JimW GregG & HughR

We unlocked HEPI and suspended, well, you know, like everything on the HEPI DSCW Springs.  While the horizontal position shifted we did put the verticals back close to where they started.  Then we set up to look at the ISI Optical Table for level.  We were level to +- 0.1mm so we did nothing further there.  The vertical position is low by 1.8mm:

Nominal - GztoLz = position in local level - observed average = position error

D0901148 - T1100187

1661.7mm-2.8 = 1658.9 - 1657.1 = 1.8mm