     PVOG00GRC 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)  : GOP operation center (gop_oc@pecny.cz)
     Date Prepared            : 2026-02-24
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : pvog00grc_20250924.log
      Modified/Added Sections : 3.8, 3.9


1.   Site Identification of the GNSS Monument

     Site Name                : PARAVOLA
     Nine Character ID        : PVOG00GRC
     Monument Inscription     : 
     IERS DOMES Number        : 12661M001
     CDP Number               : (A4)
     Monument Description     : ROOF OF CONCRETE BUILDING
       Height of the Monument : 0.15 m
       Monument Foundation    : ROOF
       Foundation Depth       : (m)
     Marker Description       : HOLE IN STEEL PLATE
     Date Installed           : 2013-11-20
     Geologic Characteristic  : ROCK??
       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??
         Distance/activity    : 5 km/expected earthquakes??
     Additional Information   : Point is 0.3 m above the roof, the height
                              : of the building (above the ground) is about
                              : 15 m, foundation depth of the building is ?1 m.


2.   Site Location Information

     City or Town             : PARAVOLA
     State or Province        : Etoloakarnania
     Country or Region        : GRC
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 4642288.700
       Y coordinate (m)       : 1830838.200
       Z coordinate (m)       : 3958995.300
       Latitude (N is +)      : +383650.35
       Longitude (E is +)     : +0213124.30
       Elevation (m,ellips.)  : 114.1
     Additional Information   : approx. position from RINEX header


3.   GNSS Receiver Information

3.1  Receiver Type            : LEICA GR10
     Satellite System         : GPS+GLO+GAL+SBAS
     Serial Number            : 1701164
     Firmware Version         : 2.62/6.112
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2013-11-20
     Date Removed             : 2014-01-09T14:04Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.2  Receiver Type            : LEICA GR10
     Satellite System         : GPS+GLO+GAL+SBAS
     Serial Number            : 1701164
     Firmware Version         : 3.03/6.214
     Elevation Cutoff Setting : 5 deg
     Date Installed           : 2014-01-09T14:04Z
     Date Removed             : 2018-11-20T10:20Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.3  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.2.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-11-20T10:50Z
     Date Removed             : 2019-10-02T16:38Z
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 17333023089

3.4  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.3.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2019-10-02T16:42Z
     Date Removed             : 2020-02-19T16:50Z
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 17333023089

3.5  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.3.2
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-02-19T16:52Z
     Date Removed             : 2021-02-08T15:30Z
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 17333023089

3.6  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.4.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2021-02-08T15:33Z
     Date Removed             : 2024-12-09T09:51Z
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 17333023089

3.7  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.5.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2024-12-09T09:52Z
     Date Removed             : 2025-09-24T07:54Z
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 1733023089

3.8  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.6.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-09-24T07:58Z
     Date Removed             : 2026-02-24T23:21Z
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 1733023089

3.9  Receiver Type            : SEPT POLARX5
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS
     Serial Number            : 4502000
     Firmware Version         : 5.7.0
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2026-02-24T23:25Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : none
     Additional Information   : Internal SN: 1733023089

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             : LEIAR10         NONE
     Serial Number            : 15169038
     Antenna Reference Point  : BAM
     Marker->ARP Up Ecc. (m)  :   0.0499
     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       : LEICA SEMI-RIGID
     Antenna Cable Length     : 31 m
     Date Installed           : 2013-11-20
     Date Removed             : 2018-11-20T10:20Z
     Additional Information   : surge arrestor installed on the cable

4.2  Antenna Type             : SEPCHOKE_B3E6   SPKE
     Serial Number            : 5288
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  :   0.0499
     Marker->ARP North Ecc(m) :   0.0000
     Marker->ARP East Ecc(m)  :   0.0000
     Alignment from True N    : 0 deg
     Antenna Radome Type      : SPKE
     Radome Serial Number     : 5288
     Antenna Cable Type       : LEICA SEMI-RIGID
     Antenna Cable Length     : 31 m
     Date Installed           : 2018-11-20T10:50Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Additional Information   : surge arrestor installed on the cable

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        : 2013-11-20/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                   : University of Patras
                              : Laboratory of Seismology
                              : Department of Geology
     Preferred Abbreviation   : UPATRAS
     Mailing Address          : University Campus
                              : 26504 Rio Achaia
                              : Greece
     Primary Contact
       Contact Name           : GOP operation center
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : gop_oc@pecny.cz
     Secondary Contact
       Contact Name           : Efthimios Sokos
       Telephone (primary)    : +30 261 096 9369
       Telephone (secondary)  : +30 261 096 9369
       Fax                    : +30 261 099 0639
       E-mail                 : esokos@upatras.gr
     Additional Information   : (multiple lines)


12.  Responsible Agency (if different from 11.)

     Agency                   : Research Institute of Geodesy, Topography and
                              : Cartography
                              : Geodetic Observatory Pecny
     Preferred Abbreviation   : RIGTC GOP
     Mailing Address          : Pecny 244
                              : CZ-25165 Ondrejov
                              : Czechia
     Primary Contact
       Contact Name           : GOP operation center
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : gop_oc@pecny.cz
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : (multiple lines)


13.  More Information

     Primary Data Center      : GOP non-anonymous
     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

LEIAR10

                        .  ^  .                           <--  0.1362
                    .             .
               .                       .
           .                               .
        .                                     .
      /                                         \
     |                                           |
     |                                           |        <--  0.0362  Notch
     +-----____                         ____-----+
               -----____       ____-\ \-
                        +--x--+      \_\                  <--  0.0000  BAM=ARP

     <--                 0.2400                -->

     Antenna at the site

                        .  ^  .
                    .             .
               .                       .
           .                               .
        .                                     .
      /                                         \
     |                                           |
     |                                           |
     +-----____                         ____-----+
               -----____       ____-\ \-
                    +---+--x--+---+  \_\                  <--  0.0499  BAM=ARP
                    |             |
                    |             |
          +--+      |             |       +--+
         +----------+------x------+-----------+           <--  0.0000  ref.
point
         +------------------------------------+
          +--+          +-----+           +--+
           ||                              ||
           ||                              ||
           ||                              ||
           ||                              ||
           ||                              ||
           ||                              ||
           ||                              ||
           ||             +-+              ||
          +--+           +---+            +--+
         +------------------------------------+
         +------------------------------------+
  --------+--+------------+ +-------------+--+-------     roof
