Everyday Astrodynamics

Find the repo and corresponding topics on GitLab!
Introduction
There are some topics in astrodynamics (especially in the operational context) that I wasn’t able to find in a book so far. In most cases they are fairly simple problems, but I thought it would be nice to start cataloguing them in a repository for my future self in case I need them ever again. That repository is public, so feel free to stop by and see if there is maybe something that you find interesting! Sometimes I also like to write blog posts about these topics!
Source code
You can find the full repo on GitLab.