[time-nuts] [Fwd: Health of GPS constellation questioned -- "recently there have been more satellite outages than ever before"]

Glenn glenn at net127.com
Wed Sep 6 10:23:26 EDT 2006

Here's a reply from my mother, a professional surveyor.

K Powers wrote:
> It's always been true for us that GPS has times of the day when either 
> there aren't enough satellites or the configuration is bad (high PDOP, 
> over 6). Last summer we had to take a GPS break from 11 to 12:30. My 
> company recently purchased a set of receivers that also track GLONASS 
> and it has helped immensely.

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