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 LILL00FRA (Villeneuve d'Ascq, FRA) as a class A station which means that it can used as fiducial station for EUREF densifications.

LATEST RELEASE

C2175 (December 15, 2021)

EPN_ETRF2000_C2175.SNX.Z

ETRF2000 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
033/2002 - 180/2007 001/2010 4049386.392 ± 0.000 222031.333 ± 0.000 4906400.670 ± 0.001 -0.0003 ± 0.0001 -0.0003 ± 0.0000 -0.0006 ± 0.0001

EPN_ETRF2014_C2175.SNX.Z

ETRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
033/2002 - 180/2007 001/2010 4049386.348 ± 0.000 222031.287 ± 0.000 4906400.717 ± 0.001 0.0001 ± 0.0001 -0.0001 ± 0.0000 0.0000 ± 0.0001

EPN_IGb14_C2175.SNX.Z

IGb14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
033/2002 - 180/2007 001/2010 4049386.066 ± 0.000 222031.647 ± 0.000 4906400.934 ± 0.001 -0.0134 ± 0.0001 0.0170 ± 0.0000 0.0103 ± 0.0001
plus_minus
PREVIOUS RELEASES

2. POSITIONS/VELOCITIES PUBLISHED BY THE IGS

IGS has not yet released coordinates for LILL00FRA (Villeneuve d'Ascq, FRA).

3. POSITIONS/VELOCITIES PUBLISHED BY THE IERS

IERS has not yet released coordinates for LILL00FRA (Villeneuve d'Ascq, FRA).

4. POSITION PUBLISHED WEEKLY IN THE EPN COMBINED SOLUTION

IGS08 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
175/2007 - 181/2007 176/2007 4049386.107 ± 0.000 222031.605 ± 0.000 4906400.915 ± 0.000 NANANA

5. POSITIONS PUBLISHED BY THE COUNTRY

The official ETRS89 coordinates used in FRA 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
032/2001- 179/2007 001/1993 4049386.378 222031.296 4906400.681 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].