Upon reaching the site, I found the ITF in LOCKED_ARMS_BEAT_DRMI_1F, with Gouaty investigating on the B1p_QD1 issue. After the problem was solved (see report #63776) we attempted to relock, but due to the strong weather condition, it was not possible to reach CARM_NULL_1F stably. The wind intensity slowly decreased, but the ITF kept systematically unlocking at LOCKING_CARM_NULL_3F or LOCKING_CARM_NULL_1F. At 19:00 UTC I contacted the ISC Oncall (Mantovani) but, at the following attempt and without adjustments, we were able to reach LOW_NOISE_3 at 19:55 UTC. I tried to reach LOW_NOISE_3_SQZ, but SQZ_MAIN was stuck in SQZ_LOCKED_NO_FC.
At 20:42 I set the ITF Mode in CALIBRATION and started the planned Calibrations.
20:43 UTC - Measurement of actuators response for NE,WE actuators and NI,WI,BS marionnettes, interrupted at 21:05 UTC due to an unlock;
21:06 UTC - Measurement of the TF between CAL and Sc channels, completed;
21:15 UTC - Measurement of actuators response for PR and BS mirrors;
Calibrations in progress.
Guard Tour
18:06 UTC - 18:50 UTC
20:01 UTC - 20:31 UTC
Oncall events
ISC
(28-03-2024 19:00 - 28-03-2024 19:50) From remote
Status: Ended
Description: During the shift, the ITF kept unlocking systematically at LOCKING_CARM_NULL_3F or LOCKING_CARM_NULL_1F.
Actions undertaken: I contacted the ISC Oncall (Mantovani), the ITF locked without further input at the following attempt.