任务档案 · MISSION
Ranger 4
美国空军 · Atlas LV-3 Agena B · Launch Complex 12
成功
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任务简介
Ranger 4 是一艘设计用于软着陆月球表面的航天器。由于其中央计算机中的计时器故障，其太阳能电池板从未展开，且其太阳和地球捕获系统也未启动。在飞行64小时后，它于4月26日撞击了月球背面。
原文
Ranger 4 was a spacecraft designed to softly impact the lunar surface. Its solar panels were never extended and its sun and earth acquisition system was not initiated due to a failure of a timer in its central computer. It impacted the far side of the Moon on April 26 after 64 hours of flight.
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