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Overview of the Phoenix Entry, Descent and Landing System ArchitectureNASA s Phoenix Mars Lander began its journey to Mars from Cape Canaveral, Florida in August 2007, but its journey to the launch pad began many years earlier in 1997 as NASA s Mars Surveyor Program 2001 Lander. In the intervening years, the entry, descent and landing (EDL) system architecture went through a series of changes, resulting in the system flown to the surface of Mars on May 25th, 2008. Some changes, such as entry velocity and landing site elevation, were the result of differences in mission design. Other changes, including the removal of hypersonic guidance, the reformulation of the parachute deployment algorithm, and the addition of the backshell avoidance maneuver, were driven by constant efforts to augment system robustness. An overview of the Phoenix EDL system architecture is presented along with rationales driving these architectural changes.
Document ID
Document Type
Conference Paper
Grover, Myron R., III (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cichy, Benjamin D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Desai, Prasun N. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
August 18, 2008
Subject Category
Aircraft Design, Testing and Performance
Report/Patent Number
AIAA Paper No 2008-7218
Meeting Information
AIAA/AAS Astrodynamics Specialist Conference(Honolulu, HI)
Funding Number(s)
WBS: WBS 599489.
Distribution Limits
Work of the US Gov. Public Use Permitted.

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