Gain Notes for Revolution 440 JEM-X1: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. The Xe analysis confirms that the energy determination for this revolution is okay, within about 2-3% of the ideal. However, as for all revolutions, the first few science windows should be avoided in any analysis requiring very good gain determination. 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 scientific data or gain history data for this unit. CAO 4/07/2008