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Reports until 08:01, Sunday 22 September 2019
H1 General
yannick.lecoeuche@LIGO.ORG - posted 08:01, Sunday 22 September 2019 (52064)
Shift Summary - Owl

TITLE: 09/22 Owl Shift 07:00 – 15:00 (00:00-08:00), all times posted in UTC

STATE of H1: Observing

INCOMING OPERATOR: Patrick

SHIFT SUMMARY: Rode through a 5.6 EQ near Tonga early in the shift, then had a sudden lockloss about halfway through. Relocked and in Observing for 1.5 hours.

LOG:

07:00 (00:00) Start of shift

08:04 (01:04) Going to EQ mode for 5.6 near Tonga

08:37 (01:37) Transitioning back to windy.

11:41 (04:41) Sudden lockloss, so sign of seismic or wind activity, no ADS excursions, no rung up ASC channels.

11:57 (04:57) Issues with green arms and finding IR, going into initial alignment

12:18 (05:18) Initial alignment complete, starting re-lock

12:31 (05:31) Lockloss from CARM_TO_TR

12:47 (05:47) Lockloss from ENGAGE_ASC_FOR_FULL_IFO

13:24 (06:24) At NLN, going to Observing. This time I didn’t adjust DRMI to optimize gains, and I waited for a few minutes at PREP_ASC_FOR_FULL_IFO.

15:00 (08:00) End of shift

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