Really cool concept! Though the orbital mechanics are a bit wonky, I'm super impressed with how well they work, given the short amount of time you had to put this all together. I'd love to see this idea expanded on further. Maybe generate a finite number of satellites and once the ship destroys them all, you get to the next level, which is more of a challenge. Maybe even some hazards like a debris cloud that can damage the ship, and some variety of asteroids, artificial satellites, etc. All in all though, awesome work and I really enjoyed playing it.