Mechanical to Magnetic Center Offsets.  These are the distances the stages moved from the mechanical center to the magnetic center. 
  Axis        Offset                   B Field 
               (mm)                      (G)
X	          0.0065		         0.03 +/- 0.01
Y             -0.0244		              0.06 +/- 0.03
Z	          0.0711		         0.14 +/- 0.03