ibrahim.abouelfettouh@LIGO.ORG - posted 08:25, Tuesday 28 November 2023 - last comment - 08:33, Tuesday 28 November 2023(74440)
OPS Day Shift Start
TITLE: 11/28 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 3mph Gusts, 2mph 5min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.19 μm/s
QUICK SUMMARY:
IFO was locked (but not observing due to Tues magnetic injections). Sheila unlocked IFO through planned DARM configuration change.
PSL 102 dustmon is still stuck and giving warning: "dust counts did not change please investigate". See Oli's eve (11/27) summary alog 74421 to follow the story on this.
Currently we have the Magnetic injections begin measuring the background at 15:20UTC, taking the IFO out of observing at 15:21:45UTC. They finish at 15:40UTC and the IFO goes back into observing for 5 minutes before the in-lock charge measurements start at 15:45UTC. Charge measurements now finish at 15:59:45UTC, adjusted in 74186. Ryan S and I can work together move the measurements to avoid the 5 minutes in observing.