Displaying report 1-1 of 1.
Reports until 16:30, Tuesday 28 October 2025
LHO General
thomas.shaffer@LIGO.ORG - posted 16:30, Tuesday 28 October 2025 (87800)
Ops Day Shift End

TITLE: 10/28 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Maintenance day today. Recovery has been troubling so far, we can get up to OMC_WHITENING but then lose lock. It will get to that point without issue, but then a quick 9Hz ringup in DARM will show up. I;ve attached a printout of the Trello of activities today, but none are glaring causes for something like this. The control room is currently looking into many possibilities and following up from 60W input with misaligned IM4,  ISS injections today, and other activities.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
14:36 FAC Randy Xarm n BTE sealing 21:59
15:15 FAC Kim EX n Tech clean 16:36
15:15 FAC Nellie EY n Tech clean 16:26
15:16 CDS Fil, Erik EY n RFM test 19:02
15:17 VAC Gerardo LVEA n CP1 fill line connect 18:45
15:20 FAC Eric site n Fire pump tests 15:40
15:22 VAC Jordan LVEA n Help at CP1 line then HAM4 AIP troubleshooting 17:25
15:28 FAC Tyler LVEA, VEAs n 3IFO checks 17:14
15:30 FAC Chris MX n Tractor clearing tumbleweeds 17:35
15:33 SUS Jeff CR n PRM meas. 19:03
15:54 VAC Janos EX, MX n Pump tests 18:43
15:58 SYS Mitchell LVEA n Parts hunt 16:11
16:05 PSL Jason CR n Ref cav tweak 16:06
16:16 SAF Safety tour EX, EY n Safety walkthrough 18:03
16:20 PEM Ryan S CR/LVEA n Magnetic injections 18:47
16:20 VAC Norco EX, MX n LN2 fill 18:47
16:37 FAC Kim LVEA n Tech clean 18:05
16:45 IO Keita, Rahul Opt Lab LOCAL ISS array 18:58
16:45 FAC Nellie LVEA n Tech clean 18:04
16:52 SEI Jim Remote n HAM6 HEPI FF injections 18:15
17:35 FAC Benton PUD Yarm n Grabbing equipment at transformer \ 17:55
17:35 FAC Chris Outbuildings n FAMIS checks 18:26
18:04 SAF Safety tour LVEA n Safety walkthrough 18:30
18:13 PCAL Rick PCAL lab local Grabbing blues 18:15
18:31 SAF Safety tour X1 BTE n Check on cracks, splaying of BTE 19:16
18:42 VAC Jordan, Anna LVEA N Join Gerardo CP1 18:59
18:53 TCS TJ LVEA n Turn TCS CO2s back on 18:54
18:54 CDS Marc LVEA n Wrapping up cable pulling HAM3/2 18:57
18:55 - Ryan C LVEA n Sweep 19:05
19:38 PCAL Rick PCAL lab local Parts 19:52
20:34 SPI Corey, Ryan S Opt Lab n Optics cleaning 22:47
20:51 SUS Rahul Opt Lab LOCAL Parts 22:06
21:04 TCS Matt Prep lab n Building racks 22:57
21:43 IO Keita Opt Lab LOCAL ISS array 22:46
21:45 SAF Safety tour FCES n Safety walkthrough 22:06
22:30 VAC Gerardo LVEA n Grab a cube for a cart 22:35
22:57 PEM Ryan C Opt Lab n Setup dust monitor 23:07
Non-image files attached to this report
trello_oct28.pdf
Displaying report 1-1 of 1.