SPT000SWE 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) : SWEPOS Control Centre
Date Prepared : 2022-12-08
Report Type : UPDATE
If Update:
Previous Site Log : spt000swe_20220506.log
Modified/Added Sections : 3.17, 3.18
1. Site Identification of the GNSS Monument
Site Name : SP Boras
Nine Character ID : SPT000SWE
Monument Inscription :
IERS DOMES Number : 10425M001
CDP Number : (A4)
Monument Description : PILLAR
Height of the Monument : (m)
Monument Foundation : (STEEL RODS, CONCRETE BLOCK, ROOF, etc)
Foundation Depth : (m)
Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc)
Date Installed : 1995-12-01T00:00Z
Geologic Characteristic : BEDROCK
Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY)
Bedrock Condition : FRESH
Fracture Spacing : over 200 cm
Fault zones nearby : (YES/NO/Name of the zone)
Distance/activity : (multiple lines)
Additional Information : Swedish permanent GNSS Network (SWEPOS)
: Mark at the centre of a horizontal metal plate
: embedded on the concrete monument.
: GABBRO bedrock.
: The same monument and antenna has been used for
: the IGEX/IGLOS-site SP0G up to 2003-08-19.
2. Site Location Information
City or Town : Boras
State or Province : N/A
Country or Region : SWE
Tectonic Plate : EURASIAN
Approximate Position (ITRF)
X coordinate (m) : 3328984.813
Y coordinate (m) : 761910.066
Z coordinate (m) : 5369033.475
Latitude (N is +) : +574253.84
Longitude (E is +) : +0125328.84
Elevation (m,ellips.) : 219.9
Additional Information : SWEREF 99 (Swedish realisation of ETRS89).
3. GNSS Receiver Information
3.1 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 603
Firmware Version : 1F00
Elevation Cutoff Setting : 10 deg
Date Installed : 1995-12-14T00:00Z
Date Removed : 1996-06-16T00:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Full S/N 04603.
: Approximate dates for installation and removal.
3.2 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 941
Firmware Version : 1G00
Elevation Cutoff Setting : 10 deg
Date Installed : 1996-06-17T00:00Z
Date Removed : 1997-04-21T00:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Full S/N 700570B04941.
: Approximate dates for installation and removal.
3.3 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 941
Firmware Version : 1G00
Elevation Cutoff Setting : 5 deg
Date Installed : 1997-04-21T00:00Z
Date Removed : 1997-12-16T00:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Full S/N 700570B04941.
: Approximate dates for installation and removal.
3.4 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 941
Firmware Version : 1I00
Elevation Cutoff Setting : 5 deg
Date Installed : 1997-12-17T00:00Z
Date Removed : 1998-07-09T00:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Full S/N 700570B04941.
: Approximate dates for installation and removal.
: Secondary receiver on site was possibly
: ASHTECH Z-XII3, S/N 837 (LP02837).
3.5 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 941
Firmware Version : CB00
Elevation Cutoff Setting : 5 deg
Date Installed : 1998-07-10T00:00Z
Date Removed : 1999-08-24T00:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Full S/N 700570B04941.
: Approximate dates for installation and removal.
: Secondary receiver on site was ASHTECH Z-XII3,
: S/N 837 (LP02837).
3.6 Receiver Type : ASHTECH Z-XII3
Satellite System : GPS
Serial Number : 941
Firmware Version : CC00
Elevation Cutoff Setting : 5 deg
Date Installed : 1999-08-25T00:00Z
Date Removed : 2001-09-05T00:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Full S/N 700570B04941.
: Approximate dates for installation and removal.
: Secondary receiver on site was ASHTECH Z-XII3,
: S/N 837 (LP02837).
3.7 Receiver Type : JPS LEGACY
Satellite System : GPS+GLO
Serial Number : MT311430635
Firmware Version : 1.9 Aug,11,1999 pl4
Elevation Cutoff Setting : 5 deg
Date Installed : 2001-09-06T00:00Z
Date Removed : 2003-06-23
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.8 Receiver Type : JPS LEGACY
Satellite System : GPS+GLO
Serial Number : MT311430635
Firmware Version : 2.3 May,13,2003 p1
Elevation Cutoff Setting : 5 deg
Date Installed : 2003-06-23
Date Removed : 2004-11-22T15:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Firmware upgrade.
3.9 Receiver Type : JPS LEGACY
Satellite System : GPS+GLO
Serial Number : MT311430635
Firmware Version : 2.3 Apr,28,2004 p4
Elevation Cutoff Setting : 5 deg
Date Installed : 2004-11-22T15:00Z
Date Removed : 2008-05-06T09:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : Firmware upgrade.
