With passive control, the solar sail orbit is stable and its initial momentum determines the orbit parameters.
在只考虑轨道动力学的情况下，分析了太阳帆的被动控制。
Accurate measurement of the orbit parameters of the artificial satellite was provided by radio and optical stations.
人造卫星的精确轨道参数将由无线电和光学观测站测量得出。
And then line shift frequency of TDICCD and exposure time was researched to get the influence of orbit parameters on image.
接着对TDICC D行转移频率与工作曝光时间进行研究，分析了轨道参数对成像的影响。
This software can control servo tracking system basing on satellite orbit parameters and realize the real-time tracking of satellite.
本软件依据卫星轨道参数控制伺服跟踪系统，完成对卫星的实时跟踪。
The parameters of the orbit are perfectly normal. …… The cosmonauts are feeling well," said Russian flight director after the launch.
俄飞行指挥专家在发射后后不久说：“他们飞行正常，轨道各项指数也相当正常……宇航员感觉良好。”
It is shown selecting suitable parameters of molecular shield on low-earth orbit, we can process super pure materials in extreme high vacuum.
计算结果指出：在近地轨道选择合适的分子屏参数，可以在极高真空环境下加工超纯材料。
The concept and scheme for the simulation of attitude, orbit and important telemetry parameters of prolate dual-spin geostationary satellite have been given in the paper.
本文介绍了在计算机上进行细长型双自旋卫星姿态、轨道和重要遥测参数仿真的原理和方案。
Some parameters such as molar refractivity, frontier orbit energy, dipole moment, atom net charge of triazines were obtained by using the method of quantum-chemistry calculation.
通过量子化学计算方法得到三嗪化合物的摩尔折射率、前线轨道能量、偶极矩、原子静电荷等参数。
Military function and operation mechanism of low earth orbit satellites are introduced, and technical parameters of low earth orbit satellites are provided.
介绍了典型低轨道卫星的军事作用和运作机理，并给出了当前在轨低轨道卫星的技术参数。
In automatic mechanism selection system based on orbit, orbit characteristics and dimension parameters of key orbit segments are momentous for selecting mechanisms.
基于轨迹的机构自动化选型系统中，轨迹特征及关键轨迹段尺寸参数是选择机构的重要依据。
The traditional thermal environment parameters for near-earth orbit are compared with those currently adopted by international spacecraft thermal design community.
介绍了目前国际上普遍采用的近地轨道热环境参数与传统参数之间的差异。
The tracker's observed data are important parameters to determine the precise orbits of those orbit-known or unknown satellites.
光电人卫跟踪仪的观测数据是对已知或未知轨道卫星进行定轨的重要参数。
The theory analysis and simulation results indicate the spaceborne parasitic InSAR system can achieve perfect performance if the orbit and radar parameters are correct designed.
理论分析和仿真结果表明，在合理选择轨道和雷达参数的前提下，系统可以达到很好的测高精度。
Estimating the spacecraft's inertia parameters on orbit is good to control the spacecraft optimally and real-time.
在轨辨识出航天器的惯性参数，可以为更加优化、实时的控制航天器服务。
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.
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。
The parameters of a space manipulator on-orbit are unavoidably different from those before it was sent to the outer space for the effect of various factors.
由于各种因素的影响，在轨机械臂的结构参数势必不同于其在地面时的结构参数。
The parameters of a space manipulator on-orbit are unavoidably different from those before it was sent to the outer space for the effect of various factors.
由于各种因素的影响，在轨机械臂的结构参数势必不同于其在地面时的结构参数。
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