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" ... Accuracy. The appeal of low-earth orbit is that satellites are closer to attacking weapons and thus can generate target-quality tracks. Satellites in geosynchronous orbit are too far away to do that. But satellites in lower orbit are moving at thousands of miles per hour relative to the earth’s surface and have a limited field of view, so they must be proliferated and crosslinked to maintain a track—otherwise the track will be lost as the threat disappears over the horizon. The low-earth satellites must be sufficiently numerous so that at least two satellites can see an incoming weapon at any given time, providing the kind of three-dimensional view necessary for accurate characterization of the threat’s position and velocity. This task may need to be performed against hundreds of incoming weapons at the same time. ... "
" ... In fact, it’s such a hefty price-tag that SpaceX is getting almost as much money for a single Falcon Heavy mission as the $337 million ULA is getting for two missions. We don’t know details about the missions because they’re all secret, but industry insiders say that all three payloads are sizable, and headed for geosynchronous orbit. ... "
" ... Spend the summer in geosynchronous Earth orbit aboard Dedon's hanging lounger. The design-centric outdoor-furniture maker, based near Hamburg, crafted this floating bower to take advantage of--and withstand--the weather at its Philippines luxury resort, a.k.a. the Outdoor Living Lab. Woven from Dedon's sturdy proprietary fiber, it is suitable for placing on its own rotating stand, or hanging from a backyard tree or the beams of your veranda. An optional curtain turns the whole thing haremlike. Hanging version shown. $6,515. --Richard Nalley ... "
" ... Technological failure. Other nuclear nations do not invest in strategic surveillance capabilities the way America does. Russia in recent years has not had a single missile-warning satellite in geosynchronous orbit -- the best vantage point from which to monitor U.S. nuclear moves. Moscow's reliance on ground-based radars leaves little time for reflection if danger is detected, and false warnings occur regularly. As Anthony Barrett of RAND has noted, Russia's automated system for launching if leaders are killed could cause catastrophic errors. ... "
" ... The limitations. If all you wanted was continuous coverage from space of the entire surface of the Earth, a small number of geosynchronous (orbiting at the right distance so that they're always over the same point on Earth's surface) satellites would do the job. This is a fine location for many Earth-observing satellites, as well as many satellites that only need to send-and-receive a small amount of data. However, there are two fundamental limitations to geosynchronous satellites. ... "