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Reports until 16:54, Thursday 09 April 2026
H1 General
anthony.sanchez@LIGO.ORG - posted 16:54, Thursday 09 April 2026 (89843)
Thursday Morning Ops Report

TITLE: 04/09 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:
HAM3 +Y door is removed
BSC1 door bolts are being broken.

GRB- Short E632727 17:33 UTC  notification (IFO status: Vented .)

Both HAM3 doors are Off. 

I have attached screen shots of all of the SDF Diffs from EX & EY before the CDS team rebooted  IOPs for both End stations after Marc replaced the IOP Ribbon cables.

20:26 UTC EX IOP Restarts 
20:58 UTC EY IOP Restarts 
Started to bring EX back up at 21:12 UTC untripped watchdogs for HEPI & ISI.

Fil is unplugging some IMC cables.

JM3 Looks to have grown in motion over the last few hours for some reason. Oli believes that JM3 is "Over damped" due to the wrong gain not being reverted,  Oli's alog with more detailed coming soon.

BSC2 dust mon counts for the day.
 

Start Time System Name Location Lazer_Haz Task Time End
14:34 FAC Randy , Eric LVEA BSC2 n Working on platforms near  BSC2 & Fly Engine Hoste 15:05
14:34 FCA Nellie & Kim LVEA n Technical cleaning and Supplies 15:17
15:46 FAC Nellie & Kim LVEA N Techincal cleaning & Supplies 17:01
16:15 VAC Randy LVEA N Preparing to break bolts on BSCs 19:15
16:29 VAC Gerardo, Jordan, Travis LVEA HAM3 N Prepping for removing Bolts. Gerardo Still in. 18:50
16:46 VAC Corey LVEA N Prepping to break bolts off of BSCs 18:58
17:23 PSL Jason Mech Rm N Draining PSL Chiller 17:34
17:33 Safety Richard LVEA N Helping with Door removal 17:33
17:48 FAC Tyler & Conel Oil Water tank N Refueling diesel 17:48
17:51 BHSS Elenna, Oli Optics Lab YES Working on BHSS 19:28
18:21 SEI Jim LVEA N Unplugging a few cables 18:41
19:00 FAC Kim LVEA N Getting Supplies. 19:03
19:22 BUSI Kim B. Mids & Ends No Reconnaissance mission for Documents. 21:52
19:38 SUS Corey LVEA BSCs N Breaking Bolts on BSC1 & 2 22:10
19:46 EE Fil CER & LVEA N Cabling in CER & Output Arm 22:46
20:03 SUS Randy LVEA N Breaking Bolts Off BSC1 & 2 22:19
20:28 VAC Gerardo & Jordan LVEA BSC1 N Turning bolts off, Gerardo out early 22:12
20:43 CDS & EE Erik & Marc EX &EY N Replacing Ribbon cable & Rebooting IOPs 22:00
20:49 VAC Travis LVEA N Helping with Bolt removal and supplies. 22:05
20:54 Safety Richard LVEA N Seeking Fil 21:24
20:56 SUS Oli LVEA N Looking for parts 22:31
21:34 BHSS Oli & TJ Optics lab N Working on Manta Ray 23:26
21:35 SEI Jim LVEA N Locking HAM3 23:23
21:57 Tour Elenna & Tour Control RM & Overpass n Giving a tour 21:57
22:21 sus Richard LVEA BSC2 N Setting up camera for Beam Splitter Swap 23:08
22:39 VAC Gerardo, Jordan, Travis LVEA N Checking BSC2 work 23:11

 

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