There are 33 U-2s in U.S. Air Force service, and the modular nature of its sensor and communications pods attached to the nose, under the wings, and above the fuselage means there is a lot of variance in their appearance. This particular U-2S has the teardrop-shaped Senior Span/Senior Spur satellite datalink pod mounted behind the cockpit. The blunted nose with protrusion on top is the ASARS-2 advanced synthetic aperture radar system.