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@Article{MurciaPiņerosPrad:2019:ApImAe,
               author = "Murcia Piņeros, Jhonathan Orlando and Prado, Antonio Fernando 
                         Bertachini de Almeida",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Application of impulsive aero-gravity assisted maneuvers in Venus 
                         and Mars to change the orbital inclination of a spacecraft",
              journal = "Journal of the Astronautical Sciences",
                 year = "2019",
               volume = "1",
                pages = "1--19",
             keywords = "Astrodin{\^a}mica, Astrodynamics, Swing-By, Manobras Orbitais.",
             abstract = "Thse powered aero-gravity-assist is an orbital maneuver that 
                         combines three basic components: a gravity-assist 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 the terms coming from the aerodynamic 
                         forces. The present paper uses this type of maneuver considering 
                         that the trajectory of the spacecraft is in the ecliptic plane and 
                         the presence of the atmospheric Drag and Lift forces. The maneuver 
                         in the ecliptic plane can be done due to technologies that 
                         provides spacecraft with high values for the Lift to Drag ratio. 
                         The main advantage is that this maneuver allows the modification 
                         of the semi-major axis of the orbit of the spacecraft using the 
                         gravity of the planet and, at the same time, to change the 
                         inclination, using the high Lift that is perpendicular to the 
                         ecliptic plane. So, it is a combined maneuver that changes two 
                         important orbital parameters at the same time. The Lift is applied 
                         orthogonal to the initial orbital plane to generate an inclination 
                         change in the trajectory of the spacecraft, which is a very 
                         expensive maneuvers when made using propulsion systems. The Lift 
                         to Drag ratio used in the present paper goes up to 9.0, because 
                         there are vehicles, like waveriders, designed to have these 
                         values. When the spacecraft is passing by the periapsis of its 
                         orbit, an instantaneous impulse is applied to increase or decrease 
                         the variation of energy given by the aero-gravity-assist maneuver. 
                         The planets Venus and Mars are selected to be the bodies for the 
                         maneuver, due to their atmospheric density and strategic location 
                         in the Solar System to provide possible uses for future missions. 
                         Results coming from numerical simulations show the maximum changes 
                         in the inclination obtained by the maneuvers, as a function of the 
                         approach angle and direction of the impulse; the Lift to Drag 
                         ratio and the ballistic coefficient. In the case of Mars, 
                         inclination changes can be larger than 13°, and for Venus larger 
                         than 21°. The energy and inclination variations are shown for 
                         several selected orbits. The powered aero-gravity-assist maneuver 
                         generates inclination changes that are higher than the ones 
                         obtained from the powered maneuver and/or the aero-gravity 
                         maneuver.",
                  doi = "10.1007/s40295-019-00156-5",
                  url = "http://dx.doi.org/10.1007/s40295-019-00156-5",
                 issn = "0021-9142",
                label = "lattes: 7340081273816424 2 Murcia-PiņerosPrad:2019:ApImAe",
             language = "en",
           targetfile = "
                         
                         Murcia-Piņeros-Prado2019_Article_ApplicationOfImpulsiveAero-Gra.pdf",
        urlaccessdate = "23 jan. 2021"
}


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