Light time correction and abberation
Need for high fidelity point mass dynamics and ranging for OD.
Some public references:
- https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/spkezr_c.html
- https://physics.stackexchange.com/questions/73218/ephemeris-calculations-light-time-correction-of-the-moon
- https://en.wikipedia.org/wiki/Light-time_correction
- https://en.wikipedia.org/wiki/Aberration_(astronomy)
A simple algorithm should be implemented in Cosm
.