Reports until 09:35, Friday 03 January 2025
H1 ISC (Lockloss)
camilla.compton@LIGO.ORG - posted 09:35, Friday 03 January 2025 (82092)
Around 15%+ of NLN locklosses are tagged ETM_GLITCH

Oli, Camilla, Sheila.

We reran all lockloss events from 22nd November (PSL swap) with the improved ETM_GLITCH code MR#143. Oli has found that even with this improved tag, some locklosses with small glitches or a glitch just before the lockloss are being missed, e.g. 1419179528, 1419158677. It's possible that sometimes we loose lock on the first glitch so don't tag it.  Jim is looking into a filter that could reduce this: 81589.

We've had 73 locklosses from Observe, of these: 11 tagged ETM_GLITCH, 10 tagged EARTHQUAKE.