> In short, the GPS to UTC time correction polynomial got screwed up.
Yes, that was an exciting time!
----
For newcomers to the list, the bizarre GPS 13 microsecond jump was a hot topic
on time-nuts back in 26-Jan-2016. The thread starts with an observation by Paul
Boven:
https://www.febo.com/pipermail/time-nuts/2016-January/095667.html
And includes detailed follow-up by Martin Burnicki:
https://www.febo.com/pipermail/time-nuts/2016-January/095692.html
https://www.febo.com/pipermail/time-nuts/2016-January/095756.html
https://www.febo.com/pipermail/time-nuts/2016-January/095714.html
https://www.febo.com/pipermail/time-nuts/2016-January/095753.html
If you have time, read the full "GPS jumps of -13.7 us?" thread from the
archives:
https://www.febo.com/pipermail/time-nuts/2016-January/subject.html#95667
And also the "GPS PRN 32" thread:
https://www.febo.com/pipermail/time-nuts/2016-January/subject.html#95682
----
As far as monitoring mains phase -- a 13 microsecond step would be lost in the
normal jitter and drift of power line timing. My 60 Hz logging was unaffected
by the event because I use a cesium reference (not GPS or GPSDO).
/tvb
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