地球轨道偏心率的变化大约在96000年的一个周期内发生。
Changes in the eccentricity of Earth's orbit occur in a cycle of about 96,000 years.
这又怎样取决于轨道偏心率？
以金星借力轨道设计为例，分析了轨道偏心率与轨道倾角增量之间的关系。
Taking the design of Venus gravity-assist trajectories as an example, the relation between orbital eccentricity and orbital inclination was analyzed.
讨论了143颗早型和125个晚型双星系统轨道偏心率与轨道周期间的关系。
In this paper, we discuss the orbital eccentricity distribution for 143 early-type and 125 late-type binary systems.
研究轨道倾角、轨道高度、GPS天线仰角和轨道偏心率等因素对多普勒频率搜索范围的影响。
The orbital inclination, orbital altitude, elevation of GPS antenna and orbital eccentricity were researched as the influential factors to doppler range.
由于钡星系统是由普通红巨星双星系统演化而来，因此钡星系统的轨道偏心率及周期的分布显示了经过质量吸积后双星系统的最终轨道特征。
As Ba star systems are evolved from G-K star systems, the distribution of orbital eccentricities and periods of Ba stars can show the final orbital character of binaries.
导航卫星一般采用近圆轨道，当卫星轨道偏心率或者轨道倾角接近于零时，利用GPS卫星开普勒轨道根数拟合卫星广播星历会出现一些问题。
When their orbit eccentricity or inclination are near zero, some problems may occur when the GPS Kepler orbit elements fitting method is applied to fit their broadcast ephemeris parameters.
由于偏心率小，我们假定地球绕太阳的轨道和月球绕地球的轨道都是圆形。
Since the eccentricities are small, we can assume that the orbits of the Earth around the Sun and the Moon around the Earth are both circles.
本方法具有以下优点： （1）本方法适用于任意偏心率的卫星轨道。
This method has following advantages: (1)The method is useful for satellite orbit of any eccentricity.
为了保证冻结轨道的冻结特性，平面内轨道控制需要对半长轴、偏心率和近地点幅角都控制。
In order to guarantee the characteristics of frozen orbit, in-plane orbit control needs to adjust the semi-major axis, eccentricity, argument of perigee simultaneously.
请算出该小行星轨道可能的最小偏心率的值。
Please find the minimum possible value of the eccentricity of the asteroid's orbit.
并且根据卫星群偏心率与倾角综合的分离思想，讨论了两种策略，使得卫星群的构形可通过每个成员的轨道要素简单表出。
The satellites follow a combined eccentricity and inclination vector separation strategy, so that the group geometry can be expressed simply by the orbital elements of each member.
可忽视地球轨道的偏心率，自转，恒星自行和大气折射。
Please disregard the eccentricity of the Earth's orbit, self motions of the stars and all atmospheric effects.
可忽视地球轨道的偏心率，自转，恒星自行和大气折射。
Please disregard the eccentricity of the Earth's orbit, self motions of the stars and all atmospheric effects.
应用推荐