Making the Invisible Visible: Precision RF-Emitter Geolocation from Space by the HawkEye 360 Pathfinder Mission

To be launched in Q4 2018, the HawkEye 360 (HE360) Pathfinder mission will validate key enabling technologies and operational methods necessary to provide unprecedented analysis of wireless signals for commercial and government applications using small satellites. Applications range from logistics monitoring and tracking of aircraft, ships, and ground transportation, to emergency response and other data analytics and services. The mission will nominally consist of three Pathfinder satellites, operated in formation, to demonstrate and validate an initial operational capability. Following the Pathfinder demonstration a constellation with more than 18 satellites will be