But not necessarily when they want to. The best imaging satellites are in fairly low and polar orbits. The shuttle and the satellite might not ever cross paths during a mission, even though the satellite goes over everyplace on earth nominally twice a day. Don't believe everything you see on "Enemy of the State" (a great movie nonetheless). And when they did cross paths, they might be moving right smartly relative to one another. Some or even most of that "blur" might be compensatable, since the same is true of points on the earth, only less so.