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2007-11-11 16:55:36 · 5 answers · asked by Grace 1 in Science & Mathematics ➔ Astronomy & Space
3 or more.
2007-11-11 17:03:17 · answer #1 · answered by Demiurge42 7 · 1⤊ 0⤋
2 satellites will tell you your location on Earth.
3 satellites will tell your location and altitude
More than 3 satellites will cause your error rate to get smaller and smaller causing your accuracy to be better.
3 satellites might give you a 10 meter accuracy but more than that will cause to accuracy to get better ie; 4 meters, 3 meters and even down to 2 meters.
2007-11-11 20:45:47 · answer #2 · answered by Apachejohn 3 · 0⤊ 0⤋
It only takes two satellites to tell where you are.
For a positive confirmation and information on your altitude, you need three satellites.
2007-11-11 22:53:09 · answer #3 · answered by zahbudar 6 · 0⤊ 0⤋
at least 3 its called triangulation
2007-11-11 17:39:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Three gets you close. The more you have the more accurate you get.
2007-11-11 17:40:14 · answer #5 · answered by Anonymous · 1⤊ 0⤋