Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977prag.iafcr....o&link_type=abstract
International Astronautical Federation, International Astronautical Congress, 28th, Prague, Czechoslovakia, Sept. 25-Oct. 1, 197
Astronomy and Astrophysics
Astronomy
Atmospheric Entry, Earth-Mars Trajectories, Insertion, Mars Atmosphere, Orbital Maneuvers, Spacecraft Control, Airborne/Spaceborne Computers, Algorithms, Atmospheric Density, Control Simulation, Lateral Control, Lift Drag Ratio, Spacecraft Stability, Trajectory Control
Scientific paper
Entry control methods have been applied to the Mars Orbiter insertion mission using atmospheric deceleration. Flexibility of the motion control algorithm for trajectory control, with adaptation to real flight conditions, alleviates problems with regard to low atmospheric density, variations in atmosphere parameters, and wide dispersions of initial entry conditions. The insertion maneuver sequence consists of deceleration within the Martian atmosphere (with controllable aerodynamic deceleration permitting damping the considerable part of spacecraft energy with low fuel consumption), and additional velocity increment by thrusting after skip-out of the atmosphere. Digital computer simulation has been used to test the derived algorithm, and the results have proved high effectiveness of the proposed control methods.
Golubev Iu. F.
Okhotsimskii D. E.
Sikharulidze Iu. G.
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