Japan planned its spy satellite program following North Korea's 1998 launch of a ballistic missile that flew over Japan and landed in the Pacific Ocean.
Japan planned its spy satellite program following North Korea's 1998 launch of a ballistic missile that flew over Japan and landed in the Pacific Ocean.
一位日本内阁卫星情报中心的官员说，加上现在在轨的两颗相似性能的卫星，日本政府有能力每天一次的监视地球上的任何地方。