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 HERT00GBR (Hailsham, GBR) 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
067/2015 - 316/2022 001/2010 4033461.166 ± 0.000 23537.570 ± 0.000 4924318.040 ± 0.000 -0.0007 ± 0.0000 -0.0006 ± 0.0000 -0.0006 ± 0.0000
343/2007 - 059/2015 001/2010 4033461.167 ± 0.000 23537.567 ± 0.000 4924318.044 ± 0.000 -0.0007 ± 0.0000 -0.0006 ± 0.0000 -0.0006 ± 0.0000
078/2003 - 331/2007 001/2010 4033461.173 ± 0.000 23537.569 ± 0.000 4924318.045 ± 0.000 -0.0007 ± 0.0000 -0.0006 ± 0.0000 -0.0006 ± 0.0000

EPN_ETRF2014_C2235.SNX.Z

ETRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
067/2015 - 316/2022 001/2010 4033461.124 ± 0.000 23537.524 ± 0.000 4924318.087 ± 0.000 -0.0003 ± 0.0000 -0.0003 ± 0.0000 -0.0000 ± 0.0000
343/2007 - 059/2015 001/2010 4033461.124 ± 0.000 23537.521 ± 0.000 4924318.090 ± 0.000 -0.0003 ± 0.0000 -0.0003 ± 0.0000 -0.0000 ± 0.0000
078/2003 - 331/2007 001/2010 4033461.130 ± 0.000 23537.523 ± 0.000 4924318.092 ± 0.000 -0.0003 ± 0.0000 -0.0003 ± 0.0000 -0.0000 ± 0.0000

EPN_IGb14_C2235.SNX.Z

IGb14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
067/2015 - 316/2022 001/2010 4033460.856 ± 0.000 23537.883 ± 0.000 4924318.304 ± 0.000 -0.0130 ± 0.0000 0.0168 ± 0.0000 0.0103 ± 0.0000
343/2007 - 059/2015 001/2010 4033460.856 ± 0.000 23537.880 ± 0.000 4924318.308 ± 0.000 -0.0130 ± 0.0000 0.0168 ± 0.0000 0.0103 ± 0.0000
078/2003 - 331/2007 001/2010 4033460.862 ± 0.000 23537.882 ± 0.000 4924318.310 ± 0.000 -0.0130 ± 0.0000 0.0168 ± 0.0000 0.0103 ± 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
062/2015 - 102/2020 001/2010 4033460.855 ± 0.000 23537.884 ± 0.000 4924318.304 ± 0.000 -0.0130 ± 0.0000 0.0166 ± 0.0000 0.0105 ± 0.0000
339/2007 - 061/2015 001/2010 4033460.857 ± 0.000 23537.880 ± 0.000 4924318.309 ± 0.000 -0.0130 ± 0.0000 0.0166 ± 0.0000 0.0105 ± 0.0000
077/2003 - 338/2007 001/2010 4033460.862 ± 0.000 23537.881 ± 0.000 4924318.311 ± 0.000 -0.0130 ± 0.0000 0.0166 ± 0.0000 0.0105 ± 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
063/2015 - 001/2021 001/2015 4033460.794 ± 0.001 23537.968 ± 0.001 4924318.355 ± 0.001 -0.0131 ± 0.0001 0.0169 ± 0.0000 0.0101 ± 0.0001
339/2007 - 062/2015 001/2015 4033460.793 ± 0.001 23537.966 ± 0.001 4924318.356 ± 0.001 -0.0131 ± 0.0001 0.0169 ± 0.0000 0.0101 ± 0.0001
078/2003 - 338/2007 001/2015 4033460.799 ± 0.001 23537.967 ± 0.001 4924318.360 ± 0.001 -0.0131 ± 0.0001 0.0169 ± 0.0000 0.0101 ± 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 4033460.688 ± 0.000 23538.100 ± 0.000 4924318.440 ± 0.000 NANANA

5. POSITIONS PUBLISHED BY THE COUNTRY

Coordinates not yet provided for HERT00GBR (Hailsham, GBR).

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].