IRBE00LVA 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)  : LATPOS TEAM (latpos@lgia.gov.lv)
     Date Prepared            : 2024-08-26
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : irbe00lva_20220819.log
      Modified/Added Sections : 3.16, 3.17


1.   Site Identification of the GNSS Monument

     Site Name                : Irbene
     Nine Character ID        : IRBE00LVA
     Monument Inscription     : Forced centering antenna mount
     IERS DOMES Number        : 10726M001
     CDP Number               : NONE
     Monument Description     : Concreate pillar
       Height of the Monument : 5.13 m
       Monument Foundation    : Concreate
       Foundation Depth       : 2 m
     Marker Description       : Mark with 1mm hole
     Date Installed           : 1998-04-02T00:00Z
     Geologic Characteristic  : SAND
       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   : (multiple lines)


2.   Site Location Information

     City or Town             : Irbene
     State or Province        : Kurzeme
     Country or Region        : LVA
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 3183614.933
       Y coordinate (m)       : 1276707.563
       Z coordinate (m)       : 5359315.042
       Latitude (N is +)      : +573315.90
       Longitude (E is +)     : +0215107.18
       Elevation (m,ellips.)  : 45.8
     Additional Information   : (multiple lines)


3.   GNSS Receiver Information

3.1  Receiver Type            : ROGUE SNR-8000
     Satellite System         : GPS
     Serial Number            : 222
     Firmware Version         : 7.01
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 1998-04-02T00:00Z
     Date Removed             : 2004-08-20T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.2  Receiver Type            : TRIMBLE 4000ST
     Satellite System         : GPS
     Serial Number            : 00007361
     Firmware Version         : 1.26
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2004-08-20T00:00Z
     Date Removed             : 2010-08-31T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : rcvr change

3.3  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS
     Serial Number            : 457881
     Firmware Version         : 8.00
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2010-08-31T00:00Z
     Date Removed             : 2011-04-06T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : rcvr change

3.4  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 457881
     Firmware Version         : 8.00
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2011-04-06T00:00Z
     Date Removed             : 2015-05-12T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : GLONASS added

3.5  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 457881
     Firmware Version         : 9.20
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2015-05-12T00:00Z
     Date Removed             : 2016-02-23T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : FW upgrade

3.6  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 457881
     Firmware Version         : 9.20/6.112
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-02-23T00:00Z
     Date Removed             : 2016-04-05T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Elevation Cutoff set to 0 deg

3.7  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 457881
     Firmware Version         : 9.20/6.112
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-04-05T00:00Z
     Date Removed             : 2016-09-01T00:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : GALILEO added (only RINEX 3)

3.8  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 457881
     Firmware Version         : 9.20/6.112
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-09-01T00:00Z
     Date Removed             : 2016-09-07T10:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : GALILEO temporary excluded

3.9  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 457881
     Firmware Version         : 9.20/6.405
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-09-07T10:00Z
     Date Removed             : 2018-06-11T11:28Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : ME upgrade

3.10 Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 495308
     Firmware Version         : 9.20
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-06-11T12:00Z
     Date Removed             : 2018-06-20T11:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Reciever change

3.11 Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO+GAL
     Serial Number            : 457881
     Firmware Version         : 9.02/6.405
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-06-20T11:03Z
     Date Removed             : 2019-07-03
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : After reciever repair
                              : 
                              : Wrong receiver type - LEICA GR30, changed to
                              : correct.

3.12 Receiver Type            : LEICA GR30
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1706733
     Firmware Version         : 4.31/7.403
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-07-03
     Date Removed             : 2021-07-01
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.13 Receiver Type            : LEICA GR30
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1706733
     Firmware Version         : 4.50/7.710
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-07-01
     Date Removed             : 2021-11-02
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Firmware version update

3.14 Receiver Type            : LEICA GR30
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1706733
     Firmware Version         : 4.51/7.710
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-11-02
     Date Removed             : 2022-01-17
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Firmware version update

3.15 Receiver Type            : LEICA GR30
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1706733
     Firmware Version         : 4.52/7.711
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-01-17
     Date Removed             : 2022-08-18
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Firmware update

3.16 Receiver Type            : LEICA GR30
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1706733
     Firmware Version         : 4.60/7.811
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-08-18
     Date Removed             : 2024-08-16
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : Software update

3.17 Receiver Type            : LEICA GR30
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 1706733
     Firmware Version         : 4.70/7.813
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2024-08-16
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     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             : ASH700936D_M    NONE
     Serial Number            : CR14243
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0000
     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     : NONE
     Antenna Cable Type       : coaxial
     Antenna Cable Length     : 30 m
     Date Installed           : 1998-04-02T00:00Z
     Date Removed             : 2010-08-31T00:00Z
     Additional Information   : (multiple lines)

4.2  Antenna Type             : LEIAR25         LEIT
     Serial Number            : 09060011
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0000
     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     : NONE
     Antenna Cable Type       : coaxial
     Antenna Cable Length     : 30 m
     Date Installed           : 2010-08-31T00:00Z
     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        : 1998-04-02/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                   : Latvian Geospatial Information Agency
     Preferred Abbreviation   : LGIA
     Mailing Address          : Ojara Vaciesa street 43
                              : LV 1004 Riga
                              : Latvia
     Primary Contact
       Contact Name           : LATPOS TEAM
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : latpos@lgia.gov.lv
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : State Network. Post processing data without
                              : charge.




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    : 
     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 or URL)
       Site Pictures          : (Y or URL)
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

LEIAR25

                       +-------+                          <--  0.1995
                      /
                    +-           -+
                |---+-------------+---|                   <--  0.1456  TCR
             |---------------------------|
          |---------------------------------|
       |---------------------------------------|
    +---------------------------------------------+
    |                                             |
    |                                             |
  +-+---------------------------------------------+-+
  +-----------------+-------------+-----------------+     <--  0.0320  BCR
                    |             |
                    |             |
                    +------x------+                       <--  0.0000  BPA=ARP

  <--                    0.3802                   -->