This paper introduces a new set of orbits, the “Repeated Shadow Track Orbits.” In these orbits, the shadow of a spacecraft on the Earth visits the same locations periodically every desired number of days. The 𝐽2 perturbation is utilized to synchronize the spacecraft shadow motion with both the Earth rotational motion and the Earth-Sun vector rotation. Motivation for the design of new shadow track orbits comes from the need to save energy. The general mathematical model to design a Repeated Shadow Track Orbit (RSTO) is presented within this paper. RSTOs' conditions are formulated and numerically solved. Results show the feasibility of RSTOs. An optimization process is also developed to maximize the shadow duration over a given site. A Genetic Algorithm (GA) technique is utilized for optimization.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Repeated Shadow Track Orbits for Space-SunSetter Missions


    Beteiligte:
    Ahmed Gad (Autor:in) / Ossama Abdelkhalik (Autor:in)


    Erscheinungsdatum :

    2009




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Repeated Shadow Track Orbits (AAS 09-434)

    Gad, A. / Abdelkhalik, O. / American Astronautical Society et al. | British Library Conference Proceedings | 2010


    Satellites - orbits and missions

    Capderou, Michel | SLUB | 2005


    Optimization of space orbits design for Earth orbiting missions

    Abdelkhalik, Ossama | Online Contents | 2011



    Space Launch System and Missions to Near Rectilinear Halo Orbits

    Statham, T. L. / Stein, W. B. / Craig, A. S. | NTRS | 2019