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24 GPS satellites carry atomic clocks

  1. Jun 17, 2006 #1
    Quoted from "http://hyperphysics.phy-astr.gsu.edu/hbase/gps.html#c1" [Broken]

    How do they know which of the points is the correct one? (see sentence in blod)

    Thank you!:approve:
     
    Last edited by a moderator: Apr 22, 2017 at 11:00 AM
  2. jcsd
  3. Jun 17, 2006 #2

    George Jones

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    I took a guess that one of the points doesn't lie on surface the Earth, and it seems that I was partially correct - see "http://www.trimble.com/gps/how.html" [Broken].
     
    Last edited by a moderator: Apr 22, 2017 at 11:00 AM
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