camilla.compton@LIGO.ORG - posted 09:27, Tuesday 08 October 2024 (80535)
CO2X and CO2Y left on for 1 hour after lockloss for ITM Absorption Measurement
Before this morning's lockloss until 15:20UTC, we left CO2X and CO2Y on at their nominal annular powers (1.7W into vac) so that we could measure the IFO beams absorption on the ITMs using the HWS data.