ITF found in Science mode.
At 15:07 UTC ITF in Commissioning mode; Commissioning activity concluded at 20:05 UTC. The ITF was relocked in LN3 and the beginning of the lock there were strong oscillations in Hrec_Range_BNS; Science mode was set at 20:23 UTC.
ACS
At 15:07 UTC Davide went in "Piscina" to adjust the set point of splitter.
Yesterday, while we were locked in LN3, we performed a test on the alignment of the BS ty, by moving it by +/-0.5 urad with a ramp of 25 sec, in order to have some information regarding the interplay between the alignment and the sidebands trend.
We performed 3 steps at around 15.10 (+0.5urad); 15.13 (+0.5urad) and 15.21 (-0.5 urad).
The first step was done with the loop in full bandwidth. In order to have a clearer picture of the loop behaviour during the misalignment we tested the second and the last step with the loop in drift control. The last one ended in the ITF unlock.
Fig. 1 and 2 reports the plots of the main figures of merit. We will try by looking at the data to better derive some conclusion.
