On 1/26/12 2:08 PM, paul swed wrote:
We are talking parts in the -9th but I am using a hp3801 and the general
software that lets you see the 1 sec variation.
I had never seen this behavior before and thought the oscillator must be in
trouble. Measured it against a local RB and it was stable.
Then it hit me, could this actually be the effects of the aurora?
I am thinking it just might be.
Regards
Paul
_
google for "Space Weather Effects on GPS"
there's a presentaton by Thomas Bogdan at the Space Weather Prediction
Center that gives you some numbers to work with.
10s of meters effects aren't unusual.
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