ISTA Site Information Form
     International GPS Service for Geodynamics


0.   Form

     Prepared by (full name)  : Dr. Wolfgang Schlueter
                              : Klaus Roettcher
                              : Uwe Hessels
                              : Rudolf Stoeger
     Date Prepared            : 21-DEC-1999
     Report Type              : NEW
     Prepared Using           :


1.   Site Identification of the GPS Monument

     Site Name                : Istanbul / Turkey
     Four Character ID        : ISTA
     Monument Inscription     : Survey Marker on Pillar
     IERS DOMES Number        : 20807M001
     CDP Number               : -
     Date Installed           : 11-DEC-1999  00:00
     Geologic Characteristic  : 
       Bedrock Type           : 
       Bedrock Condition      : 
       Fracture Spacing       : 
       Notes                  : 
       Additional information : 


2.   Site Location Information

     City or Town             : Istanbul
     State or Province        : 
     Country                  : Turkey
     Tectonic Plate           : Eurasian
     Approximate Position
       X coordinate (m)       : 4208830.46 
       Y coordinate (m)       : 2334850.14
       Z coordinate (m)       : 4171267.18
       Latitude (deg)         : 41.1044 N
       Longitude (deg)        : 29.0193 E
       Elevation (m)          : 147.24
     Additional Information   : 


3.   GPS Receiver Information

3.1  Receiver Type            : ASHTECH Z-XII3
     Serial Number            : LP02295
     Firmware Version         : 1K00-1D04
     Date Installed           : 11-DEC-1999 00:00 UT
     Date Removed             : 
     Additional Information   : Ashtech GPS Receiver XII,
                              : Mdl. Z-12, 
                              : P/N 700845-10 (E)


4.   GPS Antenna Information

4.1  Antenna Type             : ASH700936D_M    SNOW
     Serial Number            : CR13556
     Antenna Height (m)       : 0.061 m
     Antenna Reference Point  : ARP
     Degree Offset from North : -
     Antenna Radome Type      : SNOW
     Date Installed           : 11-DEC-1999 00:00 UT
     Date Removed             :
     Additional Information   : Ashtech Choke Ring Antenna
                              : P/N 700936 (D) with Dome


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        : 11-DEC-1999 - now
       Notes                  : 


7.   Collocation Information

7.1  Instrumentation Type     : 
       Status                 : 
       Effective Dates        : 
       Notes                  :


8.   Meteorological Instrumentation

8.1  Humidity Sensor Model    : 
       Manufacturer           : 
       Data Frequency         : 
       Accuracy (% rel h)     : 
       Effective Dates        : 
       Notes                  : 

8.2  Pressure Sensor Model    : 
       Manufacturer           : 
       Data Frequency         : 
       Accuracy (mbar)        : 
       Height Diff to GPS (m) : 
       Effective Dates        : 
       Notes                  : 

8.3  Temperature Sensor Model : 
       Manufacturer           : 
       Data Frequency         : 
       Accuracy (deg C)       : 
       Effective Dates        : 
       Notes                  : 

8.4  Water Vapor Radiometer   : 
       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                   : ITU Civil Engineering
                              : Faculty
     Mailing Address          : Division of Geodesy
                              : ITU Ayazaga Kampusu
                              : TR-80626 Maslak-Istanbul
                              : Turkey
     Primary Contact
       Contact Name           : Prof. Dr. Ayan
       Telephone (primary)    : 0090-212-2853825
       Telephone (secondary)  : 0090-212-2853824
       Fax                    : 0090-212-2856587
       E-mail                 : 
     Second Contact           : DOC. Dr. Rahmi N. Celik
       Telephone (primary)    : 0090-212-2853822
       Telephone (secondary)  : 
       Fax                    : 0090-212-2856587
       E-mail                 : celik@itu.edu.tr
                              : denli@sariyer.cc.itu.edu.tr
     Additional Information   : 


10.  Responsible Agency (if different from 9.)

     Agency                   : Bundesamt fuer Kartographie
                              : und Geodaesie
                              : Fundamentalstation Wettzell
     Mailing Address          : Sackenrieder Strasse 25
                              : D-93444 Koetzting
                              : Germany
     Primary Contact
       Contact Name           : Dr. Wolfgang Schlueter
       Telephone (primary)    : 0049-9941-603107
       Telephone (secondary)  : 0049-9941-6030
       Fax                    : 0049-9941-603222
       E-mail                 : schlueter@wettzell.ifag.de
       Contact Name           : Klaus Roettcher
       Telephone (primary)    : 0049-9941-603115
       Telephone (secondary)  : 0049-9941-6030
       Fax                    : 0049-9941-603222
       E-mail                 : roettcher@wettzell.ifag.de
       Contact Name           : Uwe Hessels
       Telephone (primary)    : 0049-9941-603204
       Telephone (secondary)  : 0049-9941-6030
       Fax                    : 0049-9941-603222
       E-mail                 : hessels@wettzell.ifag.de
       Contact Name           : Rudi Stoeger
       Telephone (primary)    : 0049-9941-603114
       Telephone (seconday)   : 0049-9941-6030
       Fax                    : 0049-9941-603222
       E-mail                 : stoeger@wettzell.ifag.de
     Secondary Contact        
       Contact Name           :
       Telephone (primary)    :
       Telephone (secondary)  :
       Fax                    :
       E-mail                 :
     Additional Information   : 

11.  More Information

     URL for More Information :  
     Hardcopy on File
       Site Map               : 
       Site Diagram           : 
       Horizon Mask           : 
       Monument Description   : Y
       Site Pictures          : Y
     Additional Information   : 
     Antenna Graphics with Dimensions


                      ASH700936D_M
             (with white conical Radome SNOW)

                         -----
                     /     +     \                        <--  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