Gain Notes for Revolution 471 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. The average line position is a little high at 29.95 keV almost within 1% of the ideal value. The first couple of science windows in each revolution, just after activation of the instrument, should generally be avoided in any analysis require good energy determination. JEM-X2: No scientific data or gain history for this unit. CAO 30/8/2007