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@Article{MurciaPinerosPrad:2018:ImAeAs,
               author = "Murcia Pineros, Jhonathan Orlando and Prado, Antonio Fernando 
                         Bertachini de Almeida",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Impulsive aero-gravity assisted maneuvers in Venus and Mars to 
                         change the inclination of a spacecraft",
              journal = "Advances in the Astronautical Sciences",
                 year = "2018",
               volume = "162",
                pages = "3921--3936",
                 note = "AAS/AIAA Astrodynamics Specialist Conference, 2017; Stevenson; 
                         United States; 20 August 2017 through 24 August 2017.",
             abstract = "The impulsive or powered aero-gravity-assisted is an orbital 
                         maneuver that combines three basic components: A gravity-assisted 
                         with a passage by the atmosphere of the planet during the close 
                         approach and the application of an impulse during this passage. 
                         The mathematical model used to simulate the trajectories is the 
                         Restricted Three-Body Problem including aerodynamic forces. The 
                         present paper uses this type of maneuver considering atmospheric 
                         drag and lift forces. The lift is applied orthogonal to the 
                         initial orbital plane to generate an inclination change in the 
                         trajectory of the spacecraft, which are very expensive maneuvers. 
                         The lift to drag ratio selected goes up to 9.0, because there are 
                         vehicles, like waveriders, designed to have these values. When the 
                         spacecraft is located at the periapsis the impulse is applied to 
                         increase or decrease the variation of energy given by the 
                         aero-gravity-assisted maneuver. The planets Venus and Mars are 
                         selected to be the secondary bodies for the maneuver, due to their 
                         atmospheric density and strategic location to provide possible use 
                         for future missions in the solar system. Results of the numerical 
                         simulations show the maximum changes in the inclination obtained 
                         by the maneuvers as a function of approach angle and direction of 
                         the impulse, lift to drag ratio and ballistic coefficient. In the 
                         case of Mars, inclination change can be larger than 13, and for 
                         Venus higher than 21. The energy and inclination variations are 
                         shown for several selected orbits.",
                 issn = "0065-3438.",
             language = "en",
           targetfile = "AAS 17-752.pdf",
        urlaccessdate = "23 jan. 2021"
}


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