How are multiple satellites seen from the ground? Relative apparent motion and formation stabilization  

作　　者：Kenta Nakajima Yasuhiro Yoshimura Hongru Chen Toshiya Hanada 

机构地区：[1]Department of Aeronautics and Astronautics,Kyushu University,744 Motooka Nishi-ku,Fukuoka,819-0395,Japan

出　　处：《Astrodynamics》2024年第1期121-134,共14页航天动力学（英文）

摘　　要：This paper answers how multiple satellites are seen from the ground. This question is inspired by space-advertising, a public exhibition in the night sky using a dot matrix of satellites that are bright enough to be seen by the naked eye. Thus, it is important for space advertisement that the specific dot matrix is seen. Moreover, the stability of the dot matrix during a visible span is very valuable. To stabilize the dot matrix, this study formulates an apparent position of a dot from a representative dot seen from the ground. The formulation, linear functions of a set of relative orbital elements, reveals the appearance of the dot matrix. The proposed relative variable in the formulation drives the instability of the dot matrix, thereby revealing an initial stable configuration of deputies from a chief. The arbitrary dot matrix designed using the configuration is stable even at low elevations without orbital control during the visible span.

关 键 词：formation flying relative motion STABILIZATION ASTRODYNAMICS multi-apparent motions space advertisement 

分 类 号：O17[理学—数学]