SLAC Magnetic Measurements Date: 05-10-2007 Time: 09:19:09 Project: LCLS Device Type: Undulator Data Type: Serial Number: L143-112000-19 DATASET Number: 1 Tuning Stage: Fine Tuning Run Number: 15 Measurement Type: Z Scans Operator: YL Comment: find y at min K: after long coil measurements