Gain Notes for Revolution 469 JEM-X1: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. The Xe line analysis confirms this result. Though there is a lot of scatter on the Xe line position evolution the most reliable fits (widths between about 1 and 3 keV) fall within 3% of the ideal value and the average Xe position for the revolution is 29.86 keV, within 1% of the ideal value. JEM-X2: No scientific data or gain history for this unit. CAO 30/8/2007