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 LROC00FRA (La Rochelle, France) as a class A station which means that it can used as fiducial station for EUREF densifications.

LATEST RELEASE

C2055 (July 25, 2019)

EPN_A_ETRF2000_C2055.SSC

ETRF2000 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
277/2014 - 152/2019 001/2010 4424632.792 ± 0.001 -94175.478 ± 0.001 4577543.855 ± 0.001 -0.0006 ± 0.0001 -0.0002 ± 0.0001 -0.0007 ± 0.0001
328/2001 - 276/2014 001/2010 4424632.793 ± 0.001 -94175.478 ± 0.001 4577543.858 ± 0.001 -0.0006 ± 0.0001 -0.0002 ± 0.0001 -0.0007 ± 0.0001

EPN_A_ETRF2014_C2055.SSC

ETRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
277/2014 - 152/2019 001/2010 4424632.747 ± 0.001 -94175.522 ± 0.001 4577543.901 ± 0.001 -0.0003 ± 0.0001 0.0001 ± 0.0001 -0.0002 ± 0.0001
328/2001 - 276/2014 001/2010 4424632.749 ± 0.001 -94175.522 ± 0.001 4577543.903 ± 0.001 -0.0003 ± 0.0001 0.0001 ± 0.0001 -0.0002 ± 0.0001

EPN_A_IGS14_C2055.SSC

IGS14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
277/2014 - 152/2019 001/2010 4424632.507 ± 0.001 -94175.135 ± 0.001 4577544.141 ± 0.001 -0.0117 ± 0.0001 0.0185 ± 0.0001 0.0113 ± 0.0001
328/2001 - 276/2014 001/2010 4424632.508 ± 0.001 -94175.136 ± 0.001 4577544.143 ± 0.001 -0.0117 ± 0.0001 0.0185 ± 0.0001 0.0113 ± 0.0001
plus_minus
PREVIOUS RELEASES

2. POSITIONS/VELOCITIES PUBLISHED BY THE IGS

LATEST RELEASE

IGS14.CRD (January 29, 2017) - more information

IGS14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
277/2014 - 046/2015 001/2010 4424632.505 ± 0.001 -94175.136 ± 0.001 4577544.143 ± 0.001 -0.0118 ± 0.0000 0.0185 ± 0.0000 0.0111 ± 0.0000
327/2001 - 277/2014 001/2010 4424632.509 ± 0.001 -94175.136 ± 0.001 4577544.143 ± 0.001 -0.0118 ± 0.0000 0.0185 ± 0.0000 0.0111 ± 0.0000
plus_minus
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3. POSITIONS/VELOCITIES PUBLISHED BY THE IERS

LATEST RELEASE

ETRF2000-R14.SSC (October 4, 2016) - ITRF2014_GNSS.SSC.txt (January 21, 2016)

ETRF2000(R14) epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
277/2014 - 365/2014 001/2010 4424632.786 ± 0.001 -94175.481 ± 0.001 4577543.849 ± 0.001 -0.0007 ± 0.0000 -0.0002 ± 0.0000 -0.0008 ± 0.0000
start - 277/2014 001/2010 4424632.789 ± 0.001 -94175.481 ± 0.001 4577543.850 ± 0.001 -0.0007 ± 0.0000 -0.0002 ± 0.0000 -0.0008 ± 0.0000
ITRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
277/2014 - 365/2014 001/2010 4424632.501 ± 0.001 -94175.139 ± 0.001 4577544.135 ± 0.001 -0.0118 ± 0.0000 0.0185 ± 0.0000 0.0111 ± 0.0000
start - 277/2014 001/2010 4424632.504 ± 0.001 -94175.138 ± 0.001 4577544.135 ± 0.001 -0.0118 ± 0.0000 0.0185 ± 0.0000 0.0111 ± 0.0000
plus_minus
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4. POSITION PUBLISHED WEEKLY IN THE EPN COMBINED SOLUTION

IGS08 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
022/2017 - 028/2017 025/2017 4424632.423 ± 0.000 -94175.006 ± 0.000 4577544.221 ± 0.000 NANANA

5. POSITIONS PUBLISHED BY THE COUNTRY

The official ETRS89 coordinates used in France are maintained by IGN. 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
169/2010 - now 001/2009 4424632.791 -94175.481 4577543.854 NANANA
324/2001 - 169/2010 001/1993 4424632.816 -94175.478 4577543.870 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].