matthew.ball@LIGO.ORG - posted 09:35, Monday 20 November 2023 (74303)
Data Quality Shift Report 2023-11-13 to 2023-11-19
Summary of the report:
- H1 was in observing for 72.9% of the week.
- Squeezer drift issues still present from last week. Commissioners actively investigating. A temporary line at 1.3 kHz was added over the weekend as part of tracking the drift - alog 74256
- Sprinkler blowout on Wednesday (Nov. 15) at about 16:10 UTC (alog 74218). End time is not known, but the work was estimated to last about 30 minutes.
- A few locklosses through the week due to earthquakes.
- Heavy winds on Sunday caused issues locking and reduced sensitivity for part of the day.
- Fscan plots appeared every day, and the number of lines was always within one standard deviation of the mean.