@Article{NegriPradSukh:2017:StErEs,
               author = "Negri, Rodolfo Batista and Prado, Antonio Fernando Bertachini de 
                         Almeida and Sukhanov, Alexander",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Space Research 
                         Institute of Russian Academy of Sciences}",
                title = "Studying the errors in the estimation of the variation of energy 
                         by the “patched-conics” model in the three-dimensional swing-by",
              journal = "Celestial Mechanics and Dynamical Astronomy",
                 year = "2017",
               volume = "129",
               number = "3",
                pages = "269--284",
                month = "Nov.",
             keywords = "Flyby, Swing-by, Gravity-assisted maneuver, Patched-conics, 
                         Circular restricted three-body problem.",
             abstract = "The swing-by maneuver is a technique used to change the energy of 
                         a spacecraft by using a close approach in a celestial body. This 
                         procedure was used many times in real missions. Usually, the first 
                         approach to design this type of mission is based on the 
                         {"}patched-conics{"} model, which splits the maneuver into three 
                         {"}two-body dynamics.{"} This approach causes an error in the 
                         estimation of the energy variations, which depends on the geometry 
                         of the maneuver and the system of primaries considered. Therefore, 
                         the goal of the present paper is to study the errors caused by 
                         this approximation. The comparison of the results are made with 
                         the trajectories obtained using the more realistic restricted 
                         three-body problem, assumed here to be the {"}real values{"} for 
                         the maneuver. The results shown here describe the effects of each 
                         parameter involved in the swing-by. Some examples using bodies in 
                         the solar system are used in this part of the paper. The study is 
                         then generalized to cover different mass parameters, and its 
                         influence is analyzed to give an idea of the amount of the error 
                         expected for a given system of primaries. The results presented 
                         here may help in estimating errors in the preliminary mission 
                         analysis using the {"}patched-conics{"} approach.",
                  doi = "10.1007/s10569-017-9779-3",
                  url = "http://dx.doi.org/10.1007/s10569-017-9779-3",
                 issn = "0923-2958",
             language = "en",
           targetfile = "negri_studying.pdf",
        urlaccessdate = "27 abr. 2024"
}