ISTA00TUR Site Information Form (site log)
International GNSS Service
See Instructions at:
https://files.igs.org/pub/station/general/sitelog_instr.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
Four Character ID : ISTA
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 : Turkey
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
