韩国国防部正在推进将共五颗军事侦察卫星发射升空的“425项目”，周六发射的是该项目的第三颗卫星。第一颗卫星搭载高分辨率数字光电（EO）和红外（IR）设备，于2023年12月发射升空后，今年8月起执行任务；第二颗卫星搭载合成孔径雷达（SAR），于今年4月发射升空，正在进行调整和测试，计划于2025年2月前后正式执行任务。第三颗军事侦察卫星也搭载合成孔径雷达。 据悉，若五颗军事侦察卫星全部投入运行，...
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