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19:41 Run 191 reached 10000 events but very low entries in correlation plots so we just let the Run roll over to 192 without saving/reseting monitoring histograms.
20:15 Run 192 reached max events then rolled over to 193 which we stopped after small number of events to conclude this measurements for this angle, with combined mon histograms from Run 191-193 saves as run193.root. DUT rotation -10 RBV=141.24.
20:30 We did a simple calculation from the DUT X vs MIMOSA26_2 X correlation plot from the previous angle's Run190.root histo which showed a slope of (50um/18.4um)*dX(DUT)/dx(MIMOSA)=1/sin(theta) which implied 180-theta=155.3 degrees, which is not far off from RBV=151.24 which is supposedly quite close to the actual angle in degrees. This method is also immune to small telescope tilt which cancels in the slope. The X correlation should be also mostly independent of the active Si depth knowledge. The cluster sized based estimate from tan(theta)=150um/(Cluster-size) gave 150 degrees while the cluster size measurement is somewhat less precise and needs to be sure of the 150um Si depth.
21:22 Run 195 looks like has lost the DUT vs MIMOSA correlation. Stopped run, terminated Run Control and restarted everything for Run 196.