ISTA00TUR Site Information Form (site log v2.0)
     International GNSS Service
     See Instructions at:
       https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt


0.   Form

     Prepared by (full name)  : GOW Operator (gnss_wtz@bkg.bund.de)
     Date Prepared            : 2023-05-11
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : ista00tur_20230209.log
      Modified/Added Sections : 11, 12, 13


1.   Site Identification of the GNSS Monument

     Site Name                : Istanbul / Turkey
     Nine Character ID        : ISTA00TUR
     Monument Inscription     : 
     IERS DOMES Number        : 20807M001
     CDP Number               : (A4)
     Monument Description     : CONCRETE PILLAR ON THE ROOF
       Height of the Monument : 1.122 m
       Monument Foundation    : CONCRETE PILLAR ANCHORED TO THE ROOF
       Foundation Depth       : (m)
     Marker Description       : SURVEY MARKER BOLT WITH THREAD
     Date Installed           : 1999-12-11T00:00Z
     Geologic Characteristic  : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc)
       Bedrock Type           : (IGNEOUS/METAMORPHIC/SEDIMENTARY)
       Bedrock Condition      : (FRESH/JOINTED/WEATHERED)
       Fracture Spacing       : (0 cm/1-10 cm/11-50 cm/51-200 cm/over 200 cm)
       Fault zones nearby     : (YES/NO/Name of the zone)
         Distance/activity    : (multiple lines)
     Additional Information   : The concrete GPS pillar is
                              : anchored on the roof of the
                              : building for the Civil Engineering
                              : Faculty in the Istanbul Technical
                              : University.
                              : The top of the pillar is 24.037 m
                              : above the ground.


2.   Site Location Information

     City or Town             : Istanbul
     State or Province        : N/A
     Country or Region        : TUR
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 4208830.460
       Y coordinate (m)       : 2334850.140
       Z coordinate (m)       : 4171267.180
       Latitude (N is +)      : +410616.01
       Longitude (E is +)     : +0290109.62
       Elevation (m,ellips.)  : 147.2
     Additional Information   : (multiple lines)


3.   GNSS Receiver Information

3.1  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP02295
     Firmware Version         : 1K00-1D04
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 1999-12-11T00:00Z
     Date Removed             : 2007-11-08T11:45Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Ashtech GPS Receiver XII,
                              : Mdl. Z-12,
                              : P/N 700845-10 (E)

3.2  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP00839
     Firmware Version         : 1K00-1D04
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2007-11-08T11:50Z
     Date Removed             : 2016-05-04T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.3  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 3.22/6.522
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-05-09T07:00Z
     Date Removed             : 2016-07-13T11:29Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.4  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 4.00/6.522
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-07-13T11:30Z
     Date Removed             : 2016-11-10T12:35Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.5  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 4.02/6.522
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-11-10T12:40Z
     Date Removed             : 2017-02-07T10:45Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.6  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 4.10/6.523
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-02-07T10:50Z
     Date Removed             : 2017-05-04T11:13Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.7  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 4.11/6.523
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-05-04T11:16Z
     Date Removed             : 2018-12-02T18:05Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.8  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 4.31/6.712
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-12-02T18:20Z
     Date Removed             : 2021-05-26T07:30Z
     Temperature Stabiliz.    : none
     Additional Information   : FW 4.31/6.712 is a firmware version released on
                              : demand to enable optimized all in view tracking
                              : on GR10/GR25 receivers, where this is
                              : specifically required. Contact Leica Geosystems
                              : Heerbrugg for further information.

3.9  Receiver Type            : LEICA GR25
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1831540
     Firmware Version         : 4.50/6.713
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-05-26T08:05Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : FW 4.50/6.713 is a firmware version released on
                              : demand to enable optimized all in view tracking
                              : on GR10/GR25 receivers, where this is
                              : specifically required. Contact Leica Geosystems
                              : Heerbrugg for further information.

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS)
     Serial Number            : (A20, but note the first A5 is used in SINEX)
     Firmware Version         : (A11)
     Elevation Cutoff Setting : (deg)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Temperature Stabiliz.    : (none or tolerance in degrees C)
     Additional Information   : (multiple lines)


4.   GNSS Antenna Information

4.1  Antenna Type             : ASH700936D_M    SNOW
     Serial Number            : CR13556
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0610
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : SNOW
     Radome Serial Number     : 
     Antenna Cable Type       : RG214
     Antenna Cable Length     : 30 m
     Date Installed           : 1999-12-11T00:00Z
     Date Removed             : 2016-05-04T00:00Z
     Additional Information   : Ashtech Choke Ring Antenna
                              : P/N 700936 (D) with Dome

