https://github.com/dahlend/kete
Research grade orbit calculations for asteroids and comets (rust/python).
I began working on this when I worked at caltech on the Near Earth Object Surveyor telescope project. It was originally designed to predict the location of asteroids in images. I have moved to germany for a PhD. I am actively extending this code for my phd research (comet dust dynamics).
Its made to compute the entire asteroid catalog at once on a laptop. There is always a tradeoff between accuracy and speed, this is tuned to be <10km over a decade for basically the entire catalog, but giving up that small amount of accuracy gained a lot of speed.
Example, here is the close approach of Apophis in 2029:
https://dahlend.github.io/kete/auto_examples/plot_close_appr...