[time-nuts] Re: Power grid logging during the eclipse?

[willl will]

I do see the same here in CA:
https://github.com/will127534/RaspberryPiAtomicNixieClock/assets/6110733/988c5938-0da5-4e77-88c8-934de2390b42
The time scale is in UTC

What might be the cause?

Jeremy Nichols via time-nuts <time-nuts at lists.febo.com> 於 2024年4月9日 週二
上午4:49寫道：

> I have a monitor at my home in California. It is monitored by a university
> in Kentucky. They watch the frequency nationwide. I can ask them if they
> saw anything strange during the eclipse.
>
> I also have a Ting monitor that reports to me weekly. It looks for voltage
> spikes, dropouts, etc.  I’ll see what the next report looks like.
>
> Jeremy
>
>
> On Mon, Apr 8, 2024 at 8:47 PM Scott Newell via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
> > Was anyone logging the eastern US power grid today during the
> > eclipse? I've got some pretty simple hardware at home and about 50
> > miles away at work. Both are showing a bit of weirdness today around
> > 19:00 UTC. I'd be curious to see if anyone else sees the same. (I'll
> > email and ask the UTK power grid group tomorrow.)
> >
> > These are simple low resolution graphs plotted by munin on 5 minute
> > intervals. The logs have far more sample points, but I'll have to
> > find time to run gnuplot over them for more details.
> >
> > Accumulated error in cycles (note dip around 19:00 UTC):
> > https://www.n5tnl.com/time/eclipse_2024/line_cycles-day.png
> >
> > Frequency averaged over 1 hour:
> > https://www.n5tnl.com/time/eclipse_2024/line_freq_1h-day.png
> >
> >
> > --
> > newell  N5TNL
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