4.2  Antenna Type             : LEIAR25.R4      LEIT
     Serial Number            : 726339
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0610
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : LEIT
     Radome Serial Number     : 
     Antenna Cable Type       : ECCOFLEX 15 PLUS
     Antenna Cable Length     : 50 m
     Date Installed           : 2016-05-09T07:00Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Additional Information   : (multiple lines)

4.x  Antenna Type             : (A20, from rcvr_ant.tab; see instructions)
     Serial Number            : (A*, but note the first A5 is used in SINEX)
     Antenna Reference Point  : (BPA/BCR/XXX from "antenna.gra"; see instr.)
     Marker->ARP Up Ecc. (m)  : (F8.4)
     Marker->ARP North Ecc(m) : (F8.4)
     Marker->ARP East Ecc(m)  : (F8.4)
     Alignment from True N    : (deg; + is clockwise/east)
     Antenna Radome Type      : (A4 from rcvr_ant.tab; see instructions)
     Radome Serial Number     : 
     Antenna Cable Type       : (vendor & type number)
     Antenna Cable Length     : (m)
     Date Installed           : (CCYY-MM-DDThh:mmZ)
     Date Removed             : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


5.   Surveyed Local Ties

5.x  Tied Marker Name         : 
     Tied Marker Usage        : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
     Tied Marker CDP Number   : (A4)
     Tied Marker DOMES Number : (A9)
     Differential Components from GNSS Marker to the tied monument (ITRS)
       dx (m)                 : (m)
       dy (m)                 : (m)
       dz (m)                 : (m)
     Accuracy (mm)            : (mm)
     Survey method            : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
     Date Measured            : (CCYY-MM-DDThh:mmZ)
     Additional Information   : (multiple lines)


6.   Frequency Standard

6.1  Standard Type            : INTERNAL
       Input Frequency        : (if external)
       Effective Dates        : 1999-12-11/CCYY-MM-DD
       Notes                  : (multiple lines)

6.x  Standard Type            : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc)
       Input Frequency        : (if external)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


7.   Collocation Information

7.x  Instrumentation Type     : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc)
       Status                 : (PERMANENT/MOBILE)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)


8.   Meteorological Instrumentation

8.1.1  Humidity Sensor Model  : MP408A-T4-W4W
       Manufacturer           : ROTRONIC
       Serial Number          : 21206 010
       Data Sampling Interval :   900 sec
       Accuracy (% rel h)     : 1.5 % rel h
       Aspiration             : CAPACITANCE PROBE
       Height Diff to Ant     : -1.15 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2002-06-10/2016-05-12
       Notes                  : Humidity Sensor is 1.15 m
                              : above the antenna

8.1.2  Humidity Sensor Model  : WXT520
       Manufacturer           : VAISALA
       Serial Number          : L4310378
       Data Sampling Interval :   900 sec
       Accuracy (% rel h)     : 3 % rel h
       Aspiration             : Capacitive thinfilm polymer
       Height Diff to Ant     : -1.15 m
       Calibration date       : 2015-10-23
       Effective Dates        : 2016-05-12/CCYY-MM-DD
       Notes                  : The capacitive thinfilm polymer
                              : sensor HU?ICAP 180 for humidity
                              : measurements is 1.15 m above the
                              : antenna

8.1.x  Humidity Sensor Model  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy (% rel h)     : (% rel h)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.2.1  Pressure Sensor Model  : APS 9215
       Manufacturer           : L-TEC LEIBENGUTH
       Serial Number          : 0501 4599A
       Data Sampling Interval : 900 sec
       Accuracy               : 1 hPa
       Height Diff to Ant     : 3.52 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2002-06-10/2016-05-12
       Notes                  : Pressure Sensor is 3.52 m
                              : below the antenna

8.2.2  Pressure Sensor Model  : WXT520
       Manufacturer           : VAISALA
       Serial Number          : L4310378
       Data Sampling Interval : 900 sec
       Accuracy               : 1 hPa
       Height Diff to Ant     : -1.15 m
       Calibration date       : 2015-10-23
       Effective Dates        : 2016-05-12/CCYY-MM-DD
       Notes                  : The capacitive silicon sensor
                              : BAROCAP for pressure measurements
                              : is 1.15 m above the antenna

8.2.x  Pressure Sensor Model  : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (hPa)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.3.1  Temp. Sensor Model     : MP408A-T4-W4W
       Manufacturer           : ROTRONIC
       Serial Number          : 21206 010
       Data Sampling Interval : 900 sec
       Accuracy               : 0.3 deg C
       Aspiration             : PLATINUM PROBE
       Height Diff to Ant     : -1.15 m
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : 2002-06-10/2016-05-12
       Notes                  : Temperature Sensor is
                              : 1.15 m above the antenna

