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), but also by the switch from relative to absolute antenna models in the GNSS data processing (Nov. 2006). Consequently, station coordinates up to 315/2006 are compatible (and should be used) with relative antenna models while station coordinates after 316/2006 are compatible (and should be used) with absolute antenna models.

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

The precisions indicated in the tables below are formal 1 sigma errors from the normal equation stacking. Due to the rounding, formal errors indicated by 0.000 m (0.0000 m/y) must be read as being smaller than 0.0005 m (0.00005 m/y) or 0.5 mm (0.05mm/y).

1. POSITIONS/VELOCITIES PUBLISHED BY EUREF

EUREF has classified BRUS00BEL (Brussels, Belgium) as a class A station which means that it can used as fiducial station for EUREF densifications.

Latest release

EPN_A_ETRF2000_C1600.SSC - EPN_A_ITRF2005_C1600.SSC (October 23, 2010) - more information

ETRF2000 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
309/2006 - 254/2010 001/2005 4027894.013 ± 0.000 307045.598 ± 0.000 4919474.912 ± 0.000 0.0002 ± 0.0001 -0.0010 ± 0.0000 0.0004 ± 0.0001
121/2000 - 308/2006 001/2005 4027894.013 ± 0.000 307045.596 ± 0.000 4919474.913 ± 0.000 0.0002 ± 0.0001 -0.0011 ± 0.0000 0.0004 ± 0.0001
182/1996 - 113/2000 001/2005 4027894.010 ± 0.000 307045.595 ± 0.000 4919474.914 ± 0.001 0.0002 ± 0.0001 -0.0011 ± 0.0000 0.0004 ± 0.0001
ITRF2005 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
309/2006 - 254/2010 001/2005 4027893.751 ± 0.000 307045.825 ± 0.000 4919475.122 ± 0.000 -0.0128 ± 0.0001 0.0163 ± 0.0000 0.0112 ± 0.0001
121/2000 - 308/2006 001/2005 4027893.751 ± 0.000 307045.824 ± 0.000 4919475.123 ± 0.000 -0.0128 ± 0.0001 0.0162 ± 0.0000 0.0112 ± 0.0001
182/1996 - 113/2000 001/2005 4027893.747 ± 0.000 307045.823 ± 0.000 4919475.125 ± 0.001 -0.0127 ± 0.0001 0.0162 ± 0.0000 0.0112 ± 0.0001

Click HERE to see a plot of how the station positions between successive cumulative solutions agree with each other.

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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
204/2011 - 045/2012 001/2010 4027893.683 ± 0.001 307045.915 ± 0.001 4919475.176 ± 0.001 -0.0136 ± 0.0000 0.0168 ± 0.0000 0.0104 ± 0.0000
119/2000 - 204/2011 001/2010 4027893.680 ± 0.001 307045.909 ± 0.001 4919475.177 ± 0.001 -0.0136 ± 0.0000 0.0168 ± 0.0000 0.0104 ± 0.0000
002/1994 - 113/2000 001/2010 4027893.672 ± 0.001 307045.906 ± 0.001 4919475.170 ± 0.001 -0.0136 ± 0.0000 0.0168 ± 0.0000 0.0104 ± 0.0000
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Previous releases

3. POSITIONS/VELOCITIES PUBLISHED BY THE IERS

Latest release

ETRF2000(14R) not yet ready
-
ITRF2014_GNSS.SSC.txt (January 21, 2016)

ITRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
204/2011 - 365/2014 001/2010 4027893.679 ± 0.001 307045.912 ± 0.001 4919475.168 ± 0.001 -0.0136 ± 0.0000 0.0168 ± 0.0000 0.0104 ± 0.0000
118/2000 - 204/2011 001/2010 4027893.677 ± 0.001 307045.906 ± 0.001 4919475.169 ± 0.001 -0.0136 ± 0.0000 0.0168 ± 0.0000 0.0104 ± 0.0000
start - 118/2000 001/2010 4027893.672 ± 0.001 307045.906 ± 0.001 4919475.170 ± 0.001 -0.0136 ± 0.0000 0.0168 ± 0.0000 0.0104 ± 0.0000
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Previous releases

4. POSITION PUBLISHED WEEKLY IN THE EPN COMBINED SOLUTION

IGS08 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
043/2012 - 049/2012 044/2012 4027893.655 ± 0.000 307045.951 ± 0.000 4919475.194 ± 0.000 NANANA

5. POSITIONS PUBLISHED BY THE COUNTRY

The official ETRS89 coordinates used in Belgium are maintained by NGI. 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
258/2003 - now 001/1989 4027894.013 307045.600 4919474.914 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].