In parallel other activities were carried out:
- ISYS activities; still in progress
- TCS CO2 lasers switching ON; completed at 20:00 UTC.
- work at NE building by Polish group; completed at 18:30 UTC.
At around 20:00 UTC I was contacted by Romain because he wanted to perform some activities with the ITF locked in PR_ITF; unfortunately I had no instructions to lock the ITF in that state without B1p and I could reach only LOCKED_RECOMBINED. We decided to postpone the activity.
I left Paolo still working on the ISYS.
SAT
We mirror coils left unplugged
SBE
At 16:48 UTC I closed the SNEB LC; they had been left open by Alessandro.
ISYS
yesterday night (around 4:00 UTC) we had a jump of 1 degree in the temperatures of PSL_AMP_DIODE_4; see attached pictures.
I leave the IMC AA closed in full bandwidth, after the implementation of a sensing matrix which looks fine, and more important after a change of the working point, which rely on the zero of the FF and NF quadrants. The eventual improvement of the system is entirely due to the work done by optics group for the quality of the signals.