1–6 von 6 Ergebnissen
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    Low Lunar Orbit Design via Graphical Manipulation of Eccentricity Vector Evolution

    Wallace, Mark S. / Sweetser, Theodore H. / Roncoli, Ralph B. | NTRS | 2012

    Automated spacecraft conjunction assessment at Mars and the moon - a five year update

    Wilson, Roby S. / Roncoli, Ralph B. / Tarzi, Zahi B. et al. | NTRS | 2018

    Mars Observer trajectory and orbit design

    Beerer, Joseph G. / Roncoli, Ralph B. | NTRS | 1991

    Automatic Pilot For Flight-Test Maneuvers

    Duke, Eugene L. / Jones, Frank P. / Roncoli, Ralph B. | NTRS | 1992

    Mission Design Overview for Mars 2003/2005 Sample Return Mission

    Lee, Wayne J. / DAmario, Louis A. / Roncoli, Ralph B. et al. | NTRS | 2000

    Mars Orbit Rendezvous Strategy for the Mars 2003/2005 Sample Return Mission

    DAmario, Louis A. / Bollman, Willard E. / Lee, Wayne J. et al. | NTRS | 1999