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主题:【原创】嫦娥抽阿婆骡第一鞭 -- 方天化几

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家园 请仔细看看nasa的官方报告

再来说说丢失的到底记录什么的带子。

引用报告第一页的几段

What most people did not realize, however, is that the television footage they viewed was actually inferior to what ground station engineers saw as the raw footage arrived from the moon 250,000 miles away. While the public saw blurry, ghostlike images, the engineers working at NASA's tracking stations in California and Australia saw clear, crisp video on special television monitors capable of displaying the unconventional video. Although NASA engineers knew that the scan converter would degrade the original picture quality, they viewed it as an engineering trade-off. NASA wanted live television and the only way to provide it at the time was with scan-conversion technology, despite the degradation.

In the triumph of the day, no one at the tracking stations considered these differences and certainly the public was unaware. The engineers boxed the one-inch telemetry tapes wound onto 14-inch canister reels-which served no other purpose than to provide backup if the live relay failed-and shipped them to the Goddard Space Flight Center. From there, the tapes were sent to the Washington National Records Center (WRNC) in Suitland, Md.

The engineers never saw the back-up telemetry tapes again.

登月当天电视直播的图象是经过处理的,比nasa自己监控时看到的图象质量要低,这是为了满足电视直播的要求。作为电视直播的备份,nasa的工程师自己也录了一份,之后这些带子被送往Goddard Space Flight Center。但再也没有人看到过这些记录带。

这些记录带记录的不是监控数据,而是直播失败时可以拿来录播的视频。

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