The Cassini spacecraft encounters the massive Titan about once every month. These encounters are essential to the mission as Titan is the only satellite of Saturn that can provide enough gravity assist to shape the orbit tour and allow outstanding science for many years. From a navigation point of view, these encounters provide many challenges, in particular those that fly close enough to the surface for the atmospheric drag to perturb the orbit. This paper discusses the dynamics models developed to successfully navigate Cassini and determine its trajectory. This includes the moon's gravity pull with its second degree zonal harmonics J2, the attitude thrust control perturbations and the acceleration of drag.


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    Title :

    Flying by Titan



    Conference:

    International Astronautical Congress (IAC 2008) ; 2008 ; Glasgow, Scotland, United Kingdom


    Publication date :

    2008-09-29


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


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