1  Standard Type            : H-MASER
       Frequency              :
       Effective Dates        : 01-JUN-1997 -
       Notes                  : Oscilloquartz Neuchatel Type LSRH H3
                                Stability 2E-14 / 1000 sec.

7.   Collocation Information

7.1  Instrumentation Type     :
       Status                 :
       Effective Dates        : (dd-MMM-yyyy - dd-MMM-yyyy)
       Notes                  :
                              :
                              :


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                   : Delft Institute for Earth-Oriented Space research (DEOS)
     Mailing Address          : Thijssweg 11
                              : Delft, The Netherlands
                              : 2629 JA
     Primary Contact
       Contact Name           : Danny van Loon
       Telephone (primary)    : (31) 15 2788137
       Telephone (secondary)  : (31) 570 672720
       Fax                    : (31) 15 2783711
       E-mail                 : vanloon@geo.tudelft.nl
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   : (multiple lines)


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               : X
       Site Diagram           : X
       Horizon Mask           : X
       Monument Description   : X
       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