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  Topic Review (Newest First)
02-13-2007 04:54 PM
Valiente Aren't GPS satellites in the same LEO (low earth orbit) as these satcomm birds?

Keep the sextant polished as well!

Edit: I discovered they aren't LEO ( like some satcomms...they are in the middle range between that and geostationary.

"Orbiting at an altitude of approximately 20,200 kilometers (12,600 miles or 10,900 nautical miles; orbital radius of 26,600 km (16,500 mi or 14,400 NM)), each SV makes two complete orbits each sidereal day, so it passes over the same location on Earth once each day. The orbits are arranged so that at least six satellites are always within line of sight from almost anywhere on Earth.[6]"


That means they are subject to cosmic rays, solar storms, "outages" and whatnot, but aren't likely to be dragged down by atmospheric expansion or other issues affecting LEO birds like Globalstar:

Wikipedia: the sailor's pal.
02-13-2007 01:33 AM
camaraderie Nope...pactor stays too!
02-13-2007 01:11 AM
EscapadeCaliber40LRC Cam - Better not throw out that SSB just yet.
02-12-2007 11:52 PM
Globalstar Failing

Looks like G-star satellites are failing faster than they can get them replaced. Big trouble. I rescind all previous recommendations for G-star until and unless this is resolved. Here's the full story:

Someone was claiming something similar to this the other day in terms of service and I disputed it. Apologies...I was wrong.

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