Re:The World Economy Runs on GPS. It Needs a Backup Plan
by labster on Thursday July 26, 2018 @12:59AM
(#17615160)
As far as I know, all of those constellations are vulnerable to Kessler syndrome. Ground-based equivalents (eLoran) wouldn't be.
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Re:The World Economy Runs on GPS. It Needs a Backup Plan
by rzimmerman on Thursday July 26, 2018 @02:47AM
(#17615517)
GPS satellites are in an unusual orbit (between LEO and geosynchronous) where there is not a lot of debris. They’re also highly redundant and the constellation can lose several satellites without dropping service. Jamming is honestly more of an issue than debris.