Abstract: Systems and methods for autonomous aircraft navigation are disclosed. Embodiments relate to autonomously navigating an aircraft to a payload by locating a payload target attached to the payload. In some embodiments, the payload target is comprised of a plurality of concentric shapes of retroreflective material. These retroreflective shapes may be quickly identified in images to locate the payload. The retroreflective shapes may be illuminated by a light source on the aircraft so that the payload and the payload target do not requires a power source of their own. Some embodiments use band-filtered light and image acquisition techniques to facilitate locating of the payload target.