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 SCIL00GBR (Hugh Town, GBR) as a class A station which means that it can used as fiducial station for EUREF densifications.

LATEST RELEASE

C2160 (July 22, 2021)

EPN_A_ETRF2000_C2160.SSC

ETRF2000 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
226/2019 - 156/2021 001/2010 4090376.280 ± 0.001 -451278.113 ± 0.001 4856739.785 ± 0.001 0.0005 ± 0.0001 0.0005 ± 0.0001 0.0000 ± 0.0001
043/2017 - 224/2019 001/2010 4090376.291 ± 0.001 -451278.121 ± 0.001 4856739.788 ± 0.001 0.0005 ± 0.0001 0.0005 ± 0.0001 0.0000 ± 0.0001

EPN_A_ETRF2014_C2160.SSC

ETRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
226/2019 - 156/2021 001/2010 4090376.238 ± 0.001 -451278.157 ± 0.001 4856739.831 ± 0.001 0.0010 ± 0.0001 0.0008 ± 0.0001 0.0005 ± 0.0001
043/2017 - 224/2019 001/2010 4090376.249 ± 0.001 -451278.165 ± 0.001 4856739.834 ± 0.001 0.0010 ± 0.0001 0.0008 ± 0.0001 0.0005 ± 0.0001

EPN_A_IGb14_C2160.SSC

IGb14 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
226/2019 - 156/2021 001/2010 4090376.011 ± 0.001 -451277.794 ± 0.001 4856740.056 ± 0.001 -0.0098 ± 0.0001 0.0181 ± 0.0001 0.0112 ± 0.0001
043/2017 - 224/2019 001/2010 4090376.022 ± 0.001 -451277.802 ± 0.001 4856740.059 ± 0.001 -0.0098 ± 0.0001 0.0181 ± 0.0001 0.0112 ± 0.0001
plus_minus
PREVIOUS RELEASES

2. POSITIONS/VELOCITIES PUBLISHED BY THE IGS

IGS has not yet released coordinates for SCIL00GBR (Hugh Town, GBR).

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
000/0000 - 000/0000 001/2010 4090376.309 ± 0.001 -451278.117 ± 0.001 4856739.798 ± 0.001 -0.0019 ± 0.0002 0.0008 ± 0.0001 -0.0013 ± 0.0002
ITRF2014 epoch t0 Position (m) Velocity (m/y)
X Y Z VX VY VZ
000/0000 - 000/0000 001/2010 4090376.040 ± 0.001 -451277.799 ± 0.001 4856740.070 ± 0.001 -0.0122 ± 0.0002 0.0183 ± 0.0001 0.0099 ± 0.0002
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
241/2021 - 247/2021 244/2021 4090375.894 ± 0.000 -451277.585 ± 0.000 4856740.186 ± 0.000 NANANA

5. POSITIONS PUBLISHED BY THE COUNTRY

The official ETRS89 coordinates used in GBR are maintained by Ordnance Survey / LPS Nothern Ireland. 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
239/2016- now 277/2009 4090376.317 -451278.123 4856739.768 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].