三轴椭球体

将小行星Ivar近似为三轴椭球体，给出了非球形引力势函数，建立了航天器环绕小行星Ivar的轨道动力学方程。

The asteroid Ivar is modeled as a tri-axial ellipsoid , its sphere gravitational potential is given , and spacecraft orbital dynamics equation around the asteroid Ivar is established .

并且，在该小行星的形状取三轴椭球体和在几何反射定律等假定之下，给出了关于该小行星的光度变化理论。

A new photometric theory of Eros based upon a three-axis ellipsoid model at full phase obeying Lommel-Seeliger 's law is presented .

利用拉梅谐和函数理论，证明了共焦椭球成层分布三轴椭球体的外部引力位与均质三轴椭球体的外部引力位具有一致的形式。

The purpose of this paper is to give an analytical expression of a tri axes ellipsoid body 's gravitation potential with layered , focus tri axes ellipsoidal density distribution .

针对可以用三轴椭球体近似建模的小天体，给出了非球形引力势函数，建立了航天器绕飞小天体的轨道动力学方程。

In this paper , the irregular sphere gravitational potential is given based on adapting to a tri-axial ellipsoid model of a small body , and the spacecraft orbital dynamics equation around a small body is established .