3.10 Receiver Type : JPS E_GGD
Satellite System : GPS+GLO
Serial Number : AFFE4GQHRLS
Firmware Version : 2.6.1 Jan,10,2008
Elevation Cutoff Setting : 5 deg
Date Installed : 2008-05-06T09:00Z
Date Removed : 2012-01-16T14:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.11 Receiver Type : JAVAD TRE_G3TH DELTA
Satellite System : GPS+GLO
Serial Number : 00319
Firmware Version : 3.3.5 Nov,16,2011
Elevation Cutoff Setting : 5 deg
Date Installed : 2012-01-16T14:00Z
Date Removed : 2014-01-14T17:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.12 Receiver Type : JAVAD TRE_G3TH DELTA
Satellite System : GPS+GLO
Serial Number : 00319
Firmware Version : 3.3.5 Nov,16,2011
Elevation Cutoff Setting : 0 deg
Date Installed : 2014-01-14T17:00Z
Date Removed : 2015-02-09T15:15Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.13 Receiver Type : JAVAD TRE_G3TH DELTA
Satellite System : GPS+GLO
Serial Number : 00319
Firmware Version : 3.5.6 Aug,14,2014
Elevation Cutoff Setting : 0 deg
Date Installed : 2015-02-09T15:15Z
Date Removed : 2015-11-17T10:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.14 Receiver Type : JAVAD TRE_G3TH DELTA
Satellite System : GPS+GLO
Serial Number : 00319
Firmware Version : 3.5.12 Nov,12,2015
Elevation Cutoff Setting : 0 deg
Date Installed : 2015-11-17T10:00Z
Date Removed : 2019-04-02T10:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.15 Receiver Type : SEPT POLARX5TR
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 3046430
Firmware Version : 5.2.0
Elevation Cutoff Setting : 0 deg
Date Installed : 2019-04-02T10:00Z
Date Removed : 2019-09-30T10:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.16 Receiver Type : SEPT POLARX5TR
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 3046430
Firmware Version : 5.3.0
Elevation Cutoff Setting : 0 deg
Date Installed : 2019-09-30T10:00Z
Date Removed : 2021-03-19T12:00Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.17 Receiver Type : SEPT POLARX5TR
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 3046430
Firmware Version : 5.4.0
Elevation Cutoff Setting : 0 deg
Date Installed : 2021-03-19T12:00Z
Date Removed : 2022-12-08T09:59Z
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
3.18 Receiver Type : SEPT POLARX5TR
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 3046430
Firmware Version : 5.5.0
Elevation Cutoff Setting : 0 deg
Date Installed : 2022-12-08T10:00Z
Date Removed : CCYY-MM-DDThh:mmZ
Temperature Stabiliz. : 23.0 +/- 1.0
Additional Information : (multiple lines)
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 : AOAD/M_T OSOD
Serial Number : 258
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0710
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : OSOD
Radome Serial Number :
Antenna Cable Type : Andrew Heliax LDF2-50
Antenna Cable Length : 70 m
Date Installed : 1995-12-01
Date Removed : 2016-08-23T07:15Z
Additional Information : (multiple lines)
4.2 Antenna Type : JNSCR_C146-22-1 OSOD
Serial Number : 00275
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0710
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : OSOD
Radome Serial Number :
Antenna Cable Type : Andrew Heliax LDF2-50
Antenna Cable Length : 70 m
Date Installed : 2016-08-23T07:15Z
Date Removed : 2020-08-13T08:30Z
Additional Information : (multiple lines)
4.3 Antenna Type : TRM59800.00 OSOD
Serial Number : 5025353801
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0710
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : OSOD
Radome Serial Number :
Antenna Cable Type : Andrew Heliax LDF2-50
Antenna Cable Length : 70 m
Date Installed : 2020-08-13T10:00Z
Date Removed : CCYY-MM-DDThh:mmZ
Additional Information : Microwave absorbing material Eccosorb is
: attached to the bottom of the chokering
: Outdoor part of cable is temperature stabilized,
: located in a pipe with circulating water
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
5.1 Tied Marker Name : Boras (BOR0)
Tied Marker Usage : LOCAL CONTROL
Tied Marker CDP Number : (A4)
Tied Marker DOMES Number : (A9)
Differential Components from GNSS Marker to the tied monument (ITRS)
dx (m) : 0.000 m
dy (m) : 0.000 m
dz (m) : 0.000 m
Accuracy (mm) : 0 mm
Survey method : TRILATERATION/TRIANGULATION
Date Measured : 1995-12-01T00:00Z
Additional Information : (multiple lines)
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 : EXTERNAL CESIUM
Input Frequency : 10 MHz
Effective Dates : 1995-12-01/2003-10-27
Notes : (multiple lines)
6.2 Standard Type : EXTERNAL H-MASER
Input Frequency : 5 MHz
Effective Dates : 2003-10-27/2008-03-18
Notes : Cesium replaced with Hydrogen Maser at
: 16:30 UT
6.3 Standard Type : EXTERNAL H-MASER
Input Frequency : 5 MHz
Effective Dates : 2008-03-18/2008-03-20
Notes : Unstable frequency due to maintenance
: work on the maser
6.4 Standard Type : EXTERNAL H-MASER
Input Frequency : 5 MHz
Effective Dates : 2008-03-20/2009-04-09
Notes : Hydrogen maser back to normal operation
6.5 Standard Type : EXTERNAL H-MASER
Input Frequency : 10 MHz
Effective Dates : 2009-04-09/2019-04-02
Notes : Prev. maser replaced due to unstable frequency
6.6 Standard Type : EXTERNAL H-MASER
Input Frequency : 10 MHz
Effective Dates : 2019-04-02/CCYY-MM-DD
Notes : Time and frequency from UTC(SP). H-Maser based
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
7.1 Instrumentation Type : GPS
Status : PERMANENT
Effective Dates : 1995-12-01/CCYY-MM-DD
Notes : BIPM, SWEPOS, and IGS receivers
: share the same pillar/antenna system.
