Hi folks,
Vincent recently pointed out to me that GroundStation cannot be used without EOP data.
Thus I propose for Orekit 14.0 to introduce EarthBasedStation, which would do exactly what GroundStation currently does.
The latter would then become simpler, dropping EOP and related parameters (polar/meridian offset/drift).
I had a working branch for your perusal, but unfortunately GitLab is very slow tonight and won’t have it.
I think that an additional benefit would be performance with least squares as using 1000+ stations causes a huge slow down because of the ParameterDrivers (see issue 710).
Cheers,
Romain.