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1970年2月11日,日本从鹿儿岛航天中心,使用一枚兰达—4S—5(L—4S—5)运载火箭,将一颗名为“大隅”的试验卫星(重9.4千克)送入倾角31.04度,近地点339公里,远地点5138公里的地球椭圆形轨道。这使日本成为继苏、美、法之后,第4个拥有卫星发射能力的国家。日本发展运载火箭所走的道路,同法国基本相同,两国差不多是同一时期起步,都是走的从探空火箭发展到运载火箭,从固体火箭到液体火箭的道路。日本运载火箭的研制先从固体火箭入手,主要有以下几个原因:1、固体火箭比液
On February 11, 1970, Japan used a Lanta -4S-5 (L-4S-5) launch vehicle from Kagoshima Space Command Center to send a test satellite named “Daiyu” (9.4 Kg) into the inclination of 31.04 degrees, 339 kilometers near the site, a distance of 5138 kilometers of the Earth’s elliptical orbit. This made Japan the fourth country with satellite launch capability following the Soviet Union, the United States and France. The road taken by Japan to develop a launch vehicle is basically the same as in France. The two countries started from the same period almost at the same time, and both took the route from sounding rockets to launch vehicles and from solid rockets to liquid rockets. Rocket Launch Rocket start from the solid rocket, mainly for the following reasons: 1, solid rocket liquid than