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User name Yi Qiang
Log entry time 08:53:38 on November 05, 2008
Entry number 246845
This entry is a followup to: 246817
keyword=Orientation of Spot++ plot and BeO photo
The axises of spot++ are defined in Hall system, which means the
rb.****.x is to the left of the beam and rb.****.y is pointing vertically
up. While on BeO window, the left is left, up is up. Therefore, to
compare them, one of the plot needs to be rotated first.
A copy of this log entry has been emailed to: jinhuang@jlab.org