Yang Yang, Erik Klein, Changyong He, Han Cai, Yan Zhang
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PHiFA—A tool for numerical propagation of high-fidelity astrodynamics
This paper presents a tool for the numerical propagation of high-fidelity astrodynamics, called PHiFA. The coupled orbit-attitude dynamics for space objects are modeled by considering various types of perturbative forces and torques. Two methods have been implemented to calculate the surface forces: the area matrix method and the beam method. The beam method is more precise as it discretizes the source media (e.g., sunlight and aerodynamic wind) and the surface of the target into multiple rays and finite elements, respectively, and then accumulates the effect of each hit. The PHiFA tool was tested and validated using a 3U CubeSat model and the defunct European environment satellite (Envisat) model.
期刊介绍：
Astrodynamics is a peer-reviewed international journal that is co-published by Tsinghua University Press and Springer. The high-quality peer-reviewed articles of original research, comprehensive review, mission accomplishments, and technical comments in all fields of astrodynamics will be given priorities for publication. In addition, related research in astronomy and astrophysics that takes advantages of the analytical and computational methods of astrodynamics is also welcome. Astrodynamics would like to invite all of the astrodynamics specialists to submit their research articles to this new journal. Currently, the scope of the journal includes, but is not limited to:Fundamental orbital dynamicsSpacecraft trajectory optimization and space mission designOrbit determination and prediction, autonomous orbital navigationSpacecraft attitude determination, control, and dynamicsGuidance and control of spacecraft and space robotsSpacecraft constellation design and formation flyingModelling, analysis, and optimization of innovative space systemsNovel concepts for space engineering and interdisciplinary applicationsThe effort of the Editorial Board will be ensuring the journal to publish novel researches that advance the field, and will provide authors with a productive, fair, and timely review experience. It is our sincere hope that all researchers in the field of astrodynamics will eagerly access this journal, Astrodynamics, as either authors or readers, making it an illustrious journal that will shape our future space explorations and discoveries.
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