[time-nuts] Mains Frequency -again

[Hal Murray]

kevin at rowett.org said:
> Would  you describe the epoch for this offset data? 

I started collecting data many years ago.  I probably set the initial offset 
on the first graph I made to 0.

The problem comes when I reboot the system or PG&E drops power.  That turns 
into two chunks of data that need to get lined up somehow.  If it is a simple 
reboot, the break in under a minute and I can adjust the offset of the second 
segment so it looks good.  If power is off for more than a few seconds, then 
the lining up becomes more of a guess.

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I was thinking about this area the other day.

Does anybody know if the guys who run the grid publish anything I could use to 
adjust my offset to match theirs?  I'm looking for something like "At 1 AM 
last Sunday, the offset was 0."  0 is preferred so I don't have to worry about 
the sign.


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