So, if I take your script into a program called touchdesigner, instead of using it to motion track an 'object' I use your code to apply a null layer with all your 'parameters', start that engine running. But what am I tracking?

On a separate engine, I write a quick script to import in realtime the raw trajectory data from space x, set that running as another null layer.

The third engine is a simple alpha mask image of the 'ISS' this could be made even more realistic, unlike yours, by using a rendered 3d wireframe model using Houdini, input the live ISS rotation and altitude data, which will rotate the wireframe model independently in realtime, this is attached to the Space x data engine and set running.

Now I have the ISS still or 3d image moving through time, locked to the realtime live data from space X.

4th engine is the 'live' video from your telescope, showing the sky moving and trees and all that shit that makes it feel 'real'but nothing else. This runs as the background layer using your 'motion tracking code' to record the footage from your telescope. No issue their your code works, its a simple motion tracking script and essentially tracks an 'object' through space relative to time.

All 4 engines running in realtime, all locked as one image using real live data outputted to a pre-comp and then inputted through your computer HDMI/sdi cable into Youtube 'live' feed and we're done.