Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析国产福利大尺度写真在线观看、建立軌道攝動(dòng)計(jì)算模型的基礎(chǔ)上，首先采用基于軌道遠(yuǎn)免费在线播放黄片、近地點(diǎn)特征對(duì)大量編目在冊(cè)的空間碎片進(jìn)行初步幾何靜態(tài)篩選三级片色一区二区三区日本人,，然后根據(jù)碎片與目標(biāo)軌道面的相對(duì)位置特點(diǎn)把碎片分為異面與準(zhǔn)共面兩種情況以進(jìn)行動(dòng)態(tài)篩選，在篩選過(guò)程中考慮到預(yù)報(bào)時(shí)限長(zhǎng)度和軌道攝動(dòng)影響欧美激情性A片在线观看免费，引入了軌道攝動(dòng)中具有積累效應(yīng)的長(zhǎng)期項(xiàng)以滿(mǎn)足危險(xiǎn)時(shí)間點(diǎn)的捕捉要求男女激情边摸边做gif动态图，利用了長(zhǎng)期項(xiàng)攝動(dòng)變化線(xiàn)性的特點(diǎn)導(dǎo)出了碎片與目標(biāo)異面情況下各自過(guò)交線(xiàn)的時(shí)間序列成準(zhǔn)等差數(shù)列的規(guī)律性和準(zhǔn)共面情況下類(lèi)似的規(guī)律性，從而顯著地提高了前期軌道篩選的計(jì)算效率国产精品盗摄一区；最后對(duì)剩余危險(xiǎn)碎片和目標(biāo)飛行器利用SXP4軌道預(yù)報(bào)模型在前期軌道篩選的基礎(chǔ)上以各個(gè)危險(xiǎn)探測(cè)時(shí)間點(diǎn)為預(yù)報(bào)的時(shí)間起點(diǎn)国产综合久久精品综合AV无码，并根據(jù)預(yù)報(bào)計(jì)算結(jié)果，分析目標(biāo)和碎片在該時(shí)間點(diǎn)的運(yùn)動(dòng)趨勢(shì)是相互遠(yuǎn)離還是相互接近欧美呦系列com，推出預(yù)計(jì)最小相對(duì)距離發(fā)生時(shí)刻相對(duì)此刻的時(shí)間長(zhǎng)度91亚色视，得到其隨時(shí)間變化的局部最小相對(duì)距離以及危險(xiǎn)距離發(fā)生的時(shí)刻和相對(duì)速度，這是一個(gè)采用變時(shí)間步長(zhǎng)天天干天天舔天天插、快速逼近最小相對(duì)距離的過(guò)程欧美综合亚洲日韩精品区换脸。

In this dissertation, the design and optimization of lunar probe orbit has been studied by using the theory and method of spacecraft orbital dynamics, aiming at to launch polar moon satellite from the earth parking orbit, and considering synthetically the problems about the launcher energy, flying time, launch window and orbit navigation. The flying conditions, program and orbit of the lunar probe are given.

本論文利用航天器軌道動(dòng)力學(xué)理論和方法，以從地球停泊軌道入軌點(diǎn)出發(fā)發(fā)射月球極月衛(wèi)星的軌道為對(duì)象www.asmr5.com，綜合考慮運(yùn)載能力欧美XXXX欧美、飛行時(shí)間66jb影院是什么、發(fā)射窗口、軌道導(dǎo)航等問(wèn)題污黄色片99精品人人操人人插，進(jìn)行月球探測(cè)器軌道設(shè)計(jì)與優(yōu)化亚洲国产青春福利，給出月球探測(cè)器的飛行條件、程序及其軌道a片一级视频。

Stable and Unstable Orbit: An orbit is unstable if slight perturbations will cause the spacecraft moving on the orbit to leave the orbit and move far away.

穩(wěn)定和不穩(wěn)定軌道：不穩(wěn)定的軌道上欧洲欧美精品黄片，如果稍有擾動(dòng)將導(dǎo)致飛船在軌移動(dòng)到離開(kāi)軌道和移動(dòng)遠(yuǎn)。

Afterwards, using the spherical tensor form of many-electron atom Hamilton and the irreducible tensor theory, the relativistic and fine-structure energy correction to the non-relativistic energy of Boron-like atoms in the ground and the first excited states have been further investigated. A theoretically analytic way has been given as to the calculation of all the radial integrations and spin summations, which concern interactions such as orbit-orbit, spin-orbit, spin-spin and spin-other-orbit. Therefore, the whole process of calculating the many- electron atom energy structures has been explicitly revealed and the results are relatively precise and satisfactory.

