Entry, descent, and landing scenario for the mars exploration rover mission
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In January 2004, the Mars Exploration Rover (MER) mission successfully landed two landers on the surface of Mars. Both landers delivered a rover to the surface using an entry, descent, and landing (EDL) scenario based on Mars Pathfinder heritage. However, the entry conditions and environments were different from that of Mars Pathfinder. Unique challenges were present due to the entry differences of a heavier entry mass, less dense atmosphere, and higher surface landing site altitude. These differences resulted in a higher terminal velocity and less time for performing all the EDL events as compared to Mars Pathfinder. As a result of these differences, modifications were made to the MER EDL systems to safely deliver the rovers to the surface of Mars. An overview of the design modifications made to the MER EDL system compared to MPF is described.
KeywordsRadar Altimeter Mars Exploration Rover Above Ground Level Drag Area Entry Characteristic
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- RONCOLI, R. B. and LUDWINSKI, J. M. “Mission Design Overview for the Mars Exploration Rover Mission,” AIAA Paper 2002-4823, August 2002.Google Scholar
- DESAI, P. N. and KNOCKE, P. C. “Mars Exploration Rovers Entry, Descent, and Landing Trajectory Analysis,” The Journal of the Astronautical Sciences, Vol. 55, No. 3, July-September 2007, pp. 311–323.Google Scholar
- FALLON, E. J. “System Design Overview of the Mars Pathfinder Parachute Decelerator Subsystem,” AIAA Paper 97-1511, 1997.Google Scholar
- LAU, R. A. and HUSSON, J. C. “The Viking Mars Lander Decelerator System,” AIAA Paper 70–1162, 1970.Google Scholar