Hypothetically, if one were to point the James Webb at Earth:
- Could it be focused in such a way that the entire Earth was in it's FOV, or is it too close?
- If this were possible, what would be the smallest object that could be resolved in orbit?
- If this weren't possible, could it be focused in any way such that things in orbit could be resolved?
Bonus) If none of the above is possible, what satellite currently offers the best capabilities for imaging other things in orbit? Ideally with the widest possible FOV.
Yes, I know it's not optical, and yes I know it's not really designed for this, but I've got an idea and I'm wondering if it would even be plausible.