ZERM 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            : 2025-06-10
     Report Type              : UPDATE
     If Update:
      Previous Site Log       : zerm_20241107.log
      Modified/Added Sections : 3.20, 3.21


1.   Site Identification of the GNSS Monument

     Site Name                : ZERMATT
     Four Character ID        : ZERM
     Monument Inscription     : 
     IERS DOMES Number        : 
     CDP Number               : (A4)
     Monument Description     : STEEL GIRDER MAST LETRONA 
       Height of the Monument : 3 m
       Monument Foundation    : CONCRETE BASEMENT ON ROOF TERRACE
       Foundation Depth       : 0.6 m
     Marker Description       : BRONZE EYE-BOLT WITH SCREW CAP
     Date Installed           : 2005-08-30
     Geologic Characteristic  : 
       Bedrock Type           : 
       Bedrock Condition      : 
       Fracture Spacing       : 
       Fault zones nearby     : 
         Distance/activity    : 
     Additional Information   : 


2.   Site Location Information

     City or Town             : Zermatt  Furi
     State or Province        : VS
     Country                  : SWITZERLAND
     Tectonic Plate           : EURASIAN
     Approximate Position (ITRF)
       X coordinate (m)       : 4399182.965
       Y coordinate (m)       : 597294.450
       Z coordinate (m)       : 4566748.124
       Latitude (N is +)      : +460005.19
       Longitude (E is +)     : +0074355.18
       Elevation (m,ellips.)  : 1931.2
     Additional Information   : ETRS89


3.   GNSS Receiver Information

3.1  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : Nav  3.50 / Boot  3
     Elevation Cutoff Setting : 0
     Date Installed           : 2005-08-30
     Date Removed             : 2008-12-04T10:15Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.2  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : Nav  3.64 / Boot  3
     Elevation Cutoff Setting : 0
     Date Installed           : 2008-12-04T10:15Z
     Date Removed             : 2009-06-19T10:30Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.3  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : Nav  4.03 / Boot  3
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2009-06-19T10:30Z
     Date Removed             : 2010-08-05T08:00Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.4  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : 4.14
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2010-08-05T08:00Z
     Date Removed             : 2011-02-22T09:10Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.5  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : 4.19
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2011-02-22T09:10Z
     Date Removed             : 2011-11-21T08:53Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.6  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : 4.43
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2011-11-21T08:53Z
     Date Removed             : 2012-05-03T15:45Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.7  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : 4.48
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2012-05-03T15:45Z
     Date Removed             : 2014-05-02T12:16Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.8  Receiver Type            : TRIMBLE NETR5
     Satellite System         : GPS+GLO
     Serial Number            : 4649K03426
     Firmware Version         : 4.85
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2014-05-02T12:16Z
     Date Removed             : 2015-03-18T10:00Z
     Temperature Stabiliz.    : NONE
     Additional Information   :

3.9  Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 4.85
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-03-18T10:00Z
     Date Removed             : 2015-06-24T14:17Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.10 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.01
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-06-24T14:17Z
     Date Removed             : 2015-08-24T15:02Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.11 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.03
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-08-24T15:02Z
     Date Removed             : 2015-12-21T13:25Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.12 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.10
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2015-12-21T13:25Z
     Date Removed             : 2016-12-20T15:23Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.13 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.15
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2016-12-20T15:23Z
     Date Removed             : 2017-02-21T15:39Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.14 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.20
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-02-21T15:39Z
     Date Removed             : 2017-04-04T09:45Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.15 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.22
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2017-04-04T09:45Z
     Date Removed             : 2018-12-18T14:30Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.16 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.37
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2018-12-18T14:30Z
     Date Removed             : 2020-06-29T11:40Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.17 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.45
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2020-06-29T11:40Z
     Date Removed             : 2022-03-22T12:50Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.18 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.52
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2022-03-22T12:50Z
     Date Removed             : 2023-01-30T14:30Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.19 Receiver Type            : TRIMBLE NETR9
     Satellite System         : GPS+GLO+GAL+BDS
     Serial Number            : 5424R48916
     Firmware Version         : 5.56
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2023-01-30T14:30Z
     Date Removed             : 2024-11-07T09:59Z
     Temperature Stabiliz.    : NONE
     Additional Information   : 

3.20 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+QZSS+SBAS
     Serial Number            : 1873122
     Firmware Version         : 4.81/7.900
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2024-11-07T11:02Z
     Date Removed             : 2025-01-15T10:10Z
     Temperature Stabiliz.    : NONE
     Additional Information   : Firmware 4.81.246

3.21 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1873122
     Firmware Version         : 4.81/7.900
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-01-15T10:10Z
     Date Removed             : 2025-06-10T08:00Z
     Temperature Stabiliz.    : NONE
     Additional Information   : Firmware 4.81.246
                              : Removed QZSS Tracking

3.22 Receiver Type            : LEICA GR50
     Satellite System         : GPS+GLO+GAL+BDS+SBAS
     Serial Number            : 1873122
     Firmware Version         : 4.83/7.900
     Firmware Version         : 4.81/7.900
     Elevation Cutoff Setting : 0 deg
     Date Installed           : 2025-06-10T08:15Z
     Date Removed             : CCYY-MM-DDThh:mmZ
     Temperature Stabiliz.    : NONE
     Additional Information   : Firmware 4.83.342

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             : TRM41249.00     NONE     
     Serial Number            : 35184
     Antenna Reference Point  : BAM
     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
     Antenna Cable Length     : 30 m
     Date Installed           : 2005-08-30
     Date Removed             : 2007-06-25
     Additional Information   : 

4.2  Antenna Type             : TRM55971.00     NONE
     Serial Number            : 30278411
     Antenna Reference Point  : BAM
     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
     Antenna Cable Length     : 30 m
     Date Installed           : 2007-06-26
     Date Removed             : 2010-02-10
     Additional Information   : Individual absolute antenna calibration
                              : values are available

4.3  Antenna Type             : TRM59800.00     NONE
     Serial Number            : 53587
     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
     Antenna Cable Length     : 30 m
     Date Installed           : 2010-02-11
     Date Removed             : CCYY-MM-DDThh:mmZ
     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

6.   Frequency Standard

7.   Collocation Information

8.   Meteorological Instrumentation

9.   Local Ongoing Conditions Possibly Affecting Computed Position

10.  Local Episodic Effects Possibly Affecting Data Quality


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                    : +41 58 469 04 59
       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                   : 
     Preferred Abbreviation   : 
     Mailing Address          : 
     Primary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Secondary Contact
       Contact Name           : 
       Telephone (primary)    : 
       Telephone (secondary)  : 
       Fax                    : 
       E-mail                 : 
     Additional Information   : 


13.  More Information

     Primary Data Center      : 
     Secondary Data Center    : 
     URL for More Information : https://www.swisstopo.admin.ch
     Hardcopy on File
       Site Map               : 
       Site Diagram           : 
       Horizon Mask           : 
       Monument Description   : 
       Site Pictures          : 
     Additional Information   : 


Antenna Graphics with Dimensions

TRM59800.00

                         -----
                     /     +     \
                    |      +      |
  +--------------------------------------------------+    <-- 0.1020 TCR
  |                                                  |
  |                                                  |
  |                                                  |
  |                                                  |
+-+--------------------------------------------------+-+  <-- 0.0381
+-------------------+-------------+--------------------+  <-- 0.0350 BCR
                    |             |
                   =|             |
                    +------x------+                       <-- 0.0 BPA=ARP

<--                      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.