Moving Target Stray Light Considerations
PLACEHOLDER-DO NOT DELETE!
There will be strategies to handle planets impinging on an FGS during science observations of a satellite.
Show a couple of examples of PSFs convolved with Jupiter's disk...
FGS impingement by planets
One concern for observers of satellites around bright planets will be "impingement," when the limb of the planet encroaches on the FGS field-of-view to any extant. In some cases the the stray light could compromise the science observation.