Self-Shadowing of a Spacecraft in the Computation of Surface Forces. An Example in Planetary Geodesy

Artificial Satellites: A journal of Planetary geodesy

G. Balmino^1¹ 

[1] 31401, Toulouse, France^1

关键词: Surface forces;    Self-shadowing;    Polyhedral decomposition;    Pixelation;    Mars Planet;   

DOI  :  10.2478/arsa-2018-0002

学科分类：地球科学(综合)

来源: Polska Akademia Nauk * Centrum Badan Kosmicznych / Polish Academy of Sciences, Space Research Center

【 摘 要 】

We describe in details the algorithms used in modelling the self-shadowing between spacecraft components, which appears when computing the surface forces as precisely as possible and especially when moving parts are involved. This becomes necessary in planetary geodesy inverse problems using more and more precise orbital information to derive fundamental parameters of geophysical interest. Examples are given with two Mars orbiters, which show significant improvement on drag and solar radiation pressure model multiplying factors, a prerequisite for improving in turn the determination of other global models.

【 授权许可】

Unknown