> Is this a typo on the Ashby-Relativity.htm web page? > > "At present one cannot easily perform tests of relativity with the system > because the SV clocks are actively steered to be within 1 microsecond of > Universal Coordinated Time (USNO)."
Brooke, I think it may be more dated than a typo. It's possible that early accuracy targets for GPS were just 1 us, with heavier steering. Now, as you know, it's down to ns short-term and tens of ns of UTC long-term. For a more detailed work by Ashby, see: http://relativity.livingreviews.org/Articles/lrr-2003-1/ /tvb _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
