Gain Notes for Revolution 440 JEM-X1: This is a perfectly normal and well-behaved revolution. The gain fitting has performed without problems, and all the data from this revolution should be useable. Four significant, separate glitches can be seen on source 1 (black/red), and other large glitches are seen on sources 2 (yellow/pink) and 4 (purple/orange). These glitches in no way affect the gain correction of the science data. JEM-X2: No data or gain history table for this unit. CAO 29/05/2006