Gain Notes for Revolution 593 JEM-X1: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. The Xe analysis shows near perfect energy determination, with only the very first SCWs showing more than 1% difference from the ideal. It is generally a good idea to exclude the first few science windows after activation of the instrument. JEM-X2: No scientific data or gain history data for this unit. CAO 31/8/2007