Reports until 15:03, Tuesday 23 December 2025
LHO General
ryan.short@LIGO.ORG - posted 15:03, Tuesday 23 December 2025 - last comment - 16:57, Tuesday 23 December 2025(88653)
Ops Last Day Shift of 2025 Summary

TITLE: 12/23 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY: A fittingly quiet day today. HAM7 alignment work wrapped up this morning, so I transitioned the LVEA to Upgrade Phase Laser SAFE for the break. The stair move from EY has been postponed to the new year due to high tumbleweed interference. Control room workstations (with the exception of operator and VAC stations) and wall FOMs (with the exception of CDS, VAC, and temperature monitors) have all been shut down.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
15:57 SAF LASER SAFE LVEA NO LVEA is Upgrade Phase Laser SAFE Ongoing
16:17 FAC Kim, Nellie LVEA - Technical cleaning 16:53
17:19 SQZ Sheila, Kar Meng LVEA YES HAM7 beam alignment 19:57
18:37 SAF Travis EX N Updating laser signs 19:00
19:57 SAF RyanS LVEA YES Transition to Laser SAFE 20:13
21:07 VAC Travis LVEA N VAC walkthrough 21:44
22:07 TCS RyanS MER N Checking TCS chillers 22:20
Comments related to this report
david.barker@LIGO.ORG - 16:57, Tuesday 23 December 2025 (88654)

EDC had lost connection to 156 nuc cds_load_mon channels after the shutdown. I am running a temporary IOC to serve these channels and "green up" the EDC.

nuc_dummy_ioc.py is being ran as david.barker in a tmux session called nuc_dummy_ioc on opslogin0.