Magellan aerobrake navigation

Details Magellan aerobrake navigation Magellan aerobrake navigation

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jbis...48..111g&link_type=abstract

British Interplanetary Society, Journal (ISSN 0007-094X), vol. 48, no. 3, p. 111-122

Computer Science

Aerobraking, Aeromaneuvering, Circular Orbits, Magellan Spacecraft (Nasa), Planetary Orbits, Positioning, Space Navigation, Space Exploration, Venus (Planet), Venus Atmosphere

Scientific paper

The Magellan spacecraft has been aerobraked into a 197 x 541 km near-circular orbit around Venus from which it is conducting a high-resolution gravity mapping mission. This was the first interplanetary aerobrake maneuver and involved flying the spacecraft through the upper reaches of the Venusian atmosphere 730 times over a 70 day period. Round-trip light-time varied from 9.57 to 18.83 minutes during this period. Navigation for this dynamic phase of the Magellan mission was planned and executed in the face of budget-driven down-sizing with all spacecraft safe modes disabled and a flight-team one-third the size of comparable interplanetary missions. Successful execution of this manuever using spacecraft hardware not designed to operate in a planetary atmosphere, demonstrated a practical cost-saving technique for both large and small future interplanetary missions.

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