Upon arrival I found ITF  locked in SSFS_State since yesterdey evening.
From 7:30 to 9:30 UTC ITF Majorana worked at NE on optic lever with ITF not locked.
Then, at 10:00 UTC, ITF has been relocked in Low_Noise_3 with horizon ~21 Mpc.
The lock needed a fine realignment of NE and NI and a change of DARM gain carried out by J. Casanueva.

The planned activity on towers shaking, carried out by I. Fiori, went on without major problems. Activty started at 10:30 UTC and concluded at 15:00 UTC.

ACS
According with I. Fiori, at 14:22 UTC, I set PN on ACS Air Flux in Detection Lab in order to allow the activity in Det Lab by Fiori and Boschi. PR restored at 14:56 UTC.