The air data probe is actually located on the right side just aft of where the radome meets the airframe. The Air Data probe, provides a third source of pitot pressure (Pt3), as well as static (Ps2 and Ps3). These are all used by the Flight Controls. It also has two holes to sense angle of attack, and two more to sense angle of sideslip. These, combined with the AOA Probes (conical structures on either side of the radome) the pitot tube and some flush mounted static ports on either side of the fuselage all end up being converted to electrical signals and used by the flight control computer.