New Progresses in Lao Satellite Project

The construction of the Lao telecommunications satellite ground station was completed and passed its initial acceptance by a working group assigned by Lao Government in March.The station is located on the Mekong River banks.The station covers 12 hectares,of which 10000m2 are construction area.The completion and acceptance of the ground station marked progress in the Lao telecommunications satellite project,laying the foundation for the follow-on Laosat-1 TT&C system and equipment installation and debugging.     

The Development of Environment Satellite System Initiated

China National Space Administration (CNSA) announced the initiation of the development of the small satellite system for environment and disaster monitor and forecast, whose goal is to improve national environmental protection abilityas well as the level of damage mitigation.     

我国载人空间站工程正式启动实施

<正>10月27日,中国载人航天工程新闻发言人对外称,我国载人空间站工程已正式启动实施。2020年前后将建成规模较大、长期有人参与的国家级太空实验室。     

China's First HTS Broadband Satellite Communications System Construction Initiated

正China Aerospace Science and Technology Corporation(CASC)and the People’s Government of Shenzhen Municipality co-hosted a ceremony for the contract signing of the high-throughput broadband satellite project and for the establishment of a joint venture on July23,marking the formal start of the construction of China’s first high-throughput broadband satellite communication system.The joint venture called APT Mobile     

China-Egypt Cooperation for Egyptian Space City Project Formally Initiated

正On May 15,2018,the China Nationa Space Administration(CNSA)and Egypt National Authority of Remote Sensing and Space Sciences(NARSSS)signed a MOU for the cooperation to establish the Egyptian Space City between CNSA and NARSSS within the Arab Republic of Egypt at Cairo,formally initiating the coopera-     

Belarus Communications Satellite Project Launched in Beijing

Belarus communications satellite project was launched in Beijing on January 29, 2013. CASC will develop and build a communications satellite for Belarus based on the DFH-4 satellite platform and launch the satellite using a LM-3C launch vehicle. This will be the first China-made communications satellite exported to the European market. A ceremony was held in Beijing, and Gurulev Sergei Petrovich, Chairman of the State Military-Industrial Committee of Belarus, Burya Victor Pavlovich, Ambassador Extraordinary and Plenipotentiary of Belarus to     

尼日利亚卫星项目进展顺利我国将实现整星出口零突破

2005年7月1日，中国向尼日利亚出口的尼日利亚1号通信卫星项目在北京通过初步设计评审，卫星研制、火箭生产、发射测控改造以及地面站建设等工作正按计划顺利进行。     

高分三号卫星项目管理实践经验

为确保高分三号(GF-3)卫星项目的圆满成功,深入剖析了卫星研制目标和项目管理特点,运用项目管理理论,从组织、计划、质量、物资、风险等各方面进行系统策划,综合管控。通过建立项目管理组织结构、加强项目队伍建设,提升能力;通过优化和细化流程、加强关键和短线项目管控、提前落实保障条件,保证进度;通过实施基于时间、要素和程序3个维度的全面产品保证,确保质量;通过采用集约化及专题管理机制,保证元器件配套;通过系统论证、专项管理和高效沟通,保证8年设计寿命专项工作实施;通过全面动态持续的风险管理,确保风险识别充分、控制有效。项目管理的实施,有效保证了高分三号卫星研制的成功。     

The First Satellite of Hongyun Project Launched Atop LM-11

正At 07:51 Beijing time on December22,a LM-11 launch vehicle soared up from the Jiuquan Satellite Launch Center,placing the first satellite of the Hongyun Project into orbit.Developed by the China Academy of Launch Vehicle Technology,LM-11 is the first solid launch vehicle among the LM     

科学双星自旋轴姿态漂移的仿真分析

以科学双星计划中两个自旋稳定的小卫星为背景,介绍了在双星运行轨道所受到的空间干扰力矩情况;建立数学模型,对无控条件下自旋卫星的姿态漂移情况进行数学仿真分析,并与实测结果进行比对。     

海南航天发射场破土动工

9月14日,海南航天发射场在海南省文昌市破土动工．标志着我国新建的这一开放型、环保型的现代化航天发射场已进入全面施工阶段。建设海南航天发射场是党中央、国务院、中央军委着眼我国航天事业长远发展作出的战略决策．是我国航天事业发展史上的又一座里程碑．     

