URUM Site Information Form
     International GPS Service for Geodynamics


0.   Form

     Prepared by (full name)  : Juergen Neumeyer (GFZ-Potsdam)
                                Wu Junli (SBSM, Beijing)
     Date Prepared            : 30-SEP-1999
     Report Type              : UPDATE
     Prepared Using           :


1.   Site Identification of the GPS Monument

     Site Name                : Urumgi, People Republic of China
     Four Character ID        : URUM
     Monument Inscription     : Pillar
     IERS DOMES Number        : 21612M001
     CDP Number               :
     Date Installed           : 01-APR-1998
     Geologic Characteristic  : Bedrock
       Bedrock Type           :
       Bedrock Condition      :
       Fracture Spacing       :
       Notes                  :
     Additional Information   : concrete pillar


2.   Site Location Information

     City or Town             : Urumqi
     State or Province        : Xinjiang
     Country                  : China
     Tectonic Plate           : Eurasian Plate
     Approximate Position
       X coordinate (m)       :  193030.8
       Y coordinate (m)       : 4606851.3
       Z coordinate (m)       : 4393311.4
       Latitude (deg)         :  43.59 N
       Longitude (deg)        :  87.63 E
       Elevation (m)          :  856.1
     Additional Information   :


3.   GPS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8000
     Serial Number            : 246
     Firmware Version         : 3.2
     Date Installed           : 01-APR-1998
     Date Removed             : 22-AUG-1999
     Additional Information   :

3.2  Receiver Type            : AOA SNR-8000 ACT
     Serial Number            : 269
     Firmware Version         : 3.3.32.3
     Date Installed           : 24-SEP-1999
     Date Removed             :
     Additional Information   :

4.   GPS Antenna Information

4.1  Antenna Type             : AOAD/M_T
     Serial Number            : 366
     Antenna Height (m)       : 0.046
     Antenna Reference Point  : ARP
     Degree Offset from North : 0
     Antenna Radome Type      : No Radome
     Date Installed           : 01-APR-1998
     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            : INTERNAL
       Frequency              :
       Effective Dates        :
       Notes                  :


7.   Collocation Information

7.1  Instrumentation Type     :
       Status                 :
       Effective Dates        :
       Notes                  :


8.   Meteorological Instrumentation

8.1  Humidity Sensor Model    : HC 500
       Manufacturer           : TimeTech/Gresinger
       Data Frequency         : 10 min
       Accuracy (% rel h)     : 1
       Effective Dates        :
       Notes                  : The sensor is part of the meteorological

                              : station TM 200, manufactured byTimeTech,

                              : Stuttgart, Germany

8.2  Pressure Sensor Model    : PTB100B
       Manufacturer           : Vaisala
       Data Frequency         : 10 min
       Accuracy (mbar)        : 0.5
       Height Diff to GPS (m) : 0
       Effective Dates        :
       Notes                  : The sensor is part of the meteorological

                              : station TM 200, manufactured byTimeTech,

                              : Stuttgart, Germany

8.3  Temperature Sensor Model : PT100
       Manufacturer           : TimeTech
       Data Frequency         : 10 min
       Accuracy (deg C)       : 0.25
       Effective Dates        :
       Notes                  : The sensor is part of the meteorological

                              : station TM 200, manufactured byTimeTech,

                              : Stuttgart, Germany

8.4  Water Vapor Radiometer   : Not available
       Manufacturer           :
       Distance to GPS (m)    :
       Elev Diff to GPS (m)   :
       Effective Dates        :
       Notes                  :

8.5  Other Instrumentation    :


9.   On-Site, Point of Contact Agency Information

     Agency                   : State Bureau of Surveying and Mapping
(SBSM)
     Mailing Address          : Zizhuyan Baishengcun 1, Beijing, P.R.
China, 100044
     Primary Contact
       Contact Name           : Wu Junli
       Telephone (primary)    : +86-10-6846-0691
       Telephone (secondary)  :
       Fax                    : +86-10-6831-1554
       E-mail                 : "gps group"<gps@nsdi.gov.cn
     Secondary Contact
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   :


10.  Responsible Agency (if different from 9.)

     Agency                   : GeoForschungsZentrum Potsdam
     Mailing Address          : Telegrafenberg A-17, D-14473 Potsdam,
Germany
     Primary Contact
       Contact Name           : Dr. Juergen Neumeyer
       Telephone (primary)    : +49-331-2881135
       Telephone (secondary)  :
       Fax                    : +49-331-2881111
       E-mail                 : neum@gfz-potsdam.de
     Secondary Contact
       Contact Name           : Thomas Nischan
       Telephone (primary)    : +49-331-2881170
       Telephone (secondary)  :
       Fax                    : +49-331-2881111
       E-mail                 : nisn@gfz-potsdam.de
     Additional Information   :


11.  More Information

     URL for More Information :
     Hardcopy on File
       Site Map               :
       Site Diagram           :
       Horizon Mask           : No obstruction above 0 degrees
       Monument Description   :
       Site Pictures          :
     Additional Information   :


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