Analysis of special class of free-flight circumlunar trajectories presented uses simplified model of motion in earth-moon system, based on sphere-of-action concept; emphasis is on launch from circular parking orbit, very close approach to moon, and re-entry into earth's atmosphere at shallow angle; some results of special computer program are presented in parametric form and for specific time period; comparison with machine integrated circumlunar trajectories is presented, and methods by which circumlunar trajectories may be generated are indicated.


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    Title :

    Analysis of free return circumlunar trajectories


    Additional title:

    Progress Astronautics Aeronautics -- Celestial Mechanics Astrodynamics


    Contributors:
    Penzo, P.A. (author)


    Publication date :

    1964


    Size :

    35 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :