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