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Reports until 23:01, Tuesday 14 May 2019
H1 General
yannick.lecoeuche@LIGO.ORG - posted 23:01, Tuesday 14 May 2019 - last comment - 23:24, Tuesday 14 May 2019(49249)
Shift Summary - Evening

TITLE: 05/14 Eve Shift 23:00 – 07:00 (16:00-00:00), all times posted in UTC

STATE of H1: Locking

INCOMING OPERATOR: Cheryl

SHIFT SUMMARY: Lost lock several times around ENGAGE_DC_VIOLINS, eventually did initial alignment. After initial we had issues getting past CARM_TO_ANALOG, so eventually we reverted the changes made earlier today and began initial alignment again. After that we reached NLN fairly quickly, sorted through sdf changes, and went into Observing.

LOG:

23:00 (16:00) Start of shift

01:35 (18:35) Dropped out during commissioning work, starting initial alignment

02:36 (19:36) Done with initial alignment, beginning to lock

03:56 (20:56) Reverting earlier commissioning changes, beginning initial alignment again

04:36 (21:36) Finished with initial alignment, starting to relock

05:24 (22:24) At NLN, sorting through sdf changes with Georgia and Sheila before Observing

05:52 (22:52) Going into Observing

Comments related to this report
georgia.mansell@LIGO.ORG - 23:24, Tuesday 14 May 2019 (49252)

We also had a problem where the CO2Y laser losing lock kicked us out of observing a couple of times shortly after reaching NLN.

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