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Reports until 07:42, Thursday 07 November 2024
LHO General
corey.gray@LIGO.ORG - posted 07:42, Thursday 07 November 2024 - last comment - 10:41, Thursday 07 November 2024(81120)
Thurs DAY Ops Transition

TITLE: 11/07 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Aligning
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 3mph 3min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.21 μm/s
QUICK SUMMARY:

H1's not made it back to NLN over 24 hrs (with a low duty cycle overall this week[s]).  A quick glance shows ALSy is not stable as seen yesterday afternoon.  Just chatted with Sheila and she suggested checking stability of the PMC overnight after the PSL NPRO Freq temperature change from yesterday.

Microseism did increase a bit in the last 24hrs, but has also come back down to where it was about 18hrs ago; very low winds.

The Ops Work Station (cdsws29) had a bad "left" monitor (started flickering yesterday)---Jonathan is replacing it now.

Comments related to this report
camilla.compton@LIGO.ORG - 10:16, Thursday 07 November 2024 (81124)

After Daniel got back, Corey locked the Green arms fine and started locking. We couldn't catch PRMI even after CHECK_MICH_FRINGES so I started an initial alignment at 17:13UTC. I had to go though DOWN INIT twice, as the first time the  PMC input power wasn't reduced to 2W stayed at 10W, maybe as we went though CHECK_SDF).

After INITAL_ALIGNMENT, locking has been fully automated. We lost lock at ENGAGE_AS_FOR_FULL_IFO once and the second time got past this step and are currently at POWER_10W.

oli.patane@LIGO.ORG - 10:41, Thursday 07 November 2024 (81125)
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