Very nice project! I have played around with it for a while and noticed that the top right satellite/debris selector doesn't seem to be working correctly as the "Satellites Only" and the "Debris Only" options don't seem to change anything on the ground track view.

I'm wondering if you have any information on Celestrak data licenses and usage terms? Their data comes from Space-Track (plus some directly from operators) which isn't very permissive with its usage and I never found anything more specific on Celestrak's website.

Reminds me of a space version of Flighty, best of luck with it!