Reports until 16:44, Thursday 13 March 2025
H1 CDS
david.barker@LIGO.ORG - posted 16:44, Thursday 13 March 2025 (83366)
VACSTAT LVEA trip levels lowered to detect this morning's event

Janos, Gerardo, Dave:

The slope trip level for some LVEA gauges was reduced from 1.0e-10Torr to 3.0e-12Torr such that if an event similar to this morning were to happen again VACSTAT would alarm on it.

Trending the SLOPE channels over the past week showed that BSC3's gauge (PT132) cannot be lowered without causing many false positive alarms. Attachments show trend and which gauges now have the lower trip level.

Images attached to this report