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Models of Mars' atmosphere (1974)Atmospheric models for support of design and mission planning of space vehicles that are to orbit the planet Mars, enter its atmosphere, or land on the surface are presented. Quantitative data for the Martian atmosphere were obtained from Earth-base observations and from spacecraft that have orbited Mars or passed within several planetary radii. These data were used in conjunction with existing theories of planetary atmospheres to predict other characteristics of the Martian atmosphere. Earth-based observations provided information on the composition, temperature, and optical properties of Mars with rather coarse spatial resolution, whereas spacecraft measurements yielded data on composition, temperature, pressure, density, and atmospheric structure with moderately good spatial resolution. The models provide the temperature, pressure, and density profiles required to perform basic aerodynamic analyses. The profiles are supplemented by computed values of viscosity, specific heat, and speed of sound.
Document ID
19750011035
Document Type
Special Publication (SP)
Date Acquired
September 3, 2013
Publication Date
December 1, 1974
Subject Category
LUNAR AND PLANETARY EXPLORATION
Report/Patent Number
NASA-SP-8010
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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