SLAC Magnetic Measurements Date: 08-08-2017 Time: 11:35:18 Project: LCLS-II Device Type: Undulator Data Type: Serial Number: SXR_001 DATASET Number: 1 Tuning Stage: Tuning Run Number: 50 Measurement Type: Long Coil Scans Operator: YL Comment: shim signatures; two V-slugs and two H-slugs TB