File:Viking Pre-Launch Test Flight - GPN-2003-00047.jpg
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![File:Viking Pre-Launch Test Flight - GPN-2003-00047.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Viking_Pre-Launch_Test_Flight_-_GPN-2003-00047.jpg/480px-Viking_Pre-Launch_Test_Flight_-_GPN-2003-00047.jpg?20090410002954)
本预览的尺寸:480 × 599像素。 其他分辨率:192 × 240像素 | 385 × 480像素 | 616 × 768像素 | 821 × 1,024像素 | 2,360 × 2,944像素。
原始文件 (2,360 × 2,944像素,文件大小:8.27 MB,MIME类型:image/jpeg)
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[编辑]描述Viking Pre-Launch Test Flight - GPN-2003-00047.jpg |
English: The Titan booster is a two-stage liquid-fueled rocket, with two additional large, solid-propellant rockets attached. It is a member of the Titan family that was used in NASA's Gemini program. The Centaur is a liquid oxygen- liquid hydrogen, high- energy upper stage used on Surveyor flights to the Moon and on Mariner flights to Mars. At liftoff, the solid rockets provide 9.61 million newtons (2.16 million pounds) of thrust. When the solids burn out, the first stage of the Titan booster ignites, and followed by the second-stage ignition as the first stage shuts down. The Centaur ignites on second stage shutdown to inject the spacecraft into orbit. Then after a 30-minute coast around the Earth into position for re-start, the Centaur re-ignites to propel Viking on its Mars trajectory. Once this maneuver is completed the spacecraft separates from the Centaur, which subsequently is deflected away from the flight path to prevent its impact on the surface of Mars. Shortly after separating from the Centaur, the orbiter portion of the combined orbiter-lander spacecraft orients and stabilizes the spacecraft by using the Sun and a very bright star in the southern sky, Canopus, for celestial reference. |
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来源 | Great Images in NASA Description |
作者 | NASA |
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本图像或视频收录于美国国家航空航天局 (NASA)肯尼迪太空中心(Kennedy Space Center),其照片编号是: GPN-2003-00047 以及Alternate ID: Titan-Centaur 此标签不表示文件的著作权状态。任何文件在附有此标签的同時还需要一个有效的著作权标签。请参阅许可协议说明页面以了解更多信息。 其他语言:
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[编辑]Public domainPublic domainfalsefalse |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
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当前 | 2009年4月10日 (五) 00:29 | ![]() | 2,360 × 2,944(8.27 MB) | BotMultichillT(留言 | 贡献) | {{Information |Description={{en|1=The Titan booster is a two-stage liquid-fueled rocket, with twoadditional large, solid-propellant rockets attached. It is amember of the Titan family that was used in NASA's Geminiprogram. The Centaur is a liquid oxygen- |
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