Gain Notes for Revolution 452 JEM-X1: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. Like the previous revolution there are several big glitches visible on iron source 1 (black/red ), but these are well smoothed by the gain correction program and in no way affect the science data. JEM-X2: No scientific data or gain history for this unit. CAO 1/08/2006