Reports until 18:01, Thursday 11 December 2025
H1 General
anthony.sanchez@LIGO.ORG - posted 18:01, Thursday 11 December 2025 (88488)
Thursday Ops Shift Start

TITLE: 12/12 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 4mph 3min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.41 μm/s 
SHIFT SUMMARY:

Initial_Alignment completed quickly thismornign with no intervention.
LL @ Start_TR_CARM

NO_IR found message when at CARM_TO_TR
Manualed back to Start_TR_CARM
LL @ Start TR CARM again

Matt noticed that ETMX Ring Heater has not been on for 36 hours. 

Reconfig of DAQ 0 leg, trying to pull a machine out. See Alog by Jonathan ***pending****
DC0 Status indicators may blink red on CDS Overview. 

TR_CARM Issue update: 
There is a perception that Beckhoff maybe have a "sticky slider" issue, So Dr. Driggers has pushed all buttons asscoitated with Corner 5 Beckhoff ~ 18:15 UTC. 
Sticky Slider Idea has been ruled out @ 20:03 UTC  
Many Hours Later...apparently there was a the PLL Boost that was stopping us from getting past Start_TR_CARM That Dr. Driggers found.

error with GS0 @ 20:54 UTC was Jonathan doing DC0 reboots.

Violin Damping Guadian node restart ~ 21:25 UTC
Manually setting Violin damping settings. Lost losk when applying Damping to EYmode8
The Guardian gate way needed to be restarted to solve this issue. Thank you Jonathan!
Pshyc! Violin Guardian issue is back! Turns out its a Python2.7 -> Python 3+ issue. Thanks Dave!
 
LHO's IFO Made it to Move spots before Lockloss.

error with GS0 @ 00:29 UTC  & 01:09 UTC was Jonathan doing DC0 reboots again and finding an Error.
Jonathan is doing another "Zero leg" Restart @ 1:20 UTC Alog still pending, but here is a work permit.

It is currently 02:00 UTC and the Locking team has called it for the night after losing lock at Max Power.
Lockloss was from an ASC ring up around 275 kW of recirculating power in the arms. 


LOG:                          

Start Time System Name Location Lazer_Haz Task Time End
15:57 SAFETY LASER HAZ STATUS LVEA NO LVEA is LASER SAFE \u0d26\u0d4d\u0d26\u0d3f (\u2022_\u2022) 10:51
15:57 FAC Kim & Nellie LVEA Y Technical Cleaning 16:33
17:23 JAC Jennie W, & Co JAC Lab N Working on JAC 19:23
17:39 FAC Randy X-arm N Clearing the path of tumbleweeds 19:39
17:48 Tours Cassidy & tour CTRL-Overpass N Giving a tour 18:48
17:52 LASER Saftey Travis LVEA, FCES, EY n Updating Laser status signs up around site 18:49
18:22 SQZ Karmeng & Daniel LVEA SQZt7 YES Working on HAM7 upgrades 18:57
19:26 JAC/Cheta Betsy Optics lab N Dropping off parts. 19:56
19:27 CDS Jonathan MSR N Rebooting DC0 & making CDS_Overview angry 20:57
19:31 ISC Jeff & Jennie D LVEA Y Checking on status of PSL ISCT racks. 20:11
19:42 JAC J.W. JAC Lab N Jac Work 19:48
22:15 FAC Tyler OSB Receiving N Forklifting something quickly over to OSB Recieving. 22:35
22:27 LAser Trans Sheila & Anamaria LVEA yes Transitioning the LVEA to Laser Hazard. 22:57
22:53 VAC Gerardo & Jordan LVEA N Getting parts 23:13
23:46 PEM RyanC PCAL lab N Get data from dust monitor huddle test 00:01
00:10 CDS Jonathan MSR N Working on the DNS and DC0 servers 00:50
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