Today I restored the optical lever of the telescope suspended mirror in PR chamber. Error signals look fine even if, since the chamber is open, they are a bit noisy than usual due to the light.

In order to close the loops I had to increase a bit the gain of the yaw loop and change both the loop signs. I have also tweaked the driving matrix to reduce the exicitation of yaw when injecting noise on pitch. In the previous configuration I have added a rotation of the sensing of 0.04 rad (as reported here), now I have removed it since it seems to be not needed anymore.

I will upload soon spectra and transfer functions.