宇宙機ミッション軌道への準解析的モデルの応用

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During the first year of project, we could follow closely its purpose related to the study of dynamics that will be used by DESTINY+ mission involving different perturbations over a spiral low-thrust trajectory. First of all, a complementary study to update the bibliography of the project was developed. The initial　development of dynamical models for different forces presented in the problem using Equinoctial elements was performed with the inclusion of different forces in the dynamical system. The forces due to low-thrust and the flattening at the poles of the Earth were modeled and included in the physical model adopted for the our investigations. As a result, the initial computation of the solutions for these models was performed and numerical results were obtained. These　results　showed that the implementation of the forces was successful, with the results being validated with works available in literature and also with a high precision orbit propagator. The implementation of the third-body perturbation due to Moon's gravitational pull is in progressing accordingly with the original plan. These first outcomes were presented in at the 33rd AAS/AIAA Space Flight Mechanics Meeting of the American Astronautical Society (Austin, Texas, January 15-19 2023) and published in the annals of the conference in a format of complete article.