NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Assessment of the Reconstructed Aerodynamics of the Mars Science Laboratory Entry VehicleOn August 5, 2012, the Mars Science Laboratory entry vehicle successfully entered Mars atmosphere, flying a guided entry until parachute deploy. The Curiosity rover landed safely in Gale crater upon completion of the Entry Descent and Landing sequence. This paper compares the aerodynamics of the entry capsule extracted from onboard flight data, including Inertial Measurement Unit (IMU) accelerometer and rate gyro information, and heatshield surface pressure measurements. From the onboard data, static force and moment data has been extracted. This data is compared to preflight predictions. The information collected by MSL represents the most complete set of information collected during Mars entry to date. It allows the separation of aerodynamic performance from atmospheric conditions. The comparisons show the MSL aerodynamic characteristics have been identified and resolved to an accuracy better than the aerodynamic database uncertainties used in preflight simulations. A number of small anomalies have been identified and are discussed. This data will help revise aerodynamic databases for future missions and will guide computational fluid dynamics (CFD) development to improved prediction codes.
Document ID
20130010088
Document Type
Conference Paper
Authors
Schoenenberger, Mark
(NASA Langley Research Center Hampton, VA, United States)
Van Norman, John W.
(Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Dyakonov, Artem A.
(NASA Langley Research Center Hampton, VA, United States)
Karlgaard, Christopher D.
(Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Way, David W.
(NASA Langley Research Center Hampton, VA, United States)
Kutty, Prasad
(Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Date Acquired
August 27, 2013
Publication Date
February 10, 2013
Subject Category
Aerodynamics
Report/Patent Number
AAS13-306
NF1676L-15415
Meeting Information
Meeting: 23rd AAS/AIAA Space Flight Mechanics Meeting
Location: Kauai, HI
Country: United States
Start Date: February 10, 2013
End Date: February 14, 2013
Sponsors: American Inst. of Aeronautics and Astronautics, American Astronautical Society
Funding Number(s)
WBS: WBS 757285.01.07.40
Distribution Limits
Public
Copyright
Public Use Permitted.
No Preview Available