TITLE: 03/13 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 134Mpc
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 24mph Gusts, 18mph 3min avg
Primary useism: 0.03 μm/s
Secondary useism: 0.28 μm/s
QUICK SUMMARY: Locked for 1.5 hours. Planned calibration and commissioning today. Elevated winds already present, some gusts above 40mph. The PSL 101 dust monitor has been in alarm.
Our range has been diving down to 130 or so then recovering. It doesn't seem to be the PIs or the end station noise that we were looking at recently. Rumors in the control room are that it was the squeezer, stay tuned for another alog.
Sheila, TJ, Camilla. In 83330 we showed that the SQZ servo with edited ADF PLL phase 83270 was working well, but it's been running away this morning, plot attached. We're not sure yet what changed to make it become unstable but this is similar to why we turned it off in Feb.
Tagging DetChar as the times when the SQZ phase and IFO range jump a lot (2025/03/13 14:49 UTC and 15:10UTC) may have glitches.