While it may be close to but not as obvious as the nose on your face, the nose still knows.
Show your proof NASA, if it exist, it should be plane for anyone to see.
You don't need a mathematically modeled formula.
Show us the image of Charon's Pluto-lit southern pole which you claim to have which proves your cold trap theory and I will go quietly into the good night, unlike Dylan Thomas.
NASA's theory is possible, I'd just like to see the proof?