aLIGO LHO Logbook

LHO General

ryan.short@LIGO.ORG - posted 16:30, Monday 14 July 2025 (85751)

Ops Day Shift Summary

TITLE: 07/14 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Two locklosses today, one of which during commissioning time from a M6.8 earthquake out of Panama. The second lockloss we're still recovering from, and even after running an initial alignment, there have been several lockloss at low states, possibly from rising wind speeds.

14:26 - Lockloss from LOWNOISE_ASC
15:42 - Reached NLN, jumping into commissioning
17:25 - Entered EQ mode
17:48 - Lockloss
18:28 - Ground has calmed down, starting lock acquisition
20:18 - Observing
21:56 - Lockloss - alog85747
- 22:33 - Lockloss during DRMI, starting initial alignment
- 22:52 - Alignment finished, starting lock acquisition

LOG:

Start Time	System	Name	Location	Lazer_Haz	Task	Time End
22:56	SAF	LVEA	LVEA	YES	LVEA IS LASER HAZARD	14:34
14:50	FAC	Randy	MY	N	Checking on forklift	15:05
15:46	PEM	Robert, Sam	LVEA/CR	-	Accoustic injections	17:55
16:29	FAC	Kim	MY	N	Technical cleaning	17:30
16:29	FAC	Nellie	MX	N	Technical cleaning	17:13
17:16	FAC	Tyler	BT near EX	N	Bees	17:40
17:33	PSL	Jason	MX	N	Inventory	18:04
17:59	PEM	Robert	LVEA	-	Replacing viewport covers	18:16
22:46	ISS	Keita	Optics Lab	N	ISS array work	Ongoing