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

[Scott Newell]

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