Daniel, Thomas, Stefan

We found that the annulus mask actually shows up despite the fringes. So we count a rough picomotor calibration of 2000cts/cm (the picomotor arrows on the periscope top mirror directly indicate beam motion on the optic.) With that, we moved the beam by 15000cts to the right (7.5cm) and 4000cts up (2cm). The attached movie shows the heating pattern. We still see some fringing, and we suspect the lower right of the beam is clipped on one of the steering mirrors. More work to be done...

We also started a script to do a central heating run over night.