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“嫦娥二号”发射圆满成功
作者：maisie  文章来源：本站原创  点击数  更新时间：2010-10-8 16:24:19  文章录入：maisie  责任编辑：maisie

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“嫦娥二号”发射圆满成功[文章来自:考试与评价 http://www.trgroup.com.cn/te/ +?|6#$|9)�A"(-2a.v]
China's 2nd lunar probe Chang'e-2 blasts off[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ M�iH^R@6 [3Z6JQFroG]

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西昌卫星发射中心10月1日宣布，“嫦娥二号”卫星准确入轨，发射圆满成功。

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“嫦娥二号”卫星是中国自主研制的第2颗月球探测卫星，继2007年“嫦娥一号”一举实现中华民族千年奔月梦想之后，“嫦娥二号”的成功发射，标志着中国探月工程又向前迈出重要一步。

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本次发射是“长征三号丙”运载火箭首次担负月球探测卫星发射任务，也是中国“长征”系列运载火箭第131次航天飞行。

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China launched its second unmanned lunar probe, Chang'e-2 on Friday, inaugurating the second phase of a three-step moon mission, which will culminate in a soft-landing on the moon.

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At 6:59:57 pm, the satellite blasted off on a Long March 3C carrier rocket from No 2 launch tower at the Xichang Satellite Launch Center in southwest China's Sichuan Province.

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"Chang'e-2 lays foundation for the soft-landing on the moon and further exploration of outer space," said Wu Weiren, chief designer of China's lunar orbiter project.

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Chang'e-2 entered the orbit with a perigee of 200 kilometers and apogee of 380,000 kilometers as scheduled. There it separated from the carrier rocket.

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It was the first time that a Chinese lunar probe directly entered the earth-moon transfer orbit without orbiting the earth first.

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"It is a major breakthrough of the rocket design, as it saves energy used by the satellite and speeds up the journey to the lunar orbit," said Pang Zhihao, a researcher with the China Academy of Space Technology.

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The lunar satellite is expected to take about 112 hours, or almost five days, to arrive at its lunar orbit, faster than the 12 days taken by the Chang'e-1 three years ago.

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"It travels faster and closer to the moon, and it will capture clear pictures," Wu said.

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Chang'e-2, named after a legendary Chinese goddess of moon, will orbit 100 kilometers above the moon, compared with 200 kilometers for Chang'e-1.

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Total expenditure for the Chang'e-2 mission is about 900 million yuan ($134.33 million).

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China launched its first lunar probe, Chang'e-1, in October 2007, marking a milestone in the country's space exploration.

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After orbiting for 494 days and intentionally crashing onto the lunar surface, Chang'e-1 sent back 1.37 terabytes of data, producing China's first complete moon picture. The data has been shared with other countries for free.

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China became the third country after Russia and the United States to send a person into space in 2003.

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Two more manned space missions followed with the most recent in 2008 involving China's first human space walk.

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