BORK00DEU 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 : 2023-06-01
Report Type : UPDATE
If Update:
Previous Site Log : bork00deu_20230511.log
Modified/Added Sections : 11
1. Site Identification of the GNSS Monument
Site Name : Borkum
Four Character ID : BORK
Monument Inscription : 674
IERS DOMES Number : 14268M001
CDP Number : (A4)
Monument Description : CIRCULAR STEEL TUBE MOUNT
Height of the Monument : 1.5 m
Monument Foundation : SCREW ANCHORED ON WALL OF BUILDING
Foundation Depth : (m)
Marker Description : RIVET THREAD ON THE CIRCULAR STEEL TUBE
Date Installed : 2000-09-29T00:00Z
Geologic Characteristic : CENOZOIC QUATERNARY
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 : NO
Distance/activity : (multiple lines)
Additional Information : Antenna mounted with a special
: tribrach on a rivet thread of a
: circular tube of steel, 1.5 m
: length. Fixed on the gable of
: a building (WSA Emden), 10.0 m
: above the ground. Marked in 1999.
2. Site Location Information
City or Town : Borkum
State or Province : Lower Saxony (Niedersachsen)
Country : Germany
Tectonic Plate : EURASIAN
Approximate Position (ITRF)
X coordinate (m) : 3770134.807
Y coordinate (m) : 446054.238
Z coordinate (m) : 5108090.925
Latitude (N is +) : +533349.10
Longitude (E is +) : +0064450.79
Elevation (m,ellips.) : 54.2
Additional Information : Mentioned ETRF89 epoch 89.0
: coordinates are derived from
: the network adjustment of the
: Tide Gauge GPS campaign PEGEL99.
: The elevation refers to the
: surface of the tube.
: Island in the Northsea.
3. GNSS Receiver Information
3.1 Receiver Type : TRIMBLE 4000SSI
Satellite System : GPS
Serial Number : 3752A21439
Firmware Version : 7.29
Elevation Cutoff Setting : 0 deg
Date Installed : 2000-09-29T00:00Z
Date Removed : 2000-11-09T09:30Z
Temperature Stabiliz. : none
Additional Information : Firmware removed because of
: the 12-channel TRIMBLE 4000SSI
: problems, announced on
: 04-FEB-2000 via CANSPACE by Mike
: Jackson from UNAVCO.
3.2 Receiver Type : TRIMBLE 4000SSI
Satellite System : GPS
Serial Number : 3752A21439
Firmware Version : 7.19
Elevation Cutoff Setting : 0 deg
Date Installed : 2000-11-09T09:30Z
Date Removed : 2001-04-18T14:00Z
Temperature Stabiliz. : none
Additional Information : (multiple lines)
3.3 Receiver Type : TRIMBLE 4700
Satellite System : GPS
Serial Number : 0220219865
Firmware Version : 00130|00000|00100
Elevation Cutoff Setting : 0 deg
Date Installed : 2001-04-18T14:00Z
Date Removed : 2005-01-13T11:05Z
Temperature Stabiliz. : none
Additional Information : (multiple lines)
3.4 Receiver Type : TRIMBLE 4700
Satellite System : GPS
Serial Number : 0220219865
Firmware Version : 00141|00000|00100
Elevation Cutoff Setting : 0 deg
Date Installed : 2005-01-13T11:05Z
Date Removed : 2007-06-04
Temperature Stabiliz. : none
Additional Information : Firmware update
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 : TRM29659.00 SNOW
Serial Number : 0220187547
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0540
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 : RG 214
Antenna Cable Length : 30 m
Date Installed : 2000-09-29T00:00Z
Date Removed : 2001-10-11T00:00Z
Additional Information : Antenna calibrated, IGS conform,
: by LGN.
: Antenna type calibrated
: absolute, field measurements,
: by Geo++ GmbH, Garbsen.
: PCV are available at 11.
: Trimble Antenna TRM29659.00
: with white conical Ashtech
: Radome SNOW.
4.2 Antenna Type : TRM29659.00 SNOW
Serial Number : 0220187547
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0530
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 : RG 214
Antenna Cable Length : 30 m
Date Installed : 2001-10-11T00:00Z
Date Removed : 2003-06-02T12:20Z
Additional Information : New measurement with higher
: accuracy led to the change of
: the antenna height by 1 mm.
: There was no variation of the
: antenna itself.
: L2 interferences of the TRM29659.00
: SNOW have produced decreasing data
: quantities below 15 degree elevation
: since 2003-03-19.
4.3 Antenna Type : TRM33429.20+GP NONE
Serial Number : 0220226150
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0530
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : RG 214
Antenna Cable Length : 30 m
Date Installed : 2003-06-02T12:21Z
Date Removed : 2003-07-01T09:00Z
Additional Information : Antenna individual calibrated
: absolute, field measurements,
: by Geo++ GmbH, Garbsen.
4.4 Antenna Type : TRM29659.00 SNOW
Serial Number : 0220180416
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0530
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 : RG 214
Antenna Cable Length : 30 m
Date Installed : 2003-07-01T10:02Z
Date Removed : 2007-06-04
Additional Information : Antenna individual calibrated
: absolute, field measurements,
: by Institut fuer Erdmessung IfE,
: University of Hannover, PCV are
: available at 11.
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 : 2000-09-29/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.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.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.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 :
Hardcopy on File
Site Map : (Y or URL)
Site Diagram : (Y or URL)
Horizon Mask : (Y or URL)
Monument Description : Y
Site Pictures : Y
Additional Information : (multiple lines)
Antenna Graphics with Dimensions
ANTENNA DIMENSIONS
------------------
Pictures for most of the antennas given here are available at the
NGS on the WWW page:
http://www.grdl.noaa.gov/GPS/PROJECTS/ANTCAL/antcal.html
The L1 and L2 antenna phase center offsets given in these drawings
here are manufacturer values and should not be used anymore. The
official IGS set of mean offsets and elevation-dependent phase center
variations are given in the file IGS_01.PCV.
TRM29659.00
with white concical Ashtech Dome SNOW
from 2000-09-29 until 2003-06-02
-----
/ + \ <-- 0.128 L2
| + | <-- 0.110 L1
+--------------------------------------------------+ <-- 0.102 TCR
| |
| |
| |
| |
+-+--------------------------------------------------+-+ <-- 0.038
+-------------------+-------------+--------------------+ <-- 0.035 BCR
| |
=| |
+------x------+ <-- 0.000 BPA=ARP
<-- 0.381 -->
TRM33429.20+GP
without Dome
from 2003-06-02 until 2003-07-01
----+---- <-- 0.0740 L1
/ + \ <-- 0.0703 L2
++----------------+-----------------+-----------------++ <-- 0.0631 TGP
++---------------+-------------------+----------------++ <-- 0.0596 BGP
| |
| |
| |
+-------x-------+ <-- 0.000 ARP=BPA
<-- 0.4668 --> INNER EDGE
<-- 0.4826 --> OUTER EDGE
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
TRM29659.00
with white concical Ashtech Dome SNOW
from 2003-07-01
-----
/ + \ <-- 0.128 L2
| + | <-- 0.110 L1
+--------------------------------------------------+ <-- 0.102 TCR
| |
| |
| |
| |
+-+--------------------------------------------------+-+ <-- 0.038
+-------------------+-------------+--------------------+ <-- 0.035 BCR
| |
=| |
+------x------+ <-- 0.000 BPA=ARP
<-- 0.381 -->
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