Dark Matter Particle Explorer,the First Satellite of China Space Science Pilot Project

The Dark Matter Particle Explorer(DAMPE) is the first high energy detector satellite in China,whose physics goal is to find evidence of the existence of dark matter particles by investigating the composition and energy spectra of primary cosmic rays,especially those for electrons,positrons and gamma rays,over the dynamic range from 5 Ge V to 10 Te V.DAMPE is a satellite launched by China with the largest payload ratio,where the payload is composed of a BGO(Bismuth Germanate Oxide) Calorimeter,a Plastic Scintillator Detector,a Silicon Tungsten Tracker and a Neutron Detector.This paper introduces the technical scheme of DAMPE,including requirement analysis,composition,technical innovation,on-orbit status and prospect of development for the future.     

Ionospheric Irregularities Initiated by Planetary Waves

The nonstationary process of the accumulation of ions of meteoric origin, which is caused by propagation of planetary waves at altitudes of the lower ionosphere, is considered. Based on horizontal and vertical ion drift in planetary waves, a possibility of plasma density increases by a factor of 10–20 in comparison with the background concentration is demonstrated. This process takes place in areas of cyclonic motion with a scale of the order of 1500 km. The connection of this process with subsequent formation of midlatitude sporadic layers and irregularities producing radio reflections is considered. It is shown that the action of planetary waves on ions of meteoric origin is a necessary element in the scheme of the occurrence of midlatitude sporadic layers.     

我国火箭家族添新成员长征六号研制启动

日前．国家有关部门正式批复长征六号运载火箭立项。同时．由中国航天科技集团公司所属上海航天技术研究院承担的长征六号运载火箭的研制工作也正式启动。     

CASC Initiated Centimeter-level BeiDou Global Positioning System

正The construction of China’s first centimeter-level Bei Dou global positioning system is kicked off,according to the China Aerospace Science and Technology Corporation at the Zhuhai Airshow on November 1.The system is named asDragon.The Differential Reference Augmentation Global Overlay Network(DRAGON)system will calculate precisely parameters including ionospheric     

通信卫星平台的可靠性与航天保险

经过广大航天科技人员的努力,我国已研制出东方红二号和东方红三号通信卫星平台。目前我们正在加紧研制东方红四号平台,目标是达到国际上A2100、FS-1300和“空间客车”3000平台的水平。了解国际商业通信卫星在轨运行的可靠性及其主要故障情况,特别是了解保险界如何看待在轨卫星平台的可靠性,对东四平台的研制是十分有益的。近5年来,全球在轨运营的通信卫星屡屡出现故障或异常,用户提出的索赔案激增,招致航天保险界对卫星制造业的批评。这些问题对通信卫星运营商的业务和航天保险市场的稳定性已经产生严重影响。国际商业通信卫星平台综述目…     

印度直播卫星和国际合作的进展

发射失败难掩雄心继去年12月22日用欧洲阿里安5火箭将该国首颗直播卫星暨首颗第四代通信卫星——“印星”(INSAT)4A成功送上太空后,印度又在今年7月10日在其萨迪什·达万航天中心(SDSC)进行了“印星”4C卫星的发射,但不幸失败。这是印度首次用其“静地卫星运载器”(GSLV)火箭发     

International Cooperation on the Chinese Space Station Officially Initiated

正The announcement of the opportunity for international cooperation on the Chinese Space Station(CSS)was made at a ceremony hosted by the United Nations Office for Outer Space Affairs(UNOOSA)and the Permanent Mission of China to the United Nations and Other International Organizations in Vienna on 28 May.China officially initiated     

Telecommunications and the economic impact of communications satellites

This article provides several illustrations of the growing economic importance and scope of communications satellite service and discusses how rapid development of new telecommunications systems, particularly those that include communications satellite systems, serve as a major stimulant of economic growth. There is evidence that communications satellites are capable of making important economic contributions to developed and developing countries alike. The rapid proliferation of separate communications satellites, although stimulating economic growth, is giving rise to concerns about intersystem connectivity and saturation of the available radio frequencies in geosynchronous orbit. The growth of the communications satellite industry to an activity level of perhaps $10,000 million per annum by the mid-to-late-1980s could assist in the development of multipurpose space platforms that could minimize the problems created by satellite proliferation.