Reports until 16:40, Friday 31 October 2025
H1 General
anthony.sanchez@LIGO.ORG - posted 16:40, Friday 31 October 2025 (87892)
Spooky Halloween Ops Day Shift Report.

TITLE: 10/31 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 149Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:
H1 stayed locked througout the entire shift But there was some DARM commotion from 20 ~40 Hz today 
The "Control Room Collectived" decided, warrantlessly, to blame the person slowly driving the boom lift down the length of the beam tube sealing cracks in the top of the beam tube.
We got him on the phone, and the PEM expert asked him to dance do a Seismic injection [18:08 UTC] while we watched him from the roof cameras. 
Turns out the 20-40 Hz noise was not from the boom lift  & may have been from the artillery range west of here.
 

18:59 Superevent Candidate S251031cq  !!



LOG:
                                                                                                                                                                                                                                                                                                

Start Time System Name Location Lazer_Haz Task Time End
15:01 FAC' Randy MidX N Caulking Beam tube & Robert's Seismic Injection test 20:05
18:06 FAC Kim Receiving N Lifting receiving door 18:11
20:04 SPI Ryan S Optics lab N Cleaning opitcs 20:50
22:38 OPS RyanC Optics lab N Swap dust monitors for huddle test 22:47