The output to the log is less than useless.
Given a stream output of ship x,y,z co-ords I'd write a GPS
Can you explain the first statement in more detail? I'll admit I haven't had a chance to look at the data. Are you saying the data is not streamed in real time? or there is short a delay? Reason I am asking is the game already gave our co'ods, EDDI seems to read it instantly when we land, my understanding was the game now also sends that data when in flight.
Being a bit pedantic here, think you mean that you would write some software to connect to our ships inertial reference system, GPS would imply satellites are orbiting every landable planet in ED.