[time-nuts] GPS tick all over the place. Suspect aurora effects

paul swed paulswedb at gmail.com
Thu Jan 26 18:15:27 EST 2012


Yup just the first time I have seen the pps this crazy
But as we speak its settling down. So it was an effect for about an hour.
Regards
Paul.

On Thu, Jan 26, 2012 at 5:59 PM, Jim Lux <jimlux at earthlink.net> wrote:

> 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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