文章在分析了卫星轨道外热流和平均温度的周期分布后，对其温度进行了实时预测。
In this paper, satellites temperature is predicted on-line after the analysis to the cycles of orbital external thermal current and average temper a ture.
速度差各分量的变化具有很明显的周期性且与卫星轨道的运行周期相吻合。
The variations of velocity difference have obvious periodicity, which coincides with the satellite orbit period.
对话框左边的目录显示了当前数据文件中的卫星名称及其按分钟计算的轨道周期。
The list on the left side of the dialog shows the names of all the objects in the current data file, together with each object's orbital period in minutes.
对地观测卫星轨道具有全球目标覆盖和太阳同步两种特性，通过设计轨道周期和轨道倾角可以获得这些特性。
Global coverage and sun synchronization are the essential properties of the earth observation satellites, which are assumed by designing the orbit period and inclination.
编队卫星相对距离较大，非线性因素不可忽略时，利用非线性周期运动条件，可找到不需消耗任何燃料的周期性相对运动轨道。
When the relative range was large and the effects of nonlinearity could not be neglected, the nonlinearity periodic relative rotating orbits could be found using the nonlinearity initial conditions.
在极地圆轨道上工作的对地定向磁控小卫星，其动力学方程是一个线性周期系统。
The magnetic control system for polar orbiting, nadir pointing small satellite is studied in this paper. It is shown that the dynamics with magnetic control system is a linear periodic system.
由于地磁场的方向在轨道上周期变化，卫星的姿态动力学方程是一个线性周期系统。
Since the geomagnetic field varies periodically on orbit, the dynamics of satellite is a linear periodic system.
MEO和IGSO卫星在一个轨道周期内星历参数拟合结果的变化规律相近，但是与GEO卫星的差异较大。
It also shows that the variety laws of the fitting result of broadcast ephemeris for MEO and IGSO satellites are similar to each other and are different to GEO satellites.
电动力绳系卫星的推力幅值较小且方向固定，完成轨道机动任务的周期长，其最优控制问题的求解比较困难。
Electrodynamic tethers with low thrust-to-weight ratios can only perform orbital transfers over a large number of revolutions, which poses a real challenge to short time scale optimal control methods.
电动力绳系卫星的推力幅值较小且方向固定，完成轨道机动任务的周期长，其最优控制问题的求解比较困难。
Electrodynamic tethers with low thrust-to-weight ratios can only perform orbital transfers over a large number of revolutions, which poses a real challenge to short time scale optimal control methods.
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