Gain Notes for Revolution 27 JEM-X2: A quite normal revolution with fine gain fitting. All the data from this revolution should be useable. First few points on each curve belong to the partial switch-on for which HV is set 3 steps below its nominal value. The break towards the beginning of the revolution is well-fitted so this in no way affects the science data. The low noise level allows a number of small glitches to be seen very clearly. CAO 14/03/2006