Due to the occurance of coordinate jumps, the station coordinates given in the tables below are valid for a specific period in time (indicated in the first column). The coordinate jumps are caused by station-specific equipment changes (see station log and/or EPN_discontinuities.snx).

To obtain the station positions at an epoch t different from t0, apply the station velocities: X(t) = X(t0) + (t-t0)*VX; Y(t) = Y(t0) + (t-t0)*VY; Z(t) = Z(t0) + (t-t0)*VZ

1. POSITIONS/VELOCITIES PUBLISHED BY EUREF

EUREF has classified ZIMM00CHE (Zimmerwald, CHE) as a class A station which means that it can used as fiducial station for EUREF densifications.

LATEST RELEASE

C2235 (February 22, 2023)

EPN_ETRF2000_C2235.SNX.Z

ETRF2000 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
311/1998 - 316/2022 001/2010 4331297.336 ± 0.000 567555.633 ± 0.000 4633133.717 ± 0.000 -0.0002 ± 0.0000 -0.0003 ± 0.0000 0.0003 ± 0.0000
001/1996 - 309/1998 001/2010 4331297.331 ± 0.000 567555.632 ± 0.000 4633133.713 ± 0.000 -0.0002 ± 0.0000 -0.0003 ± 0.0000 0.0003 ± 0.0000

EPN_ETRF2014_C2235.SNX.Z

ETRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
311/1998 - 316/2022 001/2010 4331297.291 ± 0.000 567555.588 ± 0.000 4633133.764 ± 0.000 0.0001 ± 0.0000 -0.0001 ± 0.0000 0.0008 ± 0.0000
001/1996 - 309/1998 001/2010 4331297.285 ± 0.000 567555.586 ± 0.000 4633133.759 ± 0.000 0.0001 ± 0.0000 -0.0001 ± 0.0000 0.0008 ± 0.0000

EPN_IGb14_C2235.SNX.Z

IGb14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
311/1998 - 316/2022 001/2010 4331296.996 ± 0.000 567555.967 ± 0.000 4633133.993 ± 0.000 -0.0139 ± 0.0000 0.0180 ± 0.0000 0.0118 ± 0.0000
001/1996 - 309/1998 001/2010 4331296.990 ± 0.000 567555.966 ± 0.000 4633133.989 ± 0.000 -0.0139 ± 0.0000 0.0180 ± 0.0000 0.0118 ± 0.0000
plus_minus
PREVIOUS RELEASES

2. POSITIONS/VELOCITIES PUBLISHED BY THE IGS

LATEST RELEASE

IGb14.ssc (May 14, 2020) - more information

IGb14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
311/1998 - 103/2020 001/2010 4331296.995 ± 0.000 567555.967 ± 0.000 4633133.993 ± 0.000 -0.0140 ± 0.0000 0.0180 ± 0.0000 0.0117 ± 0.0000
002/1994 - 310/1998 001/2010 4331296.993 ± 0.000 567555.966 ± 0.000 4633133.991 ± 0.000 -0.0140 ± 0.0000 0.0180 ± 0.0000 0.0117 ± 0.0000
plus_minus
PREVIOUS RELEASES

3. POSITIONS/VELOCITIES PUBLISHED BY THE IERS

LATEST RELEASE

ETRF2000(20R) not yet ready
-
(April 15, 2022)

epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
311/1998 - 001/2021 001/2015 4331296.930 ± 0.001 567556.058 ± 0.001 4633134.052 ± 0.001 -0.0138 ± 0.0001 0.0181 ± 0.0000 0.0116 ± 0.0001
002/1994 - 310/1998 001/2015 4331296.928 ± 0.001 567556.057 ± 0.001 4633134.050 ± 0.001 -0.0138 ± 0.0001 0.0181 ± 0.0000 0.0116 ± 0.0001
plus_minus
PREVIOUS RELEASES

4. POSITION PUBLISHED WEEKLY IN THE EPN COMBINED SOLUTION

IGb14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
324/2022 - 330/2022 327/2022 4331296.817 ± 0.000 567556.200 ± 0.000 4633134.144 ± 0.000 NANANA

5. POSITIONS PUBLISHED BY THE COUNTRY

The official ETRS89 coordinates used in CHE are maintained by swisstopo. This agency is fully responsible for the information kindly provided to the EPN:

Valid (from - to) epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
172/2018- now 001/1993 4331297.348 567555.639 4633133.728 NANANA
237/2015- 171/2018 001/1993 4331297.348 567555.640 4633133.728 NANANA
001/1988- 236/2015 001/1993 4331297.339 567555.638 4633133.717 NANANA

Following a recent initiative of the EUREF Technical Working Group (Monitoring of official national ETRF coordinates on EPN web), the differences between the national coordinates and the latest cumulative EPN solutions (section 1) are regularly monitored. They are given in two maps: [horizontal differences] and [vertical differences].