Spacecraft's attitude prediction: solar radiation torque and the Earth's shadow

Spacecraft's attitude prediction: solar radiation torque and the Earth's shadow

Autor Zanardi, M. C. Google Scholar
Moraes, R. V. de Google Scholar
Cabette, RES Google Scholar
Garcia, R. V. Google Scholar
Moore, P. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Brazilian Inst Space Res
Resumo A semi-analytical approach is proposed to study the rotational motion of an artificial satellite, under the influence of torque due to the solar radiation pressure, and taking into account the influence of Earth's shadow. Using Andoyer variables the equations for the rotational motion are presented in extended Hamiltonian form. in order to get a solution for the state variables close to an actual motion, the considered model for the shadow function takes into account physical and geometric factors and three specific regions: shadow, penumbra and full light. A mapping for the shadow function is proposed and a semi-analytical process is applied. When the satellite is totally illuminated or it is inside the penumbra, a known analytical solution is used to compute the satellite's attitude. A numerical simulation shows, when the penumbra region is included, the attenuation of the rotational motion during the transition from the shadow to the illuminate region and vice versa. (c) 2005 Published by Elsevier Ltd on behalf of COSPAR.
Palavra-chave artificial satellite
attitude propagation
solar radiation torque
earth's shadow function
Andoyer's variables
Idioma Inglês
Data de publicação 2005-01-01
Publicado em Satellite Dynamics in the Era of Intredisciplinary Space Geodesy. Oxford: Elsevier B.V., v. 36, n. 3, p. 466-471, 2005.
ISSN 0273-1177 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 466-471
Fonte http://dx.doi.org/10.1016/j.asr.2005.01.070
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000235247800020
Endereço permanente http://repositorio.unifesp.br/handle/11600/28075

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