Undulator #3 Magnet Magnet# Calibration Measurement TB-MA (TB to magnetic axis) name x y x y x y UPM PM2 0.091328 0.091379 0.031949 0.000578 0.091217 0.091439 DPM PM3 0.091304 0.091388 0.031887 0.00052 0.091131 0.09139 URM PM4 0.091511 0.091469 0.079492 0.000341 0.138943 0.091292 DRM PM1 0.091438 0.091416 0.079703 0.000384 0.139081 0.091282 UPM-Upstream PM DPM-Downstream PM URM-Upstream Reference Magnet DRM-Downstream Reference magnet Hall Probe x y 0.03206 0.000518 Differences in coordinates ?X(mm) ?Y(mm) UPM-DPM 0.086 0.049 UPM-URM -47.726 0.147 DPM-DRM -47.95 0.108 URM-DRM -0.138 0.01 Optical measurements (UPM-DPM) X Y ?X(mm) ?Y(mm) UPM -47.68 0.13 0.15 0 DPM -47.83 0.13 Probe ? -111.81 Keyence Probe -11.352 Block 11.182 Probe X Y (to URM) -138.943 -112.003