They probably do, but what is the coverage like? They aren't streaming and storing every square meter of the earth all at once, such that they can just roll ba

They probably do, but what is the coverage like? They aren't streaming and storing every square meter of the earth all at once, such that they can just roll back several days and start poking around, meter by meter, minute by minute. Real time high resolution satellite streams are undoubtedly something that need to be scheduled in advanced for particular times and places.