The Clohessy-Wiltshire equations are a simplified (linearized) model that is applicable under few assumptions:
- close range
- circular target orbit
- no disturbances
My question: Up to which boundaries are these assumptions valid?
- Up to which relative distance can CW equations be used?
- Up to which eccentricity?
- For which maximum time span is a prediction based on CW reasonable?
I guess the answers might not be absolute numbers, but maybe one can say something like: at a relative distance of 10 km the position error is about 10%. Or maybe there is an approximation or formula.