aLIGO LHO Logbook

H1 General

ryan.crouch@LIGO.ORG - posted 16:01, Monday 01 May 2023 (69212)

OPS Monday shift summary

TITLE: 05/01 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 138Mpc
SHIFT SUMMARY:

Lock#1

Locked at NLN since 07:26UTC
- In Observing at 09:57UTC, out at 15:53:09 (3 SDF diffs appeared and quickly disappeared in EX_ISC)
- In Observing at 15:43:58, out at 17:38 for some CARM measurements and to take a new SQZ reference
Lockloss @ 17:59UTC

LOCK #2

Interventions:
- Find Yarm by hand after increase_flashes prompted me to after it struggled for a few minutes
- Struggled to find PRMI, had to tap on PRM a few microradians in Pitch and more in Yaw
Back to NLN @ 19:58, waited for ADS signals to converge for the camera servo, the CP1 overfill, a quick delivery to OSB receiving, some CARM measurements, and SQZ work
- In Observing at 21:18:17UTC, dropped out for a few seconds at 21:52:15UTC, someone reloaded a guardian node at the time so it might have been because of that? There weren't any SDF diffs to see, or they disappeared very quickly
- Back in Observing at 21:52:36UTC, out at 21:57:54UTC, for a PI_DAMPING_SWITCH channel that was then unmonitored
- Back Observing in at 21:59:48UTC
OMC glitch 21:30:11UTC, 21:40:29UTC

LOG:

Start Time	System	Name	Location	Lazer_Haz	Task	Time End
19:56	LVEA	LASER HAZARD	LVEA	YES	THE LVEA IS LASER HAZARD	Ongoing
15:13	FAC	Kim	Optics lab	N	Tech Cleaning	15:30
16:24	FAC	Mitch, Randy	EndY	N	Wind Fence work	22:18
16:40	FAC	Chris	EndY	N	Wind fence work	22:18
16:47	FAC	Cindy	MidY	N	Tech clean	17:58
16:56	FAC	Kim	MidX	N	Tech clean	17:54
17:16	CAL	Rick	PCAL lab	LOCAL	PCAL work	18:22
17:19	EE	Fil	CER	N	Inventory check	17:30
17:35	CAL	Elenna	CR	N	CARM measurement	17:53
17:42	CAL	Elenna	LVEA	Y	Check on SR785	17:51
17:48	SQZ	Vicky	CR	N	New SQZ reference	18:36
18:00	CAL	Elenna	LVEA	N	Check on SR785	18:17
18:57	CDS	Jonathon	MidX	N	Rack checks	19:25
20:00	SQZ	Vicky	CR	N	SQZ work	21:19
20:02	CAL	Dripta	PCAL	LOCAL	PCAL work out @ 21:33	21:33
20:07	SUS	Ibrahim, Austin	CER	N	Checking equipment	20:40
20:27	CAL	Elenna	CR	N	CARM measurement	20:30
21:02	CAL	Elenna	CR	N	CARM measurement	21:03
21:09	VAC	Travis & Gerardo	EndY	N	Mech room, check a pump	22:14