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美国航天局喷气推进实验室22日说,由于修复方案取得成效,“旅行者1号”探测器日前再次发回有关其工程系统健康状态的可读数据。
“旅行者1号”去年11月14日停止向地球发送可读的科学和工程数据,但仍在接收指令,并且在其他方面运行正常。经检查发现,通信故障与该探测器搭载的3台被称为“飞行数据子系统(FDS)”的计算机中的一台有关。
由于无法修复损坏的芯片,工程团队将受影响代码分成几部分,分别存储在FDS的不同位置,并确保存储于不同位置的代码仍作为一个整体运行,此外还对引用代码位置的指令进行了更新。团队首先对负责打包“旅行者1号”工程数据的代码进行修复。4月18日,团队将相关代码发送到FDS内存的新位置。
任务飞行团队于20日接收到探测器反馈,使团队能够时隔5个月再次了解探测器运行状况。接下来的几周,团队将尝试使探测器能再次发回科学数据。
“旅行者1号”是仅有的两个已离开太阳系进入星际空间飞行的人造航天器之一,目前距离地球约240亿公里。
新华社NASA



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美国航天局喷气推进实验室22日说,由于修复方案取得成效,“旅行者1号”探测器日前再次发回有关其工程系统健康状态的可读数据。
“旅行者1号”去年11月14日停止向地球发送可读的科学和工程数据,但仍在接收指令,并且在其他方面运行正常。经检查发现,通信故障与该探测器搭载的3台被称为“飞行数据子系统(FDS)”的计算机中的一台有关。
由于无法修复损坏的芯片,工程团队将受影响代码分成几部分,分别存储在FDS的不同位置,并确保存储于不同位置的代码仍作为一个整体运行,此外还对引用代码位置的指令进行了更新。团队首先对负责打包“旅行者1号”工程数据的代码进行修复。4月18日,团队将相关代码发送到FDS内存的新位置。
任务飞行团队于20日接收到探测器反馈,使团队能够时隔5个月再次了解探测器运行状况。接下来的几周,团队将尝试使探测器能再次发回科学数据。
“旅行者1号”是仅有的两个已离开太阳系进入星际空间飞行的人造航天器之一,目前距离地球约240亿公里。
新华社NASA

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