人造卫星轨道的能量消减了。
可直接用于制导，实时轨道计算，卫星轨道短期预报等。
It may be used in guidance, onboard orbit computation, and short term forecast of satellite orbit.
卫星轨道预报技术是与卫星通信及卫星回收的关键技术。
Satellite orbital prediction technology is a key technology for satellite communication and satellite recovery.
以地球为中心的最近点；人造卫星轨道上离地球中心最近的点。
Periapsis in earth orbit; the point in its orbit where a satellite is nearest to the earth.
本文提出了满足设计要求的地球资源卫星轨道参数的计算方法。
The paper offers the computation method of Earth Resources Technology Satellite orbit meeting the requirements.
以地球为中心的最远点；人造卫星轨道上离地球中心最远的点。
Apoapsis in earth orbit; the point in its orbit where a satellite is at the greatest distance from the earth.
本文介绍程序覆盖法在人造卫星轨道改进程序中应用的一个例子。
In this paper an example is given for the application of the routine overlay method to the retrofit program of the.
最有效的发射轨道应该在发射地点的东边，使卫星轨道倾度与发射点纬度相等。
The most efficient launch trajectory is due east from a launch site, which places the satellite into an orbital inclination equal to the latitude of the launch site.
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.
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.
利用切比雪夫多项式拟合广播星历的卫星坐标，以实现卫星轨道的标准化。
The Chebyshev polynomial was applied to fit satellite coordinates of the broadcast ephemeris to realize satellite orbit standardization.
其中轨道运动学约束包括地球停泊轨道约束、地月转移轨道约束和月球卫星轨道约束。
The restriction of orbital kinematics includes that of earth parking paths earth-moon transfer path, and lunar satellite path.
在几百或几千公里外的卫星轨道上向下俯瞰这个被太阳照耀的地球，文明的标志清晰可见。
Looking down from orbit hundreds or thousands of kilometers above the sunlit surface of the Earth, the signposts of civilization are clearly visible.
该平台可用于卫星轨道预报的地面测试及分析，应用数据库技术进行卫星及观察站点的管理。
Database is used to manage the satellites and position of observers. This platform is applied for ground test and analysis of orbital prediction.
在轨卫星运行仿真平台的研究涉及了卫星轨道力学，计算机仿真和地理信息技术等多学科领域。
The research of simulation platform of satellite in orbit involves some field including dynamics of satellite orbit, computer simulation and geographical information technology.
这是来自宇宙的数字图像，从中我们看到了几十个卫星轨道的数字表示，他们在高速旋转的地球。
This is an image from the digital Universe, in which we see the digital representation of the orbits of dozens of satellites as they rotate the Earth at high speed.
典型的月球探测器飞行轨道包括地球停泊轨道段、地月转移轨道段、月球卫星轨道段和着月轨道段。
A typical orbit of lunar probe includes earth parking orbit segment, earth-moon transfer orbit segment, lunar satellite orbit segment and moon-landing orbit segment.
研究了通过遗传算法模型优化设计侦察卫星轨道高度、轨道倾角、右升交点角及平近点角等轨道参数的方法。
Through the GA model, the orbital elements of each satellite such as altitude, inclination, RAAN and mean anomaly are optimized.
本论文将卫星轨道预报技术和计算机仿真技术相结合，提出了基于GIS控件建立卫星在轨运行仿真平台的设计思想。
In this thesis the idea of building a simulation platform of satellite in orbit based on GIS control is present, combining the orbit predict technology and computer simulation technology.
加州理工大学的乔迪普格-苏安里建立了一个所谓多微微卫星轨道部署器的部署机制或者简称P-POD，这种东西可以应用于立方体卫星。
Jordi Puig-Suari at California Polytechnic State University built a deployment mechanism called the poly picosatellite orbital deployer, or P-POD, that could pack up to three CubeSats.
届时地面控制人员将点燃助推器，把卫星送入预定轨道。
Ground controllers will then fire the booster, sending the satellite into its proper orbit.
一颗新的人造卫星被送上了环绕地球的轨道。
无线电开始传输大量信息，都是关于卫星的轨道路径、探测到的辐射量以及陨石的存在的。
Its radio begins to transmit an astonishing amount of information about the satellite's orbital path, the amount of radiation it detects, and the presence of meteorites.
地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
卫星被射入环绕月球的轨道。
一旦你来到这个塔旁的地球静止轨道，只需把碳纳米管电缆从卫星上放低然后将其系在位于地球的塔端。
Once you are in this geostationary orbit right over the tower, just lower your carbon nanotube cable down from the satellite, tether it to the tower here on Earth.
例如，亚利桑那州立大学的一个研究小组最近称，只需3000美元就能把他们开发的小型立方体卫星送入轨道。
For instance, a research group here at Arizona State University recently claimed their developmental small CubeSats could cost as little as $3,000 to put in orbit.
例如，亚利桑那州立大学的一个研究小组最近声称，他们开发的小型立方体卫星进入轨道的成本可能只有3000美元。
For instance, a research group here at Arizona State University recently claimed their developmental small Cube Sats could cost as little as $3,000 to put in orbit.
随着近地轨道（LEO）向更多非专业性的卫星开放，它们可能会构成越来越大的威胁。
As LEO opens up to more amateur satellites, they may pose an increasing threat.
随着近地轨道（LEO）向更多非专业性的卫星开放，它们可能会构成越来越大的威胁。
As LEO opens up to more amateur satellites, they may pose an increasing threat.
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