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Reports until 04:26, Tuesday 13 October 2015
H1 General
cheryl.vorvick@LIGO.ORG - posted 04:26, Tuesday 13 October 2015 - last comment - 04:45, Tuesday 13 October 2015(22457)
Ops Mid Shift Update: 11:12UTC

Lock loss at about 9:30UTC, and while nothing is broken, many small issues to relaocking.

Bottom Line - I can see the useism effecting the locks; arms in green, arms in red, PRMI, and DRMI, and that's made relocking twitchy.

 

Details:

- 3 or more times, I had the the PRMI locked and aligned, and when I brought SRM back in, it didn't just break the PRMI, the SRM watchdog tripped

- at least two times, HAM5 ISI also tripped

- during one of those, the BSC2 ISI tripped

- at least 3 times the DRMI locked but not good enough for WFS, and broke before I could manually fix it

- once DRMI locked and WFS did engage, I let it sit for a while, as I took a much needed break, if you must know, and even then it broke on it's way to Engage ASC

- DRMI just relocked and at 11:21UTC, it looks like the IFO might make it back to Low Noise

- at 11:25UTC, IFO is in Engage ASC and looks OK

 

Comments related to this report
cheryl.vorvick@LIGO.ORG - 04:45, Tuesday 13 October 2015 (22458)

 BSC chambers switched to Quiet90 ISI Blend Filters, and I accepted changes in SDF in order to return to Observe - screen shots attached.

9:31:32UTC - Lock loss, I haven't investigated

11:39:43UTC - IFO returned to Observe

Images attached to this comment
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