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2011年度全球共进行84次运载火箭发射活动,共发射各类航天器142个(含发射失败),发射数量比2010年明显增多,但发射失败和在轨发生故障的航天器也显著增加。全年国外共发生航天器故障事件74次,涉及58个航天器,其中发生I类故障(导致航天器全损或任务失败的重大故障)的航天器有15个,发生II类故障(导致航天器部分功能丧失或寿命显著减少的重要故障)的航天器有25个。
In 2011, a total of 84 launches of launch vehicles were carried out globally, involving a total of 142 launch and launch missiles of various types. The number of launches increased significantly over 2010, but the number of launch missiles and on-orbit missiles significantly increased. There were altogether 74 incidents of spacecraft incidents in foreign countries during the year, involving 58 spacecrafts. Among them, there were 15 spacecraft with Type I faults (major failures causing spacecraft total loss or mission failure), Type II failures (leading to spaceflight There are 25 spacecraft with some major loss of function or significant reduction of lifetime.