Compare the trajectory below to the NASA trajectory above.
http://4.bp.blogspot.com/-smrfx_q91Q...U55_Orbit2.jpg
Simulated in Celestia by Ian Musgrave
http://astroblogger.blogspot.com/201...hit-earth.html
However the total distance from earth is about as far as NASA's predicted image, as 2005YU55 lies above the earth - moon plane.
As first seen in this amped tin: http://www.abovetopsecret.com/forum/thread772740/pg1
Assuming that the lines through earth indicates its orbital direction 90 degrees from the sun., what prompted me to consider posting this as that the NASA trajectory makes less sense as 2005YU55's orbit seems to come from the sun (not around the sun).