Don,

There are a number os solar flux variation cycles BESIDES the 11 year sunspot cycle, as has been brought out and ignored in several earlier threads. If YOU care to state that solar flux is otherwise a constant, YOU have NOT been keeping up with the last 50 years or so of solar astronomy. Atmospheric models are a significant part or precision orbit determination for low Earth orbiting satellites, and are even used for s/c such as LAGEOS.

But since you know so much better than those of us who make our livings dealing with such, I suppose I should start insisting my knowledge of whatever field YOU claim to know is superior, because I say so.