[Orekit Users] HEE or GSE Frames?

[<simon.spoerri@students.fhnw.ch>]

Dear all,

I am developing a webbased visualization tool of in-situ data gathered by
various satellites. Now fyi i am not very proficient in astronometry or
astrophysics... Nevertheless I'd like to use orekit to consolidate coordinates
from different coordinate systems provided by the data sources which use mostly
HEE (Heliocentric Earth Ecliptic) or GSE (Geocentric Solar Ecliptic)
coordinates. Now i was wondering if there already are some helper classes or
predefined transforms that could be used for transformations to ICRF or GCRF
respectively from the aforementioned coordinate systems?

help is very appreciated!

cheers,
Simon