轨道根数(或称轨道要素或轨道参数)是描述在牛顿运动定律和牛顿万有引力定律的作用下的天体或航天器,在其开普勒轨道上运动时,确定其轨道所必要的六个参数。由于运动的方式有许多种的参数表示法,依照选定的测量装置不同,对相同的轨道,有几种不同的方式来定义轨道根数。
利用GPS接收机的导航信息精确确定接收机载体航天器的轨道根数。
This paper proposes an accurate orbit determination technique to accurately determine orbit elements of a spacecraft equipped with a GPS receiver according to navigation messages from the receiver.
利用变质量天体力学方法研究了太阳质量变化对小行星轨道根数的影响。
The influence of the variation of solar mass on the orbital elements of Asteroids is studied by using the method of Celestial Mechanics with variable mass.
研究了在高空电离层中运动的带电荷的卫星受电感应阻力后对轨道根数产生的摄动影响。
The influences of the electronic induction drag on the variation of the orbital elements of a charged satellite moving in a magnetic-field-free ionosphere are studied.
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