jim.warner@LIGO.ORG - posted 05:14, Wednesday 18 December 2019 - last comment - 07:47, Wednesday 18 December 2019(53956)
SQZ keeps kick us out of observe
Not sure what is going on, but twice now the squeezer has kicked us out of observe. Each time the guardian reaches the SQZ_ASC state, and won't move on its own. First screen is the log, second are the sdf diffs I find. Each time I have inited the guard, SQZ relocks and the SDF diffs clean up. But it's happened twice now in about 10 minutes.
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Just happened again. Seems there was some OPO crystal work yesterday, from a Daniel/Sheila alog 53943. Is this fallout from that?
SQZ won't stay locked for more than 3 minutes or so now. Not sure what to do about it, can't get to observing, range is low, but we're still "locked", just not nominal. Guess I'll leave it for Jeff and the commissioners to try to sort out.