Reports until 12:56, Saturday 05 December 2015
corey.gray@LIGO.ORG -
posted 12:56, Saturday 05 December 2015 - (23974)
Mid Shift Summary: Mysterious Lockloss
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19:56UTC (11:56amPST) H1 dropped out & no obvious reason why.
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19:58 - 20:30 Lock Acquisition Part 1
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Problems getting through CHECK_IR (about 3-4 attempts), but finally made it past this step.
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Tried locking DRMI, but alignment looked bad. Tried locking PRMI, but no lock within 8min. Started Initial Alignment (took about 23min). Now giving Locking another go.
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20:30-20:53 Initial Alignment
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20:54 - current: Lock Acquisition Part 2
Woes Continue
LVEA useism has been high for last 6hrs. It's currently at 0.9um/s. Not the worst period of useism, but certainly similar to other times when we had issues locking. (see plot of last 55 days).
Also running with all BSCs in their standard 45mHz configuration, EXCEPT for ETMx which Jim alogged about earlier.