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The tech might not be hard, but stationkeeping an orbit on top of a target is, unless you have optics that can handle 36,000 kilometers of distance (geosynchron
by jsmthrowaway 9y ago
The tech might not be hard, but stationkeeping an orbit on top of a target is, unless you have optics that can handle 36,000 kilometers of distance (geosynchronous). All other, lower, orbits involve the satellite hauling ass across the ground, usually at 5+ kilometers per second. The video would be great for about five seconds.
Real spy satellites have time windows and image like hell within the window, then adjust for the next orbit and wait 90 minutes. They’re often in polar orbit, too, because then you get different parts of Earth as it rotates under you. Satellite surveillance is quite tedious, and the enemy knows where and when they are.