Jenne, Chiara.

Today was very windy, so the locking team was not able to lock the interferometer, but it became much easier once the CPS DIFF was on.  In this case the HAM2 and HAM3 were locked together and also BS, ITMX and ITMY were locked together.

The plots in attachment show measurements in on (pink) and off (green) conditions of CPS DIFF; for HAM chambers plots, off traces are in green and red, on traces are in pink and blue. We got some data (MICH, PRCL,  SRCL, DARM) when the system was on and the interferometer was at full resonance, but  we can't get a reference of the system in off mode since we can't lock without it.

These results are similar to previous ones in earlier posts, we are showing that this can be helpful to reach the lock.