Analytical Prediction of the Spin Stabilized Satellite's Attitude Using The Solar Radiation Torque

16th Brazilian Colloquium on Orbital Dynamics

Motta, G.B.^1 ; Carvalho, M.V.^1 ; Zanardi, M.C.^1

Group of Orbital Dynamic and Planetology, São Paulo State University, Av. Ariberto Pereira da Cunha, Guaratinguetá, São Paulo, Brazil^1

关键词: Analytical predictions;    Data collection;    Pointing deviation;    Right ascensions;    Satellite spins;    Solar radiation torque;    Spin stabilized satellite;    Time evolutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/465/1/012009/pdf
DOI  :  10.1088/1742-6596/465/1/012009

来源: IOP

【 摘 要 】

The aim of this paper is to present an analytical solution for the spin motion equations of spin-stabilized satellite considering only the influence of solar radiation torque. The theory uses a cylindrical satellite on a circular orbit and considers that the satellite is always illuminated. The average components of this torque were determined over an orbital period. These components are substituted in the spin motion equations in order to get an analytical solution for the right ascension and declination of the satellite spin axis. The time evolution for the pointing deviation of the spin axis was also analyzed. These solutions were numerically implemented and compared with real data of the Brazilian Satellite of Data Collection-SCD1 an SCD2. The results show that the theory has consistency and can be applied to predict the spin motion of spin-stabilized artificial satellites.