thomas.shaffer@LIGO.ORG - posted 07:32, Tuesday 18 November 2025 - last comment - 10:42, Tuesday 18 November 2025(88151)
Ops Day Shift Start
TITLE: 11/18 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Calibration
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 4mph Gusts, 2mph 3min avg
Primary useism: 0.04 μm/s
Secondary useism: 0.46 μm/s
QUICK SUMMARY: Locked for 22 hours, SUS charge and PEM mag. injections running now. Maintenance today, then PEM measurements for the rest of the week, because....
I have updated the "o4" program for end of run.
O4 started: 2023-05-24 08:00:00.000000 PDT [1368975618]
O4 ended: 2025-11-18 08:00:00.000000 PST [1447516818]
now: 2025-11-18 09:36:41.000000 PST [1447522619]
O4A_START: 2023-05-24 08:00:00.000000 PDT [1368975618]
O4A_END: 2024-01-16 08:00:00.000000 PST [1389456018]
O4B_START: 2024-04-10 08:00:00.000000 PDT [1396796418]
O4B_VENT_START: 2024-07-17 11:52:00.000000 PDT [1405277538]
O4B_VENT_END: 2024-08-12 12:37:00.000000 PDT [1407526638]
O4B_END: 2025-04-01 08:00:00.000000 PDT [1427554818]
O4C_STARTGPS: 2025-06-11 08:00:00.000000 PDT [1433689218]
O4_END: 2025-11-18 08:00:00.000000 PST [1447516818]
DC0 is down now as part of the DAQ 0-leg upgrade. Its GPS EPICS channels was being used by many systems on the CDS Overview MEDM screen, resulting in a lot of purple boxes. I've switch these over to DC1 and restarted the nuc20 FOM. If you have purple boxes on your CDS Overviews, please restart them.
VACSTAT is currently in the "NOT OK" condition due to missing DC0. I'll upgrade it later when Jonathan gets identical frames on the frame writers.