Yesterday we moved the ISCHT4 (Hartmann sensor) table back in position next to HAM4. Because of the on-going pumping on the vacuum system, the viewport covers remained in place and the light pipes remained disconnected. We spent several hours getting all the cables carefully hooked up again to the table.

We also noticed that the persicopes are severely out of position relative to the holes in enclosure (both shifted about 2" to the right). It's not immediately clear why this is the case but since the enclosure and periscopes are all bolted to the table, it is not a result of the table move. It may be that the table has been out of position for a long time and the periscopes were moved to capture the green beams that exit the vacuum system. Once we get access to the viewports, this should become clearer.

We also installed the nominal HWSY AIRLENS, PLCX-50.8-515.1-UV (per Table 2, T1000179-v20), replacing the lens installed to compensate for the incorrect vacuum lens.