(Jax, Volker, Sheila, Chris)

After reconnecting the PSL periscope PZT, we have recovered the IMC alignment.

The initial coarse alignment was done by opening the top of the PSL shutter box, so that a beam reflected off the input viewport could be compared to Volker's reference marks on the PSL enclosure wall.  We actually had to do this step twice.  The first time, after we started working with the piezo, we found out that its X and Y axes were almost 45 degrees away from horizontal and vertical.  So Volker went into the PSL and rotated the piezo/mirror assembly in its mount.  We also took the opportunity to relieve some PZT bias onto the mount.

Then the IMC was realigned and locked.  We used both some PZT bias and some movement of the MC mirrors to accomplish this.  So the input pointing is not identical to what we had before connecting the PZT.  We plan to review the input pointing later on, but for now we are ready to continue with setting up the WFS.