Reports until 15:23, Tuesday 19 September 2017
H1 General (SUS)
edmond.merilh@LIGO.ORG - posted 15:23, Tuesday 19 September 2017 - last comment - 15:44, Tuesday 19 September 2017(38708)
OpLev at EY failed at Recent Power Glitch

It was just discovered and brought to my attention that this Oplev failed to recover after the glitch.

Comments related to this report
thomas.vo@LIGO.ORG - 15:44, Tuesday 19 September 2017 (38710)

Interesting to note, some oplevs came back after the power glitch on Saturday (ITMY) but some didn't (ITMX and ETMY) and ETMX wasn't affected at all.  The guardian for each optic seem to be in the aligned states according to the guardian and the slider bars aren't too different from when we were in the observing run (10's of urad) but the beams didn't come back even after I re-aligned to 24 days ago.

Today we vented the corner station which makes sense that the ITMX was a bit misaligned, but ETMX should be back to it's original position.

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