JEM-X2: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. The Xenon line found for this revolution lies a little low (28.8 keV) because the gain of the instrument was very high and so the high energy rejection used onboard to remove particle events from the telemetry has begun to cut into the upper end of the Xe line, hence pushing the peak down. This was a consistent problem in the revolutions leading up to the HV decrease at the beginning of revolution 62. However, the Molybdenum line is not affected by this problem and lies where it usually does at about 17.25 keV. This means that the Xenon line is not a good indicator of the overall gain calibration accuracy for JEM-X2 during revolutions 45-61.
This revolution is notable for the immense glitch on source 3 (blue/green) towards the end of this revolution. Despite this glitch the gain smoothing performs well, though is perhaps a little low towards the end of the revolution. A complete description of the glitch and what causes glitches in general, can be found here.
CAO 24/4/2006