EPFL00CHE 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)  : AgnesOP
     Date Prepared            : 2025-11-06
     Report Type              : UPDATE
     If Update: 
      Previous Site Log       : epfl_20250722.log
      Modified/Added Sections : 2, 6.1, 11, 13


1.   Site Identification of the GNSS Monument

     Site Name                : ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
     Four Character ID        : EPFL
     Monument Inscription     : 
     IERS DOMES Number        : 
     CDP Number               : (A4)
     Monument Description     : ALUMINIUM TUBE, FIXED ON CONCRETE WALL
       Height of the Monument : 1 M
       Monument Foundation    : 
       Foundation Depth       : 
     Marker Description       : 
     Date Installed           : 2006-05-05
     Geologic Characteristic  : 
       Bedrock Type           : 
       Bedrock Condition      : 
       Fracture Spacing       : 
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : (multiple lines)


2.   Site Location Information

     City or Town             : Lausanne Ecublens
     State or Province        : VD
     Country                  : Switzerland
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 4367900.6460
       Y coordinate (m)       : 502906.3950
       Z coordinate (m)       : 4605656.4160
       Latitude (N is +)      : +463117.30
       Longitude (E is +)     : +0063404.57
       Elevation (m,ellips.)  : 459.3
     Additional Information   : ETRS89


3.   GNSS Receiver Information

3.1  Receiver Type            : TRIMBLE 4700
     Satellite System         : GPS
     Serial Number            : 
     Firmware Version         : 
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2006-05-05
     Date Removed             : 2007-06-18
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.2  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : 
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2007-06-19
     Date Removed             : 2008-02-13T09:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.3  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : Nav  3.50 / Boot  3
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2008-02-13T09:00Z
     Date Removed             : 2008-12-01T10:45Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.4  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : Nav  3.64 / Boot  3
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2008-12-01T10:45Z
     Date Removed             : 2009-06-08T09:50Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.5  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : Nav  4.03 / Boot  3
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2009-06-08T09:50Z
     Date Removed             : 2010-07-09T07:15Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.6  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : 4.15
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2010-07-09T07:15Z
     Date Removed             : 2011-02-18T07:50Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.7  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : 4.19
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2011-02-18T07:50Z
     Date Removed             : 2011-11-16T06:43Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.8  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : 4.43
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2011-11-16T06:43Z
     Date Removed             : 2012-05-08T08:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.9  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : 4.48
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2012-05-08T08:00Z
     Date Removed             : 2014-05-01T14:40Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.10 Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03424
     Firmware Version         : 4.85
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2014-05-01T14:40Z
     Date Removed             : 2015-04-13T08:00Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.11 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 4.85
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-04-13T08:00Z
     Date Removed             : 2015-06-22T14:18Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.12 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.01
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-06-22T14:18Z
     Date Removed             : 2015-08-24T11:25Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.13 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.03
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-08-24T11:25Z
     Date Removed             : 2015-12-23T09:20Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.14 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.10
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-12-23T09:20Z
     Date Removed             : 2016-12-19T13:19Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.15 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.15
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-12-19T13:19Z
     Date Removed             : 2017-02-14T10:08Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.16 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.20
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-02-14T10:08Z
     Date Removed             : 2017-04-12T12:50Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.17 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.22
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-04-12T12:50Z
     Date Removed             : 2018-12-17T10:21Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.18 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.37
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-12-17T10:21Z
     Date Removed             : 2020-06-30T05:39Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.19 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.45
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-06-30T05:39Z
     Date Removed             : 2022-03-16T10:15Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.20 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.52
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-03-16T10:15Z
     Date Removed             : 2023-01-30T13:20Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.21 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5428R49121
     Firmware Version         : 5.56
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-01-30T13:20Z
     Date Removed             : 2024-11-05T09:59Z
     Temperature Stabiliz.    : none
     Additional Information   : (multiple lines)

3.22 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 1873110
     Firmware Version         : 4.81/7.900
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2024-11-05T10:38Z
     Date Removed             : 2025-01-15T10:10Z
     Temperature Stabiliz.    : none
     Additional Information   : Firmware 4.81.246

3.23 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1873110
     Firmware Version         : 4.81/7.900
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-01-15T10:10Z
     Date Removed             : 2025-06-03T13:00Z
     Temperature Stabiliz.    : none
     Additional Information   : Firmware 4.81.246
                              : Removed QZSS Tracking

