For example, the same group of microsatellites could be initially widely spaced to provide worldwide radar coverage, and then within hours moved closer together to conduct finetoothed searches of smaller areas.

• 例如，一组微型卫星原本分散分布以提供全球雷达监测，但在几个小时之内就可以靠拢到一起，对小区域进行更细致的测绘。