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The author:(作者)hpmailer
published in(发表于) 2013/12/2 10:12:51
Whole process of goddess the third task will go through five key flight control stage

China News Agency, Beijing, December 2 (Xinhua open Ouyang Yu) Chang-third mission primarily through 5 key flight control stages of the whole process: launch and in-orbit, respectively; the earth-moon transfer; the Moon; power down; the lunar surface. This was revealed Li Jian, Vice Director of the Beijing Aerospace command and control center for information.

Chang, third two hours before the launch, Li Jian said at the Beijing Aerospace city reporters to become immortal, the third number is the latest development in China's lunar probe, spacecraft extraterrestrial object landing in China for the first time.

It is understood that the Moon exploration project in accordance with the "winding, falls, go back to" three-step development strategy in three phases to become immortal, the third mission to achieve "the fall" is the key transitional step.

"From today until December 14, we will organize the implementation of Chang e, third launch into orbit, the earth-moon transfer and moon flight control work. "Li Jian said.

Li Jian said, 2nd to become immortal, the third will consist of a long third b-Kaiji (CZ-3B/G2) launched rocket from the Xichang satellite launch Center. Flying approximately 1130 second, probe separated from the rocket and entered a perigee of 200 kilometers and apogee of 380,000 kilometers earth-moon transfer orbit. Beijing flight control centre to be launched in Xiamen during the station track, control Chang the third probe, complete attitude control pipe exhaust, arrow after the separation, during the survey ship, YuanWang sixth track, Chang e, third for a stable flight attitude, subsequently landing cushion body and solar array.

Li Jian said that the earth-moon transfer, Chang will be 1 to 3 times, third amendment, flying approximately 112 reaches a surface height of 100 km/h in recent months. In the earth-moon transfer period, Center of Beijing could time such a deep space interferometry experiments and three measurement accuracy compliance test.

Li Jian said, detector arrived in in recent months points Hou, in Beijing Center control Xia, plans Yu December 6, using 7,500 cattle changed thrust engine, implementation once in recent months brake, entered height for 100 km of ring months round track; ring months track run 4 days Hou, plans Yu December 10, ground control detector in moon back completed deceleration brake, entered in recent months points height 15 km, and far months points height 100 km of oval track; continues to run 4 days Hou, detector arrived power declined paragraph starting location, Launched power declined.

Li Jian said to become immortal, the third moon probes including the lander and visit. Lander and inspections during flight through connections with clamping screws, probe soft-landing after months, control the lander release visits, inspections and the lander began mutual imaging, controlling both their lunar surface exploration work. (End text)

(Original title: the whole process of goddess third mission phase will go through five key flight control)

　　中新社北京12月2日电 (记者 欧阳开宇)嫦娥三号任务全过程主要经历5个关键飞控阶段：分别是发射及入轨段；地月转移段；环月段；动力下降段；月面工作段。这是北京航天飞行控制中心副主任李剑透露的信息。

　　嫦娥三号发射升空前两个小时，李剑在北京航天城记者见面会上说，嫦娥三号是中国最新研制的月球探测器，将首次实现中国航天器在地外天体软着陆。

　　据知，探月工程按照“绕、落、回”三步走的发展战略，分三期实施，嫦娥三号任务实现的“落”是承前启后的关键一步。

　　“从今天起到12月14日，我们将组织实施嫦娥三号发射入轨、地月转移和环月段的飞控工作。”李剑说。

　　李剑说，2日凌晨1时30分，嫦娥三号将由长征三号乙改二型(CZ-3B/G2)运载火箭从西昌卫星发射中心发射升空。飞行约1130秒，探测器与火箭分离，进入近地点200公里，远地点38万公里地月转移轨道。北京飞控中心将在发射段厦门站跟踪期间，控制嫦娥三号探测器完成姿控管路排气，器箭分离后，在远望六号测量船跟踪期间，嫦娥三号建立稳定飞行姿态，随后展开着陆缓冲机构和太阳帆板。

　　李剑说，地月转移段，嫦娥三号将实施1至3次修正，飞行约112小时到达距离月面高度100公里的近月点。在地月转移期间，北京中心将择机组织深空干涉测量试验和三向测量精度验证试验。

　　李剑称，探测器抵达近月点后，在北京中心控制下，计划于12月6日，使用7500牛变推力发动机，实施一次近月制动，进入高度为100公里的环月圆轨道；环月轨道运行4天后，计划于12月10日，地面控制探测器在月球背面完成减速制动，进入近月点高度15公里、远月点高度100公里的椭圆轨道；继续运行4天后，探测器到达动力下降段起始位置，开始实施动力下降。

　　李剑介绍说，嫦娥三号月球探测器包括着陆器和巡视器。着陆器和巡视器在飞行过程中通过连接压紧机构固定在一起，探测器软着陆月面后，控制着陆器释放巡视器，巡视器和着陆器开始互拍成像，控制两器各自开展月面探测工作。(完)

（原标题：嫦娥三号任务全过程将经历五个关键飞控阶段）

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