author = "Gomes, Vivian Martins and Piñeros, Jhonathan O. Murcia and Prado, 
                         Antonio Fernando Bertachini de Almeida and Golebiewska, Justyna",
          affiliation = "{Universidade Estadual Paulista (UNESP)} and {} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Adam Mickiewicz 
                title = "Atmospheric close approaches with the Earth considering drag and 
                         lift forces",
              journal = "Computational \& Applied Mathematics",
                 year = "2015",
               volume = "2015",
                pages = "1--17",
             keywords = "Astrodin{\^a}mica, Swing-By.",
             abstract = "A maneuver called Aero-Gravity Assisted is known in the literature 
                         to increase the energy gains given by a close approach between a 
                         spacecraft and a planet using the atmosphere of the planet. In a 
                         sequence of studies related to this problem, the present paper 
                         studies close approaches between a spacecraft and the Earth, in 
                         situations where the passage is close enough to the surface of the 
                         Earth such that the spacecraft crosses its atmosphere. The 
                         dynamical model considers the atmosphere of the Earth, in terms of 
                         drag and lift, the gravitational fields of the Earth and the Sun, 
                         assumed to be points of mass, and the spacecraft. The Earth and 
                         the Sun are assumed to be in circular coplanar orbits around their 
                         common center of mass. The equations of motion are the ones given 
                         by the circular planar restricted three-body problem with the 
                         addition of the forces generated by the atmospheric drag and lift. 
                         The primary objective is to map the variations of energy of the 
                         orbits of the spacecraft due to this close approach. The results 
                         show how the atmosphere affects the trajectory of the spacecraft, 
                         generating situations where the variation of energy changes sign 
                         with respect to the gravity part of the maneuver or where they 
                         have a zero net result, based in the equilibrium.",
                  doi = "10.1007/s40314-015-0256-x",
                  url = "http://dx.doi.org/10.1007/s40314-015-0256-x",
                 issn = "2238-3603",
                label = "lattes: 7340081273816424 3 GomesPiñePradGole:2015:AtClAp",
             language = "en",
           targetfile = "1_gomes.pdf",
        urlaccessdate = "27 jan. 2021"