升交点

利用升交点经度进行轨道设计的方法

Method for orbit design using longitude of ascending node

考虑月球升交点黄经的地月低能转移轨道

Low Energy Transfer Orbit to the Moon Considering Longitude of the Ascending Node of the Moon

首先研究了通过改变轨道半长轴调整航天器升交点赤经变化率，进而控制轨道法向振幅的方法；

First , a new method of controlling the swing of orbit normal axis by changing the semi studied ;

文摘：以升交点经度的范围来描述所有能覆盖到目标的轨道。

Abstract : all orbits by which targets can be covered are described according to the longitude of ascending node .

文章对半长轴、偏心率、倾角、升交点赤经相近的两航天器的远距离轨控接近方案进行了理论分析。

The orbit control technology of two long-distance satellites with similar semi-major axis , eccentric angle and inclination RAAN was analyzed .

另外，平面外倾角调整应尽可能在近地点和远地点完成，以使对升交点赤经的影响最小。

Moreover , out-plane inclination maneuver should be completed at perigee or apogee to influence right ascension of ascending node the least .

当月球运行到黄道和白道的升交点和降交点附近时，才会日食。

Only when the moon to run , and yellow or white Road intersection near the intersection and down only when a solar eclipse .

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 .

探讨了卫星相对于天基的运动特性，并利用地基运动特性的结果，得到了卫星相对于空间站在过顶时间限制条件下的升交点取值范围。

According to the results of small satellite to ground station , the longitude ranges of ascending node limited by the cross-time can be gained relative space station .

采用覆盖带技术，在全球多重连续覆盖、定倾角的条件下进行了星座设计。星座形式采用180°升交点分布，并考虑相邻轨道间的相对相位。

More general inclined orbit and phased constellation of 180 ° nodal distribution which provides multiple global continuous coverage is investigated and designed using street of coverage technique .

在轨道关联中考虑到初轨计算的误差特征，选取近地点高度、轨道倾角和升交点赤经作为用于关联的轨道量。

The height of perigee , inclination and right ascension of ascending node ( RAAN ) are chosen as characteristic quantity in the orbit correlation considering the character of the error of IOD process .

本文简述了（1）流星群轨道升交点的变化和周期的变化都与喷发速度密切相关，（2）从流星雨的观测结果可推断出喷发速度，（3）喷发速度的理论模型和结果。

We briefly summarize our works in the node change and the period change of the stream related to the ejection , the ejection velocity deduced from meteor stream observation and the theoretical model of cometary ejection .

文章分析了月球在一个恒星月内位置变化与相应的地月转移轨道升交点赤经和近地点幅角变化的关系，在这个基础上讨论了发射机会和发射窗口问题。

The relation of the right ascension and argument of perigee of the required orbit with the lunar position is derived within one lunar month . Based on this relationship the launch opportunity and launch window are discussed .

经χ~2检验可知。东北浅震受18.6年周的月球升交点运动和22年周的太阳黑子磁场交变影响较显著。

, By using x ~ 2 test method , it is found that shallow shockes are under the influence of the motion of rising intersection of Lunar with 18 . 6 years 's cycle and sunspot magnetic variation period per 22 years .

在轨道六要素的基础上，分析了卫星太阳同步轨道设计时降（升）交点地方时、升交点赤经，以及冻结轨道参数等的确定方法。

The determination method of descending / ascending node , longitude of ascending node and frozen orbit parameters for sun-synchronous orbit satellite design was analyzed on the basis of six general orbital elements .