In an other post I mentioned looking for the current gravity formulas being used. I have enough info to get me in trouble but I'm not a good enough hacker to get the formula. I've heard you're status is calculaed by the emenies you keep. Well if anyone else wants to take a crack at it (Nasa), from this and hundreds of other statements that show it's not a false trail I'll give you a quote.

"Shape shifting Titan

Cassini is using radio waves to make detailed measurements of the moon?s gravitational field, which astronomers hope will help identify whether Titan sports an internal ocean covered in crust of ice."

Have fun they're sore at me.

Information on the net tells you you need long tubes and all kinds of strange things, they packed everything they need into a little probe.