Perturbed motion of a ballistic spacecraft during entry into the Martian atmosphere

Details Perturbed motion of a ballistic spacecraft during entry into the Martian atmosphere Perturbed motion of a ballistic spacecraft during entry into the Martian atmosphere

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977kosis..15..164k&link_type=abstract

Kosmicheskie Issledovaniia, vol. 15, Mar.-Apr. 1977, p. 164-178. In Russian.

Astronomy and Astrophysics

Astronomy

Atmospheric Entry, Mars Atmosphere, Spacecraft Stability, Aerodynamic Drag, Astrodynamics, Ballistic Trajectories, Surface Distortion

Scientific paper

Effects of possible distortions of the shape of a spacecraft surface on torque are evaluated. Distortions considered include helical distortion, bending of the rotational axis without change in the transverse profile, and warping of the afterbody profile. The dynamics of a spacecraft descending into the Martian atmosphere is analyzed, with attention given to longitudinal angular velocity, trajectories, and angles of attack. It is shown that deceleration in the highly rarefied Martian atmosphere requires the construction of a frontal shield with large aerodynamic drag and that stability of uncontrolled motion about the center of mass is important for such a configuration.

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