A simple python package for generating astrometric tracks of single stars and the center of light of unresolved binary, blended and lensed systems. Includes a close emulation of Gaia's astrometric fitting pipeline.
https://astrometpy.readthedocs.io/en/latest/
pip install astromet
Still in development, functional but may occasional bugs or future changes. Get in touch with issues/suggestions.
Requires: numpy astropy scipy numba matplotlib (for notebook)