It blew up over the Nubian Desert, in Sudan, and no one was injured. But this incident showed that a properly organised early-warning system might pay dividends if ground zero turned out to be a populated area.

这颗小行星在苏丹的努比亚沙漠上空爆炸，无人受伤。但这个事件说明，如果地面零点（注：军事术语，指爆炸在地面的投影点）是居住区域的话，组织恰当的预警系统就能显示出它的价值了。