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Mars 2020 Entry, Descent and Landing Instrumentation 2 (MEDLI2)The Mars Entry Descent and Landing Instrumentation 2 (MEDLI2) sensor suite will measure aerodynamic, aerothermodynamic, and TPS performance during the atmospheric entry, descent, and landing phases of the Mars 2020 mission. The key objectives are to reduce design margin and prediction uncertainties for the aerothermal environments and aerodynamic database. For MEDLI2, the sensors are installed on both the heatshield and backshell, and include 7 pressure transducers, 17 thermal plugs, and 3 heat flux sensors (including a radiometer). These sensors will expand the set of measurements collected by the highly successful MEDLI suite, collecting supersonic pressure measurements on the forebody, a pressure measurement on the aftbody, direct heat flux measurements on the aftbody, a radiative heating measurement on the aftbody, and multiple near-surface thermal measurements on the thermal protection system (TPS) materials on both the forebody and aftbody. To meet the science objectives, supersonic pressure transducers and heat flux sensors are currently being developed and their qualification and calibration plans are presented. Finally, the reconstruction targets for data accuracy are presented, along with the planned methodologies for achieving the targets.
Document ID
20160008391
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Hwang, Helen H. (NASA Ames Research Center Moffett Field, CA United States)
Bose, Deepak (NASA Ames Research Center Moffett Field, CA United States)
White, Todd R. (NASA Ames Research Center Moffett Field, CA United States)
Wright, Henry S. (NASA Langley Research Center Hampton, VA, United States)
Schoenenberger, Mark (NASA Langley Research Center Hampton, VA, United States)
Kuhl, Christopher A. (NASA Langley Research Center Hampton, VA, United States)
Trombetta, Dominic (NASA Langley Research Center Hampton, VA, United States)
Santos, Jose A. (Sierra Lobo, Inc. Moffett Field, CA, United States)
Oishi, Tomomi (Jacobs Technology, Inc. Moffett Field, CA, United States)
Karlgaard, Christopher D. (Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Mahzari, Milad (Analytical Mechanics Associates, Inc. Moffett Field, CA, United States)
Pennington, Steven P. (Science Systems and Applications, Inc. Hampton, VA, United States)
Date Acquired
July 1, 2016
Publication Date
June 13, 2016
Subject Category
Instrumentation And Photography
Report/Patent Number
ARC-E-DAA-TN32144
Meeting Information
Meeting: AIAA AVIATION 2016
Location: Washington, DC
Country: United States
Start Date: June 13, 2016
End Date: June 17, 2016
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NNA15BB15C
CONTRACT_GRANT: NNL12AA09C
CONTRACT_GRANT: NNA16BD26C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Aerodynamics
Aerothermodynamics
Thermal Protection System

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