: The GPS site SPT0 and the GPS/GLONASS
: site SP0G have been merged into site SPT0,
: equipped with a GPS/GLONASS receiver.
7.2 Instrumentation Type : ABSOLUTE GRAVITY
Status : MOBILE
Effective Dates : 2003-06-16/2003-06-17
Notes : (multiple lines)
7.3 Instrumentation Type : TIME
Status : PERMANENT
Effective Dates : 2003-10-21/CCYY-MM-DD
Notes : Ku band ground station for TWSTFT used for
: international comparison of UTC(SP)
7.4 Instrumentation Type : GNSS
Status : PERMANENT
Effective Dates : 2011-10-07/CCYY-MM-DD
Notes : EPN station SPT0
7.5 Instrumentation Type : ABSOLUTE GRAVITY
Status : MOBILE
Effective Dates : 2013-04-19/2013-04-21
Notes : Observation performed by Lantmateriet.
7.6 Instrumentation Type : GNSS
Status : PERMANENT
Effective Dates : 2018-01-01/CCYY-MM-DD
Notes : RIT1/SP06 connected to same antenna as SPT7
: Main receiver for UTC(SP)
7.7 Instrumentation Type : GNSS
Status : PERMANENT
Effective Dates : 2018-02-01/CCYY-MM-DD
Notes : RIT2/SP07 connected to same antenna as SPT0
: Time and frequency from UTC(SP). H-Maser based
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)
9.2.1 Multipath Sources : MULTIPATH REDUCTION
Effective Dates : 2007-06-08/2016-08-23
Additional Information : Microwave absorbing material Eccosorb was
: mounted around and beneath the antenna to
: reduce multipath.
9.2.2 Multipath Sources : RADOME HEATING
Effective Dates : 2009-09-30/CCYY-MM-DD
Additional Information : A fan system for removal of snow on the radome
: is installed. The fan heats the air under the
: radome.
9.2.3 Multipath Sources : TEMPORARY SCAFFOLD AROUND PILLAR
Effective Dates : 2016-08-18/2016-09-05
Additional Information : A scaffold was erected around the pillar for the
: antenna replacement that was carried out
: 2016-08-23.
9.2.4 Multipath Sources : MULTIPATH REDUCTION
Effective Dates : 2016-08-26/CCYY-MM-DD
Additional Information : Microwave absorbing material Eccosorb was
: mounted beneath the antenna to
: reduce multipath.
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 : Lantmäteriet, the Swedish mapping, cadastral
: and land registration authority
Preferred Abbreviation : LMV
Mailing Address : Lantmäteriet
: SE-801 82 Gävle
: Sweden
Primary Contact
Contact Name : SWEPOS Control Centre
Telephone (primary) : +46 26 63 37 53
Telephone (secondary) :
Fax :
E-mail : [email protected]
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
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
Horizon Mask : Y
Monument Description : Y
Site Pictures : Y
Additional Information : (multiple lines)
Antenna Graphics with Dimensions
TRM59800.00
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/ \
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+-------------------------------------------------+ <-- 0.1020 TCR
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+-+-------------------------------------------------+-+ <-- 0.0381
+-------------------+-------------+-------------------+ <-- 0.0350 BCR
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=| |
+------x------+ <-- 0.0000 BPA=ARP
RXC=NRP
<-- 0.3810 -->
