Gain Notes for Revolution 625 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 good, within 2% of the ideal. However, as for all revolutions, the first few science windows should be avoided in any analysis requiring very good gain determination. JEM-X2: No scientific data or gain history data for this unit. CAO 4/2/2008