[time-nuts] GPS jump

John C. Westmoreland, P.E. john at westmorelandengineering.com
Thu Oct 9 19:54:06 EDT 2014

Hello Jim,

I am just a novice here - but, when you say noticeable, can you please tell
us how noticeable?  What is a small downturn vs. a noticeable one?

I just put up an outdoor GPS antenna.  If there is anything I can do to
possibly help, please give me instructions.
I do not have direct access to any Hydrogen masers at the moment.

John W.

On Thu, Oct 9, 2014 at 4:43 PM, Jim Palfreyman <jim77742 at gmail.com> wrote:

> Folks,
> We look after 5 separate hydrogen masers spread all over Australia and we
> collect tic phases between the masers and the GPS.
> On around ~Oct 7 we have noticed that the normal steady straight line (with
> standard daily noise) took a noticeable downward turn - on all 5 masers.
> Did anyone else who tracks H-masers notice this as well?
> Is it JPL making corrections?
> Jim Palfreyman
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