Orbital behavior around a nonuniform celestial body

29th Workshop on Recent Developments in Computer Simulation Studies in Condensed Matter Physics

物理学;计算机科学

Rosson, Z.^1 ; Hall, F.^1 ; Vogel, T.^1

Department of Physics, Stetson University, DeLand

FL

32723, United States^1

关键词: Celestial bodies;    Center mass;    Gravitational accelerations;    Gravitational fields;    Simulation code;    Time step;    Two-dimension;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/750/1/012022/pdf
DOI  :  10.1088/1742-6596/750/1/012022

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

To effectively model the orbit around a nonuniform celestial body, detailed information needs to be determined of the perturbations. This research looked at one of the most crucial perturbations: the nonuniform gravitational field of a celestial body. Given an orbiting particle (a satellite), we utilized numerical methods to calculate its orbit in two dimensions around a discretized center mass structure. The gravitational acceleration imposed on the particle due to each mass point sums vectorally as the particle completes each infinitesimal time step of one orbit. There are noticeable effects on the orbit as the conditions of the center mass change. The development of a simulation code allows for the modelling of the orbit about an irregular body with satisfactory accuracy.