Awesome :) I've added the github repo to my comment! And yes, we were using satellite.js [1] which provided us with the propagation functionality together with

Awesome :) I've added the github repo to my comment! And yes, we were using satellite.js [1] which provided us with the propagation functionality together with a static set of TLEs from space-track [2] - I'll add an github issue for adding support for dynamic aggregation of that data right away actually :) [1] https://github.com/shashwatak/satellite-js https://github.com/shashwatak/satellite-js [2] https://www.space-track.org https://www.space-track.org