Ummm, is it just me that doesn't see anything unusual about this. It just kinda makes sense to me that the signal to noise ratio would be higher at night (as it is in your graph) when there is less solar noise due to the sun being set, and lower during the day when there is more noise. Perhaps there is something in the graph you would like to point out as unusual (or maybe post one from another satellite so we can see what a satellite looks like when it's not having problems)? The only strange thing I do see is the significant 2 hour long drop in the middle of the night. no clue what that is. Only thing I can think of is the sat is not getting as much light from the sun due to partial elipse by the earth, so slightly less power from sat as it's running off batteries (I'm reachin for explanations here, I really have no clue). Thanks for the great graph, and for anything you can teach me about this. Very interesting indeed.