david.barker@LIGO.ORG - posted 21:51, Sunday 11 June 2023 - last comment - 09:58, Monday 12 June 2023(70350)
Atomic Clock 1PPS out-of-range on MSR timing comparitor
The timing system has a corner station error: the MSR atomic clock 1PPs difference went from -159nS to 0.11S at 19:31 PDT this evening.
This signal is for verification purposes and does not drive the timing system. We will take a look at what has happened to it in the morning.
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The atomic clock was fairly stable over the past 50 days or so, and then jumped. Not sure what could cause this short of a power glitch.
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