8.3.2  Temp. Sensor Model     : WXT520
       Manufacturer           : VAISALA
       Serial Number          : L4310378
       Data Sampling Interval : 900 sec
       Accuracy               : 0.3 deg C
       Aspiration             : Capacitive ceramic
       Height Diff to Ant     : -1.15 m
       Calibration date       : 2015-10-23
       Effective Dates        : 2016-05-12/CCYY-MM-DD
       Notes                  : The capacitive ceramic sensor
                              : THERMOCAP for air temperature
                              : is 1.15 m above the antenna

8.3.x  Temp. Sensor Model     : 
       Manufacturer           : 
       Serial Number          : 
       Data Sampling Interval : (sec)
       Accuracy               : (deg C)
       Aspiration             : (UNASPIRATED/NATURAL/FAN/etc)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.4.x  Water Vapor Radiometer : 
       Manufacturer           : 
       Serial Number          : 
       Distance to Antenna    : (m)
       Height Diff to Ant     : (m)
       Calibration date       : (CCYY-MM-DD)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Notes                  : (multiple lines)

8.5.x  Other Instrumentation  : (multiple lines)


9.   Local Ongoing Conditions Possibly Affecting Computed Position

9.1.x  Radio Interferences    : (TV/CELL PHONE ANTENNA/RADAR/etc)
       Observed Degradations  : (SN RATIO/DATA GAPS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.2.x  Multipath Sources      : (METAL ROOF/DOME/VLBI ANTENNA/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)

9.3.x  Signal Obstructions    : (TREES/BUILDINGS/etc)
       Effective Dates        : (CCYY-MM-DD/CCYY-MM-DD)
       Additional Information : (multiple lines)


10.  Local Episodic Effects Possibly Affecting Data Quality

10.x  Date                    : (CCYY-MM-DD/CCYY-MM-DD)
      Event                   : (TREE CLEARING/CONSTRUCTION/etc)


11.  On-Site, Point of Contact Agency Information

     Agency                   : Bundesamt fuer Kartographie und Geodaesie
                              : Department of Geodaesie
     Preferred Abbreviation   : BKG
     Mailing Address          : Richard-Strauss-Allee 11
                              : D-60598 Frankfurt a.M.
                              : Germany
     Primary Contact
       Contact Name           : GOW Operator
       Telephone (primary)    : +49 9941 6030
       Telephone (secondary)  : +49 9941 603122
       Fax                    : +49 9941 603222
       E-mail                 : gnss_wtz@bkg.bund.de
     Secondary Contact
       Contact Name           : BKG GNSS Data Center
       Telephone (primary)    : +49 69 6333274
       Telephone (secondary)  : +49 69 63331
       Fax                    : +49 69 6333425
       E-mail                 : bkg-gdc@bkg.bund.de
     Additional Information   : (multiple lines)




12.  Responsible Agency (if different from 11.)

     Agency                   : (multiple lines)
     Preferred Abbreviation   : (A10)
     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)


13.  More Information

     Primary Data Center      : BKG
     Secondary Data Center    : BEV
     URL for More Information : https://www.bkg.bund.de
     Hardcopy on File
       Site Map               : (Y or URL)
       Site Diagram           : (Y or URL)
       Horizon Mask           : (Y or URL)
       Monument Description   : (Y or URL)
       Site Pictures          : Y
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

ASH700936D_M
with ASHTECH white conical Radome SNOW
from 1999-12-11 until 2016-05-04


                         -----
                     /     +     \                        <--  0.128 L2
                    |      +      |                       <--  0.110 L1
  +--------------------------------------------------+    <--  0.102 TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <--  0.038
+-------------------+-------------+--------------------+  <--  0.035 BCR
                    |             |
                   =|             |
                    +------x------+                       <--  0.000 BPA=ARP

<--                      0.381                       -->


LEIAR25.R4
with LEIT Radome
from 2016-05-09
                       +-------+                          <--  0.1995
                      /         \
                +---+-------------+---+                   <--  0.1606  TCR
                |                     |
             |---------------------------|
          |---------------------------------|
       |---------------------------------------|
    +---------------------------------------------+
    |                                             |
    |                                             |
  +-+---------------------------------------------+-+
  +-----------------+-------------+-----------------+     <--  0.0320  BCR
                    |             |
                    |             |
                    +------x------+                       <--  0.0000  BPA=ARP

  <--                    0.3802                   -->


   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
   TOP: Top of Pole