http://www.avphoto.com/Boeing%20Field%20Action%20-%20June%206th%202005/slides/iMG_2312.html
It's a modified Boeing 767 with a F/A-22 radar in its nose and a canard that simulates the positioning of sensors on an F/A-22.
http://virtualglobetrotting.com/map_edit/?mid=15965