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  • 1
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    Unknown
    Multiple main-belt asteroid mission options for a Mariner Mark II spacecraft (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper presents the trajectory options available for a MMII spacecraft mission to asteroids and introduces systematic methods of uncovering attractive mission opportunities. The analysis presented considers multiple synchronous gravity assists of Mars and introduces a terminal resonant or phasing orbit; a concept useful for both increasing the number of asteroid rendezvous targets attainable during a launch opportunity, and also in increasing the number of potential asteroid flybys. Systematic examinations of the requirements for superior asteroidal alignments are made and a comprehensive set of asteroid rendezvous opportunities for the 1998 to 2010 period are presented. Examples of candidate missions involving one or more rendezvous and several flybys are also presented.
    Keywords: ASTRODYNAMICS
    Type: AAS PAPER 89-434 , AAS/AIAA Astrodynamics Conference 1989; Aug 07, 1989 - Aug 10, 1989; Stowe, VT; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Aerobraking strategies for the sample of comet coma earth return mission (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The results of a study to the validate the applicability of the aerobraking concept to the SOCCER (sample of comet coma earth return) mission using a six-DOF computer simulation of the aerobraking process are presented. The SOCCER spacecraft and the aerobraking scenario and power supply problem are briefly described. Results are presented for the spin effect, payload exposure problem, and sun angle effect.
    Keywords: ASTRODYNAMICS
    Type: International Symposium on Space Technology and Science; May 20, 1990 - May 25, 1990; Tokyo; Japan
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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