corey.gray@LIGO.ORG - posted 01:20, Friday 23 June 2023 - last comment - 10:30, Friday 23 June 2023(70752)
H1's Longest Lock Ends At 26hrs 51min
H1's Longest Lock Duration: 26hrs 51min
There was no obvious environmental reason for a lockloss at 0751utc.
Green arms were a bit off (as well as the BS for PRMI). First locking attempted failed while ASC was engaging for DRMI.
1371541886 I can see no LSC or ASC instabilities before lockloss. The lock was not "FAST" (>30ms) as classified in G2201762 and lockloss was upstream of IMC as the IMC stayed locked for 0.3s after light fell off AS_A, see attached.