VLNS00LTU 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)  : Eimuntas Parseliunas
     Date Prepared            : 2020-07-16
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : vlns00ltu_20150925.log
      Modified/Added Sections : 11


1.   Site Identification of the GNSS Monument

     Site Name                : Vilnius
     Nine Character ID        : VLNS00LTU
     Monument Inscription     : 
     IERS DOMES Number        : 10801M001
     CDP Number               : (A4)
     Monument Description     : PILLAR/BRASS
       Height of the Monument : 2.82 m
       Monument Foundation    : CONCRETE BLOCK
       Foundation Depth       : 2.50 m
     Marker Description       : HOLE
     Date Installed           : 1997-09-16
     Geologic Characteristic  : SAND
       Bedrock Type           : SEDIMENTARY
       Bedrock Condition      : FRESH
       Fracture Spacing       : 1-10 cm
       Fault zones nearby     : NO
         Distance/activity    : (multiple lines)
     Additional Information   : Monument type - The GPS reference mark consists
                              : of steel plate with a forced centering hole
                              : embedded on top of a 3.0 metre high concrete
                              : pier, 30 cm in diameter. The concrete pier is
                              : anchored to ground by concrete block 1.5 m
                              : in size to a depth of 2.5 m.


2.   Site Location Information

     City or Town             : Vilnius
     State or Province        : N/A
     Country or Region        : LTU
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 3343600.974
       Y coordinate (m)       : 1580417.579
       Z coordinate (m)       : 5179337.091
       Latitude (N is +)      : +543911.30
       Longitude (E is +)     : +0251755.19
       Elevation (m,ellips.)  : 240.8
     Additional Information   : (multiple lines)


3.   GNSS Receiver Information

3.1  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : 04927
     Firmware Version         : 1F00
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 1997-09-16
     Date Removed             : 1999-05-19
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.2  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : 04927
     Firmware Version         : 1K00
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 1999-05-19
     Date Removed             : 1999-10-25
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.3  Receiver Type            : ASHTECH Z-XII3
     Satellite System         : GPS
     Serial Number            : LP01088
     Firmware Version         : 6J00
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2002-09-18T10:00Z
     Date Removed             : 2013-09-25T10:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.4  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 496804
     Firmware Version         : V 8.10
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2013-10-01T00:00Z
     Date Removed             : 2015-07-21T12:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.5  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 496804
     Firmware Version         : V 8.10
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-07-21T12:00Z
     Date Removed             : 2015-07-29T10:00Z
     Temperature Stabiliz.    : (deg C) +/- (deg C)
     Additional Information   : (multiple lines)

3.6  Receiver Type            : LEICA GRX1200+GNSS
     Satellite System         : GPS+GLO
     Serial Number            : 496804
     Firmware Version         : V 9.20
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-07-29T10:00Z
     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             : ASH700936A_M    NONE
     Serial Number            : 0477
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0730
     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       : ANDREW heliax LDF2-50A
     Antenna Cable Length     : 20 m
     Date Installed           : 1997-09-16T11:00Z
     Date Removed             : 2013-09-25T10:00Z
     Additional Information   : (multiple lines)

4.2  Antenna Type             : LEIAR25.R4      NONE
     Serial Number            : 725555
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0730
     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       : SEMIRIGID RG218
     Antenna Cable Length     : 30 m
     Date Installed           : 2013-10-01T00:00Z
     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        : 2002-09-18/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

7.1  Instrumentation Type     : GPS
       Status                 : PERMANENT
       Effective Dates        : 2002-09-18/CCYY-MM-DD
       Notes                  : (multiple lines)

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                   : Geodetic Institute of Vilnius TU
     Preferred Abbreviation   : VGTUGI
     Mailing Address          : Sauletekio al. 11
                              : LT-10223 Vilnius
                              : Lithuania
     Primary Contact
       Contact Name           : Eimuntas Parseliunas
       Telephone (primary)    : +370 5 274 4705
       Telephone (secondary)  : 
       Fax                    : +370 5 274 4705
       E-mail                 : eimis@vgtu.lt
     Secondary Contact
       Contact Name           : Marius Petniunas
       Telephone (primary)    : +370 5 274 4703
       Telephone (secondary)  : 
       Fax                    : +370 5 274 4705
       E-mail                 : marius.petniunas@vgtu.lt
     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 or URL)
       Site Pictures          : (Y or URL)
     Additional Information   : (multiple lines)
     Antenna Graphics with Dimensions

LEIAR25.R4

                       +-------+                          <--  0.1995
                      /         \
                +---+-------------+---+                   <--  0.1606  TCR
                |                     |
             |---------------------------|
          |---------------------------------|
       |---------------------------------------|
    +---------------------------------------------+
    |                                             |
    |                                             |
  +-+---------------------------------------------+-+
  +-----------------+-------------+-----------------+     <--  0.0320  BCR
                    |             |
                    |             |
                    +------x------+                       <--  0.0000  BPA=ARP

  <--                    0.3802                   -->


   +-----------------------x--------------------------+   <-- 0.073 XYZ
   |                     |   |                        |
   +--------------------------------------------------+

ARP: Antenna Reference Point           XYZ: GPS marker center