adrian.helmling-cornell@LIGO.ORG - posted 20:12, Friday 13 March 2020 (55591)
A (very late) DQ Shift Report for March 2 - 9
Shifter: Adrian Helmling-Cornell
Fellow: Phil Jones
DQ Shift Summary:
- Duty factor of 80.39% for the week with range just under 120 Mpcfor most of the time
- Several hour stretchs of acoustic noise at the corner station near 21 Hz that doesn't show up in DARM
- Does not appear correlated with periods of high wind
- Listening to it makes me think of the fans on the vacuum racks or the HVAC system, but I'm not confident about either of those guesses
- Can download a sample time where this appears here
- This is time series data pulled directly from LigoDV-Web from Monday March 2 at 12:20 UTC
- It is not whitened
- Corners on the filter were 10 and 30 Hz
- Detector was in observing mode for a series of hardware injections leading to erroneous triggers