ITF found in relocking State, LOW_NOISE_3_SQZ reached at the first attempt. Science Mode started at 13:32 UTC.
At 13:47 UTC UTC I set to Adjusting mode to switch to Earthquake configuration ( Earthquake M 6.4 - 33km WSW of Tsuruoka, Japan, 13:22 UTC, see attached image #1 ), but even with this configuration the ITF unlocked at 14:09 UTC.
ITF back at LOW_NOISE_3_SQZ at 15:42 UTC, but there was an excess of noise in the sensitivity curve. Triggered by a red flag I contacted the SQZ Oncall ( M. Vardaro ) that verified that the Squeezing was working correctly. A. Allocca tried to improve the working point of the ITF ( from around 16:00 UTC to 16:45 UTC, activity agreed with the Run Coordinator, see entry logbook #46147 ), back in Science Mode at 16:49 UTC.
The ITF unlocked twice after the adjustment ( 17:32 UTC and 20:03 UTC, see attached plot #2 and #3 ), in both cases there were no issue to recover the lock.
Science Mode from 20:34 UTC, ITF left locked.
Troubleshooting mode set from 15:53 UTC to 16:49 UTC due to the excess of noise in the sensitivity curve. The flag brms_LSC_DARM_20_2_2600_2800, under SQZ_Inj, reported that the Squeezer was injecting noise in the ITF. The SQZ expert verified that the issue was not related to the Squeezing. Troubleshooting period extended to allow A. Allocca to improve the Working point of the ITF. SQZ_Inj flag still red.
The flag delta_ENV_CEB__DUST_0P3UM_3600 became red since 11:21 UTC, reporting that the CEB particle counter is not working correctly. I tried to reach via web the related counter, but the connection was refused.
At around 16:30 UTC the DMS reported that the process CaliMoni wasn't working anymore. Checking on the VPM I found out that TFMoni stopped responding ( process red on VPM ). I tried to restart it but the process was still alive on its host (olserver52). I manually stopped it I was able to start it again at 16:33 UTC.
17:32 UTC - 18:04 UTC
19:35 UTC - 20:02 UTC