No dia 25 de Setembro de 2023, faremos a migração do Repositório Institucional para a versão 7.6 do sistema DSpace. Por este motivo, o Repositório Institucional ficará indisponível neste dia. Contamos com a compreensão de todos.

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dc.contributor.authorMoraes, Rodolpho Vilhena De [UNESP]
dc.contributor.authorRaimundo, Paula Cristiane P.
dc.contributor.authorKuga, Helio K.
dc.identifier.citationAdvances in the Astronautical Sciences, v. 130 PART 1, p. 923-933.
dc.description.abstractThe main target here is to determine the orbit of an artificial satellite, using signals of the GPS constellation and least squares algorithms implemented through sequential Givens rotations as a method of estimation, with the aim of improving the performance of the orbit estimation process and, at the same time, minimizing the computational procedure cost. Geopotential perturbations up to high order and direct solar radiation pressure were taken into account. It was also considered the position of the GPS antenna on the satellite body that, lately, consists of the influence of the satellite attitude motion in the orbit determination process. An application has been done, using real data from the Topex/Poseidon satellite, whose ephemeris is available at Internet. The best accuracy obtained in position was smaller than 5 meters for short period (2 hours) and smaller than 28 meters for long period (24 hours) orbit determination. In both cases, the perturbations mentioned before were taken into consideration and the analysis occurred without selective availability on the signals measurements.en
dc.relation.ispartofAdvances in the Astronautical Sciences
dc.titleOrbit determination using gps including perturbations due to geopotential coefficients of high degree and order and solar radiation pressureen
dc.typeTrabalho apresentado em evento
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionINPE - Sao Jose dos Campos
dc.description.affiliationUNESP, Guaratingueta - SP
dc.description.affiliationINPE - Sao Jose dos Campos, SP
dc.description.affiliationUnespUNESP, Guaratingueta - SP
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