Gain Notes for Revolution 100 JEM-X1: No science or calibration data for this unit. JEM-X2: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. First few points on each curve belong to the partial switch-on for which HV is set 3 steps below its nominal value. The Xenon line analysis shows that the gain fitting works well for all science windows except for the very first SCWs in the revolution where the spatial gain variation of the detector is evolving rapidly. It is advised not to read too much into small energy changes in these first science windows. CAO 18/12/2006