LM-5 Ready for Rehearsal in the Second Half Year

<正>At 16:35 Beijing time on August 17,the second test run of the second-stage power system of LM-5 was conducted at the Beijing Institute of Aerospace Testing Technology and achieved success.By now,LM-5 has accomplished all major ground hot-fire tests and is ready for rehearsal at the Hainan launch site in the second half year,preparing for the first test flight scheduled in 2016.The LM-5 is the carrier rocket with the largest payload capacity currently developed by China,and is planned to launch the Chang’e 5 probe around 2017 from the     

Chang'e 4 Relay Satellite Queqiao Launched Atop A LM-4C

正China launched a relay satellite named Queqiao on a LM-4C launch vehicle from the Xichang Satellite Launch Center at 05:28 Beijing time on May 21,2018.It is the world’s first communications satellite that operates in the orbit around the second Lagrangian(L2)point of the Earth-moon system,     

LM-5 Rehearsal Rocket Transferred to Launch Pad

<正>On November 23,2015,the combination of LM-5 launch vehicle and Chang’e 5 explorer for rehearsal was transferred to the launch pad from the vertical assembly facility.Developed by CALT,LM-5 is the new-generation non-toxic launch vehicle with the largest launch capacity.LM-5launch vehicle and Chang’e 5 explorer began rehearsal at the launch site in September,2015 to ensure the maiden flight of LM-5 a complete success and     

为“嫦娥”披“嫁衣”,做“花轿”——记中国运载火箭技术研究院航天材料及工艺研究所

夜晚,一颗流星划过天空,流下炫丽的光彩。我们知道那是陨石飞过大气层燃烧时形成的景象。那么奔赴月球的嫦娥二号卫星是靠什么飞出大气层而毫发无伤的呢？     

Power System of LM-5 Second Core Stage Ready for Test Run

<正>The power system of LM-5 second core stage left the Tianjin factory of the Capital Aerospace Machinery Corporation to prepare for its test run at the Beijing Institute of Aerospace Testing Technology Propulsion,a subsidiary of Academy of Aerospace Liquid Propulsion Technology(AALPT).In fact,the power system test run of the second core stage would be more     

考虑月球扁率修正的月球卫星自主导航

针对月球扁率对月球紫外敏感器的月心方向矢量确定的不利影响,研究了月球紫外敏感器的测量原理和敏感到月平边缘时满足的几何约束,提出了一种考虑月球扁率的月心矢量确定方法。并进一步的结合地球敏感器和太阳敏感器的测量信息,研究了基于日地月方位信息的月球卫星自主轨道算法,并评估了月球方位确定算法对导航精度的影响。仿真结果表明,在太阳敏感器、地球敏感器和月球敏感器的精度分别为0.02°(3σ)、 0.05°(3σ) 和0.1°(3σ)的假设下,考虑月球扁率修正的月球卫星的自主导航位置精度能达到300m(3σ),导航速度误差能达到0.6m/s(3σ), 从而保证了环月卫星的导航精度。     

LM-3B Carrier Rocket Ready for Launch of Laosat-1

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月球卫星的冻结轨道

地球（及其它行星）、月球的卫星由于引力场的南北不对称性都存在冻结     

Chang'e 5 Undergoing Thermal Test

<正>Chang’e 5 probe has entered its critical phase of AIT.Units,except the lander,are undergoing thermal test.The flight model of Chang’e 5 is composed of an orbiter,a return capsule,a lander and an ascent unit.The thermal tests on the ascent unit,the lander-as-     

A LM-4C Successfully Launched the GF-5 Satellite into Space

正A LM-4C launch vehicle lifted off from the Taiyuan Satellite Launch Center at 02:28 Beijing time on May 9,launching GF-5 satellite into space.The launch mission was successfully completed with the satellite entering its preset sun-synchronous orbit.     

我国成功发射一颗返回式科学与技术试验卫星

8月29日15时50分,我国在酒泉卫星发射中心用长征2号丙运载火箭,成功地发射了一颗返回式科学与技术试验卫星。约9分钟后,卫星顺利进入预定轨道。这是我国发射的第19颗返回式科学与技术试验卫星。卫星由中国空间技术研究院研制。据有关部门介绍,这颗卫星将在太空预定轨道上运行若干天后返回地面。卫星运行期间,主要进行空间科学研究、国土普查和地图测绘等任务。用于发射卫星的长征2号丙运载火箭,由中国运载火箭技术研究院研制。这次发射是长征系列运载火箭的第78次飞行。自1996年10月以来,长征系列运载火箭已经连续36次发射成功。卫星在轨运…     

LM-3B Launches Tiantong 1 Satellite

正China Launched its first satellite for mobile communications on a LM-3B launch vehicle from the Xichang Satellite Launch Center at 0:22 on August 6,2016.The Tiantong 1 satellite was developed by the China Academy of Space Technology under CASC to provide all-weather,all-time stable and reliable mobile communications services to China and surrounding regions as well as to the Middle East,Africa,the Pacific and     

LM-2D Launches Zhangheng 1 Satellite

正China Seismo-Electromagnetic Satellite or Zhangheng 1 was launched aboard a LM-2D launch vehicle from the Jiuquan Satellite Launch Center at 15:51 Beijing time on February 2.The satellite entered it s orbit successfully,marking that China has becomes one of the few countries having an in-orbit satellite for high-accuracy geophysical field observation.The new satellite was developed     

Progress of Chang'e 5 Probe Project

正With the completion of the third phase test of the full-scale plume deflection demonstration test for the Chang’e 5 probe at the Beijing Institute of Aerospace Testing Technology,all working conditions of the Chang’e 5 full-scale plume deflection test have been completed.     

月球卫星GNC系统方案设想

本文介绍中国计划中的第一个绕月探测器的GNC(制导、导航与控制) 系统,简述其任务和性能指标,系统组成,工作模式,以及系统设计中解决的主要 问题。     

风云2号C气象卫星投入业务使用

7月14日，我国第一颗业务型静止气象卫星风云2号C在北京正式在轨交付。中国航天科技集团公司作为研制单位，将该卫星交付给应用单位——中国气象局。国防科工委主任张云川出席交付仪式，总装备部副部长张建启、国防科工委副主任兼国家航天局局长孙来燕、中国航天科技集团公司总经理张庆伟、中国气象局局长秦大河出席交付仪式并讲话。     

从《月球协定》看"嫦娥"探月之意义

我国第一个月球探测器"嫦娥一号"环月轨道器已发射成功,顺利进入环月轨道,建立了我国空间技术发展的第三个里程碑.我国已成为国际月球俱乐部的成员,必将对人类探索、开发和利用月球做出自己的贡献.国际上早就有一个外空条约叫《月球协定》,这个协定同我国正在实施的月球探测活动会有什么关系呢?本文试图通过对《月球协定》的分析,探讨我国实施月球探测的意义.     

A LM-2D Launches GF-6 Satellite

正A LM-2D launch vehicle lifted off from the Jiuquan Satellite Launch Center at 12:13 Beijing time on June 2,launching the GF-6 satellite as well as the Luojia-1 scientific experiment satellite into their preset orbits.The GF-6 satellite was developed by the China Spacesat Co,Ltd.,under the     

LM-2D Launch Vehicle Used for High-resolution Satellite 1 Mission

The LM-2D launch vehicle completed the final launch mission of 2012 by launching the Turkish GK-2 satellite in December 2012 and performed the first mission of 2013 by sending the High-resolution Satellite1,the first