<Snipped quote by Mammalia>
Yes. An entire fleet in an attack position was detected from the sattelites. However, the base findings AND eye witness accounts only point to one or two ships.
Is that really a problem right now, then? I can potentially see it missing objects altogether, but if your satellites detected fleets and were unable to pre-empt their arrival, then no matter how many more ships arrive that you cannot notice you will not be able to do anything about them until they get close enough to interact with, anyway.