Reports until 16:30, Tuesday 23 September 2025
LHO General
ryan.short@LIGO.ORG - posted 16:30, Tuesday 23 September 2025 (87100)
Ops Day Shift Summary

TITLE: 09/23 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 152Mpc
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY: Busy maintenance day that we've just recovered from. Maintenance activities ran slightly long, and relocking took longer than expected due to a lockloss during INJECT_SQUEEZING from an unknown source. The AIP is still running at HAM6. H1 has been locked for about 30 minutes.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
15:03 FAC Kim, Nellie LVEA N Technical cleaning 16:19
15:03 VAC Gerardo, Jordan LVEA n HAM5/6 AIP work 16:47
15:03 FAC Ken LVEA N Cable trays HAM5/6 18:24
15:07 PEM Sam LVEA n Accelerometers on BSCs7/8 15:40
15:13 CAL Tony, Dripta PCal Lab Local Setting up for measurement 18:07
15:16 CDS/SUS Fil EY n Replacing EY UIM sat amp 16:01
15:17 PSL Keita, Ryan S PSL enc Local PSL beam profiles and inspections 17:35
15:19 VAC Norco MX n LN2 fill 17:52
15:25 PCAL Tony, Dripta EY YES PCAL meas 17:53
15:28 FAC Chris outbuildings n FAMIS checks 16:53
15:34 FAC Christina OBS rec. n Forklifting crates to OSB receiving 16:07
15:42 VAC Anna LVEA n Joining the other vac'rs at HAM5/6 16:31
16:01 VAC Travis MY n More pump work 19:01
16:02 CDS/SUS Fil LVEA n More sat amp swapping for ITMs UIM, BS M2, PRM M2 M3, SRM M2 M3 17:25
16:22 FAC Kim EY n Tech clean 17:46
16:36 FAC Nelly EX n Tech clean 17:20
16:37   TJ LVEA n Giving Keita a camera battery 16:40
16:48 VAC Pump LVEA HAM5/6 n AIP pumping Ongoing
16:54 SYS Betsy LVEA n Putting parts away 17:24
17:10 FAC Nelly EX n Tech clean 17:11
17:10 FAC Nelly FCES n Tech clean 17:45
17:18 VAC Gerardo, Jordan LVEA n Getting parts in the W bay 18:20
17:30 CDS Fil Mech Mezz n BHD electronics power supplies on mech room mezz 19:06
17:32 VAC Norco EX n LN2 fill (start time unknown) 18:26
17:38 SUS/SEI Jeff, Oli CR n Drive HAM2/5 ISI 18:23
17:49 ISC Camilla, Elenna LVEA LOCAL IOT2 table beam profiling 19:05
17:51 SEI Jim LVEA n Placing L4Cs under HAM6 19:00
18:14 SYS Betsy LVEA n Parts 18:19
18:18 - Ibrahim, guest LVEA n Tour 18:48
18:31 ISC Daniel LVEA N Cable length measurements 19:06
18:37 FAC Ken Opt Lab N Lights 19:37
18:49   Ibrahim, guest Overpass N Tour 19:49
18:49 VAC Jordan LVEA N Looking at pump 18:54
18:52 OPS TJ LVEA N Sweep 19:07
20:24 VAC Travis MX, MY N Measuring parts 20:50
22:30 VAC Jordan, Pfeiffer reps MY N Tour for reps 00:30