Seven satellites. One keeper: you. Days only count while the fleet is alive, and debris never leaves on its own.
No repairs. Click launch windows to replace dead satellites, and fly the tug to capture debris before it cascades. Windows shrink. Debris does not.
Fly to a wearing satellite, then click and hold to repair it before it fails. Keep the fleet alive and the orbit clean.
Every keeper gets logged before flight. Thirty seconds, then you fly.