Gain Notes for Revolution 1976

Due to a cosmic ray event, JEM-X1 was not operational during this revolution.
This is the first revolution where JEM-X2 was calibrated using the gain
history table for this unit for the previous revolution as a starting point.
This was because JEM-X1 calibration data was not available. The final results
are just as good from an energy determination perspective as JEM-X2 data from
all other revolutions.	

JEM-X2 rating: Excellent (Xe line positions within 2% of ideal)

As usual however, it is recommended that users avoid the first few science 
windows for energy-sensitive applications (automatically removed by OSA 10.0).

CAO 19/07/2018