Workers: Miyo-san, Simon

We did tilt-alignment measurements mainly Yesterday on the non-suspended WAB inside the cryostat with two laser-leveler.

A more detailed report about what we did and the outcome, can be found in our wiki-page (http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/subgroup/AOS/WideAngleBuffle#preview)

In short, we found small misalignments in yaw, pitch, and roll. Whereas the yaw and pitch is of the order of 0.1 degrees, the roll of the baffle is around 0.55 degrees. That roll-misalignment, however, is only for the baffle, not for the flanges, holding the baffle. They have no measurable roll misalignment.

In any case, all tilt misalignments are below the acceptable threshold which is 1 degree.