Gain Notes for Revolution 165 JEM-X2: A quite normal revolution with okay gain fitting. All the data from this revolution should be useable. First 3 points on each curve are the partial switch on of the instrument with HV set 3 steps below its nominal value. Fair amount of glitch activity on all sources, but this shouldn't affect the science data at all. The fit to the gain could be better on all 4 sources towards the beginning of the revolution where there is an unusual dip in the gain, probably due to cooling of the spacecraft, possibly caused by slewing away from the sun. We will endeavour to provide a new smoothed gain history table to ISDC to cover this revolution. CAO 10/01/2006