It isn't a question of absolute accuracy of the clocks, but of knowing
the time difference in two different places, which are in separate,
non-inertial frames. In practice, it is very difficult to keep two
clocks in absolute sync when they are located hundreds of miles apart on
the surface of the Earth. It is a complex problem in Relativity to back
out all the effects that introduce errors.
Chris
*******************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
On 11/20/2011 10:21 AM, Steve Dunklee wrote:
This article contains gps info and accuracy . It states it depends on the
earths movement and other factors and gives an accuracy of 14 nanoseconds. A 60
nanosecond difference in measurements is way off the accuracy of the gps clocks.
http://en.wikipedia.org/wiki/Effects_of_relativity_on_GPS#Relativity
cheers
Steve Dunklee
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