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据统计,截止1981年底,世界各国及国际组织共发射成功2772个宇宙飞行器(卫星、飞船和宇宙探测器)。苏联占1661颗,其中军用卫星1205颗。美国共发射939颗(国际通信卫星组织发射的“国际通信卫星”除外),其中军用卫星661颗。其它国家共发射成功172颗。世界各国共发射通信卫星537颗,成功进入同步轨道的占109颗。世界上已发射宇宙飞行器的国家和组织共19个,其中8个拥有自制运载火箭,它们是:苏联、美国、日本、欧空局、法国、英国、中国和印度,另外巴西将于1983年用自制火箭发射卫星。详细数据请参看表一、二、三及其注解。
According to statistics, as of the end of 1981, 2772 space vehicles (satellites, spacecraft and space probes) were successfully launched by various countries and international organizations in the world. The Soviet Union accounted for 1661, of which 1205 military satellites. A total of 939 U.S. launches were made (except for “International Telecommunications Satellites” launched by Intelsat, including 661 military satellites). Other countries launched a total of 172 successful. A total of 537 communications satellites were launched in all countries in the world and 109 successfully entered orbiting orbits. There are 19 countries and organizations in the world that have launched spacecraft, 8 of them own self-made launch vehicles: the Soviet Union, the United States, Japan, ESA, France, the United Kingdom, China and India, and Brazil will use it in 1983 Homemade rocket launch satellite. For details, please refer to Table 1, 2, 3 and their notes.