Feasibility Assessment of Nonstop Mars Sample Return System Using Aerocapture Technologies

概要

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Preliminary feasibility assessment of a Martian nonstop sample return system has been conducted as a part of Mars Exploration with Landers and Orbiters (MELOS) which is currently under investigation in Japan Aerospace Exploration Agency. In the mission scenario, an atmospheric entry vehicle of aero-maneuver ability is flown into the Martian atmosphere, collects the Martian dust particles and atmospheric gases during the hypersonic atmospheric flight, exits the Martian atmosphere, and is inserted into a parking orbit from which a return system departs for the earth. In order to accomplish controlled flight and successful orbit insertion, aerocapture technologies are introduced into the vehicle guidance and control system. A conceptual design is presented as a result of the preliminary system analysis.