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Reports until 16:37, Wednesday 10 April 2024
H1 General (DetChar)
oli.patane@LIGO.ORG - posted 16:37, Wednesday 10 April 2024 (77098)
Ops Day Shift End

TITLE: 04/10 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 160Mpc
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: One lockloss today with an easy relock. Some calibration work on the HVAC system that caused more fan noise in the OSB from 15:00-16:00UTCish. Rest of the day was quiet. We hit our current highest O4b range, 167.6Mpc!
LOG:

15:00ish-15:30ish Calibration of the CS HVAC system(77092) - fans much louder than normal - tagging Detchar

15:00UTC Detector relocking and at LOWNOISE_ASC
15:06 NOMINAL_LOW_NOISE
15:09 Observing

15:45ish HVAC calibration done but fans still slightly louder than normal while cooling the CS to correct temps - detchar
18:15-18:19UTC Richard and Eric going into LVEA to check for HVAC noise - detchar

19:46 Lockloss

20:41 NOMINAL_LOW_NOISE
20:56 Observing

Start Time System Name Location Lazer_Haz Task Time End
14:59 FAC Karen MY n Tech cleaning 16:00
16:02 VAC Janos+others MY n Vacuum tour 18:17
18:15 FAC Richard, Eric LVEA n Quick hvac noise check 18:19
20:17 VAC Gerardo, Jordan FCES n Checking cable racks 21:00
21:39 VAC Gerardo OSB receiving door n Moving stuff 22:09
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