Gain Notes for Revolution 505
	
JEM-X1: A quite normal revolution with fine gain fitting. All the data from 
this revolution should be useable. The Xe line analysis confirms the 
good gain calibration for this revolution with all except the very first Science
Windows having a Xe line position with about 2% of the ideal value. Generally
the energy calibration is a little low. As always, however, it is suggested that
users avoid the first few science windows in each revolution since this is
where the instrument warms up and gain variations across the plate settle down.
Since the temperature variation of the gain has tripled since the beginning of the
mission, future offline calibrations, including temperature dependency, could
possibly benefit this revolution when they become available in the coming
year.

JEM-X2: No scientific data or gain history for this unit.

CAO 4/1/2008