On: Flyby anomaly

[musgravepeter]

The mass of the "test particle" Cassini will cancel out of orbit equation but will matter for drag, radiation pressure etc. If it's outside the error bars they gave for mass, then this is conceivable.

OTOH this is a pretty conservative bunch.

It may "just" be something in the details (much like the Pioneer anomoly: http://www.planetary.org/blogs/bruce-betts/3459.html?referre... which was solved after 20 years of digging and LOTS of speculative ideas that did not work out).