This morning, all corner station Oplevs were aligned. All suspensions utilizing OpLevs were all aligned and witness sensors trended and returned back to a good, locked, position.

There was a bit of an issue with the BS. It seems that after alignment is executed there's some discharge from the positioner upon disconnecting that causes a predtty moderate 'kick' in pitch which causes the centroid to NOT return to the previously zeroed position, sometimes by as much a 10µrad.  Jason and I tried also tried with AC power connected and disconnected. This did not seem to have any affect either way. I also tried just leaving everything in a good centered place and leaving everything connected. After a while there was some drift in pitch of about 2-3 µrad.  It's when the PIT/YAW or hand controller module is disconnected is when this effect occurs.

The positioner has been taken into the EE lab for investigation into some dicharge that may be occuring. This work permit will remain open until the End stations can be re-aligned