orbital elements

The concept and the definition of the reference orbital elements are introduced using spherical geometry. In terms of the reference orbital elements, governing equations for relative motion are formulated.

利用球面几何方法，引入参照轨道要素概念，给出其定义，并推导了用其描述的从星相对运动方程的精确形式。

Changes of the Earth's Orbital Elements and the Quaternary Glacial Epoch

地球轨道根数变化与第四纪冰期

The brief note gave the orbital elements of the hypothetical planet.

那张纸上写了那颗假想行星的轨道参数.

The determination method of descending/ ascending node, longitude of ascending node and frozen orbit parameters for sun-synchronous orbit satellite design was analyzed on the basis of six general orbital elements.

在轨道六要素的基础上，分析了卫星太阳同步轨道设计时降（升）交点地方时、升交点赤经，以及冻结轨道参数等的确定方法。

Black body temperature, orbital elements, the Milankovitch precession index, and the Seversmith psychroterms.

黑体温度 、 轨道要素 、 米兰科维奇进动指数及Seversmith精神分析项.