在此基礎(chǔ)上欧美性爱AAAAA视频，利用多電子原子哈密頓算符的球張量形式和不可約張量理論91露脸经典对白，進(jìn)一步研究了類(lèi)硼離子基態(tài)和第一激發(fā)態(tài)非相對(duì)論能級(jí)的相對(duì)論修正和精細(xì)結(jié)構(gòu)，給出了軌道-軌道在线中文字幕亚洲日韩精品、自旋-軌道A片国产又色在线观看、自旋-自旋、自旋-其它軌道等相互作用所涉及的所有角向積分和自旋求和的解析計(jì)算方法2020国产精品视频观看，清晰地展示了多電子原子結(jié)構(gòu)計(jì)算的過(guò)程日韩精品欧美视频一区，得到了較為精確的理論計(jì)算結(jié)果。

Since different orbit has different orbit characteristic, this paper analyses the accuracy of orbit determination for Translunar orbit and Mission orbit separtely.

嫦娥1 號(hào)的整個(gè)飛行過(guò)程包括以地球?yàn)橹行牡恼{(diào)相軌道飛行欧美性爱在线视频播放、地月系之間的奔月飛行軌道以及環(huán)月軌道的飛行A级国产片免费观看。

Increasing observation accuracyand reducing the error of the measuring ship will improve the accuracy of orbit determination during Translunar orbit phase,and the reduced dynamic method and improvement of lunar gravity accuracy will benefit the accuracy of orbit determination during Misson Orbit phase.

在奔月階段，提高觀(guān)測(cè)量精度和減小測(cè)量船的點(diǎn)位誤差將有助于提高定軌精度jiZZjiZZjiZZ18中国，而在環(huán)月階段欧美在线性爱视频，采用減縮動(dòng)力學(xué)方法和提高月球重力場(chǎng)精度將有助于提高定軌精度。

This paper focus as on the Accuracy Analysis of orbit determination for the on-going Chinese lunar exploration mission 'Chang Er 1', using the joint tracking network of USB and VLBI with real network geographic distribution scenario and considering both systematic and stochastic measurement noise. The whole flight orbit of the Charng Er 1' includes Phasing orbit, Translunar orbit and Mission orbit.

本文以我國(guó)正在實(shí)施的探月計(jì)劃&嫦娥1 號(hào)&工程為背景多人伦交性欧美在线观看，分析了在我國(guó)USB 測(cè)控網(wǎng)和VLBI 跟蹤網(wǎng)的現(xiàn)有空間分布A黄色网、觀(guān)測(cè)弧段和盡可能接近真實(shí)情況的誤差源等前提下的探月飛行器的精密定軌。

Starting from the four concepts of orbit energy, energy class, shielding effect and infixing effect, the author uses the two commonly applied methods of caculation orbit energy to analyse and compare 4s orbit energy and 3d orbit energy.

本文從軌道能亚洲精品国产AⅤ综合第一、能級(jí)无遮拦av、屏蔽效應(yīng)和鉆穿效應(yīng)這四個(gè)概念入手，運(yùn)用計(jì)算軌道常見(jiàn)能量的兩種方法進(jìn)行分析和比較軌道能與 3d軌道

When the disturbing potential of 1m2/s2 accuracy, or the approximate velocity of accuracy less 2mm/s in the formula of the rotation of the gravity potential is required, the satellite orbit data not satisfied the potential rotation computing demand are rejected from the GFZs Rapid Science Orbit and TUMs ReducedDynamic Orbit. If the disturbing potential is desired 05m2/s2 at satellite track, the satellite velocity required in formula of the rotation of the gravity potential should be recomputed or the GFZs Postprocessed Science Orbit is adopted.

當(dāng)要求在衛(wèi)星軌跡處獲得1m2/s2精度的擾動(dòng)位時(shí)色色大综合，也即要求位旋轉(zhuǎn)效應(yīng)公式中衛(wèi)星速度的近似精度小于2mm/s時(shí)黄色视频在线一级视频，GFZ的快速科學(xué)軌道、TUM的約化動(dòng)力法軌道只需要剔除那些速度精度不滿(mǎn)足要求的衛(wèi)星軌跡點(diǎn)国产黄色导航；當(dāng)要求在衛(wèi)星軌跡處獲得05m2/s2精度的擾動(dòng)位時(shí)768av.com，應(yīng)當(dāng)重新估算上述軌道的速度信息，或采用精度更高的GFZ事后科學(xué)軌道女同免费一区二区。

Edit this paragraph the reasons for the color reaction of flame When the alkali metal and its salts in the ignition flame, the atoms absorb the energy of the electron from the orbit of low-energy transition to a higher energy orbit, but at a higher energy orbit is unstable electronic, it is fast transition back to a lower energy orbit, then the energy will be redundant form to emit light.

編輯本段焰色反應(yīng)的原因當(dāng)堿金屬及其鹽在火焰上灼燒時(shí)欧美一级A一级a爱片牲交高清，原子中的電子吸收了能量，從能量較低的軌道躍遷到能量較高的軌道，但處于能量較高軌道上的電子是不穩(wěn)定的久久性AV，很快躍遷回能量較低的軌道99热这里只有精品最新首页，這時(shí)就將多余的能量以光的形式放出。