1) compression massively reduces that data requirement. 2) relatively simple processing on the satellites itself can cut down most of that data by only downlink

1) compression massively reduces that data requirement. 2) relatively simple processing on the satellites itself can cut down most of that data by only downlinking interesting observations. 3) If you're looking to target a carrier with a missile you also only have to look where you can actually deploy that missile to drastically cutting down the area you'd need to search.