For future missions they could probably detect a sat pass by an obvious bright dot moving in a straight line and then prevent that small area from being added to output photo. It would still be an issue for Hubble and a range of other older telescopes but some newer ones could receive a software update given the HW could handle the change.
For future missions they could probably detect a sat pass by an obvious bright dot moving in a straight line and then prevent that small area from being added to output photo. It would still be an issue for Hubble and a range of other older telescopes but some newer ones could receive a software update given the HW could handle the change.
If you detect it the image is already ruined. You need to predict where it’ll be.
FWIW, what you described is done by hobby astrophotographers. Satellite rejection during stacking:
https://live.staticflickr.com/65535/51169334733_c2f9b44508_o.png