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published in(发表于) 2016/4/6 6:18:48
India will launch an arrow 22 stars, wants to break a record in China

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India will launch an arrow 22 stars to break a record in China (photo) | India |-satellite _ news

Map: India PSLV launch vehicle


India plans in mid-May in the sadishi·dawan Space Center, uses PSLV-CA rockets to fire an arrow star 22 satellites. If the launch is successful, it will go beyond a arrow first flew on September 20 last year long sixth 20 star, set a new Asian record.


The PSLV-CA Rocket orbit Sun-synchronous orbit 22 satellites include: remote sensing satellite weighs about 700 kilograms of Cartosat-2C (load), 4 micro-satellites (each weighing 85-130 kg) and 17 Nano-satellites (each weighing 4-30 kg). With 18 satellites from the United States, and Canada, and Germany and Indonesia and other foreign bodies.


Cartosat-2C remote sensing satellites are India development of multispectral imaging and remote sensing satellites, Max resolution up to 0.62 m, 5-year design life. 4 small satellites include: M3MSAT (Canada, used to collect and study near-Earth orbit signal automatic recognition system), LAPAN A3 (Indonesia, Earth's magnetic field monitoring satellite), BIROS (Germany, remote sensing satellite), SKYSAT Gen2-1 (United States, Earth imaging satellites). Other Nano satellites including the United States, and Canada show to test the Earth imaging satellites and atmospheric greenhouse-gas monitoring satellite.


 An arrow star technology


Extra arrow to a star, that is launched by a rocket while technology has several satellites into Earth orbit. Multiple star can take full advantage of an arrow launch vehicle capacity cushion, economical and convenient to put satellites into orbit round the Earth, offers a variety of options for satellite launch services model, is particularly important for the development of micro-satellite.


At present, only the United States, and Russia, China, India, the European Space Agency, Japan and other extra arrow to master a technique. Extra arrow to a technical field of stars on the international competition on November 19, 2013, the United States created "arrow 29 stars" world record, and then only two days, Russia successfully conducted "one 32 stars." A year later, Russia an extra arrow to refresh a star's world record in June 2014, Russia "Dnepr" rocket successfully put 37 satellites into orbit.


A stone star, satellite technology, satellite control technology, measuring and control technology with high requirements. A stone multi-satellite technology on the development of ballistic missiles hierarchical multiple-warhead technology is of great significance, which also includes India, countries develop an arrow star technology more important reason.


Miniaturization and modularization, integration is the trend of satellite development, micro-satellite with a technical low threshold, the advantages of low cost and short development time, a relevant professional undergraduate students of the University will be able to develop. However, the micro-satellite launch was a problem, a separate high launch costs. An extra arrow star appearing, you can greatly reduce satellite launch costs.


India on April 28, 2008 launch of successful one 10 stars, created the Asian record. On September 20, 2015, the long sixth successful maiden flight 20 micro-satellites into orbit, set a new Asian record and maintained ever since.


India proposed in Viet Nam to build satellite ground stations to monitor Chinese military activity


Chinese carrier Super strength training India throat swallow swallow their




Responsible editor: Zheng Hanxing





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印度将发射一箭22星 欲打破中国保持记录(图)|印度|卫星_新闻资讯

图:印度PSLV运载火箭


  印度计划于5月中旬在萨迪什·达万航天中心,使用PSLV-CA火箭以一箭多星的方式发射22颗卫星。如果发射成功,将超越我国去年9月20日长征六号首飞的一箭20星,创造新的亚洲记录。


  此次PSLV-CA火箭的发射轨道为太阳同步轨道,22颗卫星包括:重约700公斤的Cartosat-2C遥感卫星(主载荷)、4颗微小卫星(每个重85-130公斤)和17颗纳米卫星(每个重4-30公斤)。其中有18颗卫星来自美国、加拿大、德国和印度尼西亚等国外机构。


  Cartosat-2C遥感卫星是印度研制的多光谱成像遥感卫星,最高分辨率达0.62米,设计寿命5年。4颗微小卫星包括:M3MSAT(加拿大,用于收集和研究近地轨道信号的自动识别系统)、LAPAN A3(印度尼西亚,地球磁场监测卫星)、BIROS(德国,遥感卫星)、SKYSAT Gen2-1(美国,地球成像卫星)。其它纳米卫星包括美国、加拿大用于测试地球成像的演示卫星和大气温室气体监测卫星。


  一箭多星技术


  一箭多星,即用一枚运载火箭同时或先后将数颗卫星送入地球轨道的技术。一箭多星可以充分利用运载火箭的运载能力余量,经济便捷地将卫星送入地球轨道,为卫星发射服务提供多种选择模式,对微小卫星的发展而言尤其重要。


  目前,只有美国、俄罗斯、中国、印度、欧洲航天局、日本等掌握一箭多星技术。国际上一箭多星技术领域竞争激烈,2013年11月19日,美国创造了“一箭29星”的世界纪录,然后仅仅两天,俄罗斯便成功进行“一箭32星”。一年后,俄罗斯又一次刷新了一箭多星的世界纪录,2014年6月,俄罗斯“第聂伯”运载火箭成功将37个卫星送入轨道。


  一箭多星,对星箭分离技术、卫星控制技术、测控技术等具有很高的要求。一箭多星技术对发展弹道导弹分层式多弹头技术具有重要的意义,这也是包括印度在内的多个国家大力发展一箭多星技术的重要原因。


  小型化、模块化、集成化是卫星研制的趋势,微小卫星具有技术门槛低、成本低、研制时间短等优点,一个大学相关专业的本科学生就能研制。然而,微小卫星的发射是一个难题,单独发射成本高。一箭多星的出现,可以极大的降低单颗卫星的发射成本。


  印度曾于2008年4月28日成功进行一箭10星的发射,创造亚洲记录。2015年9月20日,我国长征六号首飞成功将20颗微小卫星送入轨道,创造新的亚洲记录,并保持至今。


印度拟在越南建卫星地面站 可监测中国军事活动


中国航母超强度训练让印度如鲠在喉 苦果自己咽




责任编辑:郑汉星





文章关键词:
印度 卫星

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