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Record Details

Record 6 of 26101
Solar electric propulsion combined with earth gravity assist - A new potential for planetary exploration
Author and Affiliation:
Atkins, K. L.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Sauer, C. G.(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, Calif., United States)
Flandro, G. A.(Utah, University, Salt Lake City, Utah, United States)
Abstract: The need to shorten mission time (travel time to target planet) in missions to the outer planets prompts a search for alternatives to one-way minimum-energy transfers while continuing to minimize on-power thrusts. Gravity assists via swing-bys of inner planets are examined, with emphasis on a projected Venus-earth gravity assist (VEGA) and a combined solar electric propulsion and earth gravity assist (SEEGA). Gravity assists are also examined as essential for missions with sample returns back to earth. Possible use of such techniques in the Shuttle Interim Upper Stage (IUS) program is considered. Various SEEGA and VEGA trajectories are discussed and charted, and time lost in the launch orbit to earth re-encounter time is weighed against time gained by faster speed toward the mission destination.
Publication Date: Aug 01, 1976
Document ID:
19760060148
(Acquired Dec 01, 1995)
Accession Number: 76A43114
Subject Category: ASTRONAUTICS (GENERAL)
Report/Patent Number: AIAA PAPER 76-807
Document Type: Conference Paper
Publisher Information: United States
Meeting Information: Astrodynamics Conference; Aug. 18-20, 1976; San Diego, CA
Meeting Sponsor: American Institute of Aeronautics and Astronautics and American Astronautical Society
Contract/Grant/Task Num: NAS7-100
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Utah Univ.; Salt Lake City, UT, United States
Description: 10p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: SOLAR ELECTRIC PROPULSION; SPACE EXPLORATION; SPACECRAFT PROPULSION; SWINGBY TECHNIQUE; ENERGY REQUIREMENTS; MARS PROBES; OUTER PLANETS EXPLORERS; PLANETARY GRAVITATION; SOLAR SYSTEM
Imprint And Other Notes: American Institute of Aeronautics and Astronautics and American Astronautical Society, Astrodynamics Conference, San Diego, Calif., Aug. 18-20, 1976, AIAA 10 p.
Availability Source: Other Sources
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