Reports until 03:50, Thursday 16 October 2025
H1 General
ibrahim.abouelfettouh@LIGO.ORG - posted 03:50, Thursday 16 October 2025 - last comment - 08:47, Monday 20 October 2025(87503)
OPS OWL Shift: DRMI Lock Issues

Got called at 3:30AM due to DRMI lock unable to lock. Flashes seem bad since the earthquake and there hasn't been an initial alignment for some reason. Set IFO to initially align then turned the manager back on.

Comments related to this report
thomas.shaffer@LIGO.ORG - 08:47, Monday 20 October 2025 (87577)

Looking further into this, it did run initial alignment before it called Ibrahim, but there were two DRMI lock losses and one regular lock loss before it called. Looks like there was a large nearby earthquake that caused the lock loss and also perhaps didn't help the initial alignment, causing Ibrahim to have to run a second one. I'll need to look further into that.

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