@MastersThesis{Fabri:1987:PrAnÓr,
               author = "Fabri, S{\'e}rgio Mauri",
                title = "Propaga{\c{c}}{\~a}o anal{\'{\i}}tica de {\'o}rbitas de 
                         sat{\'e}lites artificiais",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "1987",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "1987-09-30",
             keywords = "m{\'e}todos anal{\'{\i}}ticos, elementos m{\'e}dios, 
                         m{\'e}todo de Brouwer, analysis (mathematics), artificial 
                         satellites, orbit calculation, mean, orbital mechanics, 
                         singularity (mathematics), variability.",
             abstract = "O objetivo principal do trabalho consiste em obter vari{\'a}veis 
                         que contornem os problemas de singularidade existentes nos 
                         procedimentos convencionais de propaga{\c{c}}{\~a}o 
                         anal{\'{\i}}tica de {\'o}rbitas de sat{\'e}lites. Mediante um 
                         rearranjo das express{\~o}es do m{\'e}todo de Brouwer, um novo 
                         conjunto de vari{\'a}veis {\'e} obtido. Essas vari{\'a}veis 
                         permitem transforma{\c{c}}{\~o}es de elementos osciladores em 
                         elementos m{\'e}dios e vice-versa. Os elementos m{\'e}dios 
                         s{\~a}o propagados analiticamente, considerando 
                         perturba{\c{c}}{\~o}es do geopotencial (zonais, at{\'e} J5). O 
                         procedimento pode ser tamb{\'e}m utilizado para fornecer 
                         elementos m{\'e}dios para outros procedimentos de 
                         propaga{\c{c}}{\~a}o anal{\'{\i}}tica de orbitais. ABSTRACT: 
                         The main task of this work consists in obtaining a set of 
                         variables which solve the existing problem of singularities in the 
                         usual procedures of analytical satellites orbit propagations. 
                         Through a rearrangement of Brouwer expressions, a new set of 
                         variables is obtained. These variables allow transformations of 
                         oscillating elements to mean elements and vice-versa. The mean 
                         elements are analytically propagated considering the geopotential 
                         perturbations (zonals, up to J_5). The method is also used to 
                         furnish mean elements for other analytical procedures for orbit 
                         propagation.",
            committee = "Pilchowski, Hans-Ulrich (presidente) and Siva, Wilson 
                         Cust{\'o}dio Canesin da (orientador) and Ferreira, Luiz Danilo 
                         Damasceno (orientador) and Moraes, Rodolpho Vilhena de",
           copyholder = "SID/SCD",
         englishtitle = "Analytical orbit propagation of artificial satellites",
                label = "5737",
             language = "pt",
                pages = "80",
                  ibi = "6qtX3pFwXQZ3r59YCT/GTdtg",
                  url = "http://urlib.net/ibi/6qtX3pFwXQZ3r59YCT/GTdtg",
           targetfile = "publicacao.pdf",
        urlaccessdate = "10 maio 2024"
}