I will let Atomic go into more detail but they are done just like all the major companies out there. They are cycled 3 times and than the #'s are taken that are placed on the cells using Turbo-Matchers in a climate controlled enviroment that is always the same everyday of the year.
The cells are not zapped and pushed to the moon to get their #'s, this gives you a better cell that will last longer.