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I'm not educated on satellites at all myself but wondered the same thing. Surely satellites have beacons or towers around the earth to calibrate itself?
by dekz 16y ago
I'm not educated on satellites at all myself but wondered the same thing. Surely satellites have beacons or towers around the earth to calibrate itself?
- marklabedz 16y agoKind of. Its called WAAS (Wide Area Augmentation System): http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System
- sigstoat 16y agouh no. the problems WAAS solves are not big ones for spacecraft, and the accuracy it provides isn't particularly necessary for most of them. lots of them don't even have GPS, and use other means (star tracking) of positioning themselves.
- marklabedz 16y agoGuess I mis-read the parent's question last night. You're right.