Who said this is a game for the big boys, here is a 27 frame animation of Io going behind Jupiter. Fair amount of processing roughly about 6 hours worth. Made it worth while though. I am pleased with the result even if I did cut it short as my arm was getting tired from the tracking.
Looks like you might have some good avi's there for individual (still) images. The seeing really comes and goes in that animation. Some frames are really clear