Celestia Forums

Does anyone know of a XYZ editor. I would like to make more trajectories but it's so time consuming.
Any help would be appreciated.

WELL how did they make the Ulysses xyz or the Rosetta xyz or the … the list goes on!!!

they don’t just come out of no ware!

please answer me!

xyz trajectory information for real spacecraft is available from the JPL Horizons ephemeris server.
http://ssd.jpl.nasa.gov/?horizons
JPL calculates the positions from information provided by the individual research project teams.