3.24 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1873110
     Firmware Version         : 4.83/7.900
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-01-15T13:15Z
     Date Removed             : 2025-07-22T08:13Z
     Temperature Stabiliz.    : none
     Additional Information   : Firmware 4.83.342

3.25 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1873110
     Firmware Version         : 4.83/7.905
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-07-22T08:13Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : none
     Additional Information   : Firmware 4.83.342
                              : Beta Measurement Firmware

3.x  Receiver Type            : (A20, from rcvr_ant.tab; see instructions)
     Satellite System         : (GPS+GLO+GAL+BDS+QZSS+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     NONE
     Serial Number            : 74213
     Antenna Reference Point  : BPA
     Marker->ARP Up Ecc. (m)  : 000.0000
     Marker->ARP North Ecc(m) : 000.0000
     Marker->ARP East Ecc(m)  : 000.0000
     Alignment from True N    : 0
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : Trimble cable RG213
     Antenna Cable Length     : 30 m
     Date Installed           : 2006-05-05
     Date Removed             : 2007-06-18
     Additional Information   : (multiple lines)

4.2  Antenna Type             : TRM55971.00     NONE
     Serial Number            : 30278364
     Antenna Reference Point  : BAM
     Marker->ARP Up Ecc. (m)  : 000.0000
     Marker->ARP North Ecc(m) : 000.0000
     Marker->ARP East Ecc(m)  : 000.0000
     Alignment from True N    : 0
     Antenna Radome Type      : NONE
     Radome Serial Number     : 
     Antenna Cable Type       : Trimble cable RG213
     Antenna Cable Length     : 30 m
     Date Installed           : 2007-06-19
     Date Removed             : 2015-04-13T08:00Z
     Additional Information   : Individual absolute antenna calibration
                              : values are available

4.3  Antenna Type             : TRM59800.00     NONE
     Serial Number            : 5406354913
     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     : 
     Antenna Cable Type       : Trimble cable RG213
     Antenna Cable Length     : 30 m
     Date Installed           : 2015-04-13T08:00Z
     Date Removed             : CCYY-MM-DD
     Additional Information   : Individual absolute antenna calibration
                              : values are available

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        : 
       Effective Dates        : 2006-05-05/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                   : Swiss Federal Office of Topography
     Preferred Abbreviation   : swisstopo
     Mailing Address          : Seftigenstrasse 264, CH-3084 Wabern
     Primary Contact
       Contact Name           : swipos team
       Telephone (primary)    : +41 58 469 01 21
       Telephone (secondary)  : +41 58 469 01 11
       Fax                    : 
       E-mail                 : agnesop@swisstopo.ch
     Secondary Contact
       Contact Name           : PNAC team
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : pnac@swisstopo.ch
     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      : https://shop.swipos.ch
     Secondary Data Center    : https://api.swipos.ch
     URL for More Information : https://pnac.swisstopo.admin.ch/pages/en/epfl.html
     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

TRM29659.00     NONE
                         -----
                     /           \
                    |             |
  +-------------------------------------------------+     <--  0.1020  TCR
  |                                                 |
  |                                                 |
  |                                                 |
  |                                                 |
+-+-------------------------------------------------+-+   <--  0.0381
+-------------------+-------------+-------------------+   <--  0.0350  BCR
                    |             |
                   =|             |
                    +------x------+                       <--  0.0000  BPA=ARP
                                                                       RXC=NRP
<--                      0.3810                     -->


TRM55971.00     NONE
   / --------------------------------------------- \
  +                                                 +
   \ --------------------------------------------- /
                   \               /
                    \             /
                     \-----x-----/                        <--  0.0000  BAM=ARP
                                                                       RXC=NRP
  <--                    0.3396                   -->                  Notches


TRM59800.00     NONE
                         -----
                     /           \
                    |             |
  +-------------------------------------------------+     <--  0.1020  TCR
  |                                                 |
  |                                                 |
  |                                                 |
  |                                                 |
+-+-------------------------------------------------+-+   <--  0.0381
+-------------------+-------------+-------------------+   <--  0.0350  BCR
                    |             |
                   =|             |
                    +------x------+                       <--  0.0000  BPA=ARP
                                                                       RXC=NRP
<--                      0.3810                     -->


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                       BAM: Bottom of antenna mount

All dimensions are in meters.