China is counting down to the launch of its first lunar probe which is expected to take place at about 6:05 p.m. on Wednesday from the Xichang Satellite Launch Center in southwestern Sichuan Province.
Space center experts were worried earlier in the day when Xichang experienced an unexpected torrential rainfall from about 4:05 a.m. till 7:10 a.m. on Wednesday, but they were able to breathe a sigh of relief when the weather cleared.
Both the national and local meteorological observatory forecast cloudy weather for the launch site on Wednesday afternoon. However they said they believed it would not affect the launch mission, which was echoed by technological staff at the site.
Local villagers within a radius of 2.5 km of the launch site and under the trajectory of the carrier have been told to move to safe areas two hours prior to the anticipated launch.
Tourists have been charged 800 yuan (105 U.S. dollars) to witness the launch of China's first lunar satellite. A local travel agency has said that the two observation platforms are capable of holding 2,000 and 500 people respectively, but it is not known how many people paid for the chance.
The moon orbiter, Chang'e-1, named after a legendary Chinese goddess who flew to the moon, and the carrier Long March 3A have passed all pre-launch tests.
The lunar probe is expected to enter earth-moon transfer orbit on Oct. 31 and arrive in the moon's orbit on Nov. 5.
The satellite will relay the first picture of the moon in late November and will then continue scientific explorations of the moon for a year.
The orbiter will carry out a series of projects including acquiring 3-D images and analyzing the distribution of elements on the moon's surface.
China hopes to become the 17th nation to join the International Space Station (ISS) project, Vice Minister of Science and Technology Li Xueyong said last week.
"The Chinese government has been pursuing a policy of peaceful use of airspace," Li said.
The satellite launch will mark the first step of China's three-stage moon mission, which will lead to a moon landing and launch of a moon rover around 2012.
In the third phase, another rover will land on the moon and return to earth with lunar soil and stone samples for scientific research around 2017.
China carried out its maiden piloted space flight in October 2003, making it only the third country in the world after the Soviet Union and the United States to have sent men into space. In October 2005, China completed its second manned space flight, with two astronauts on board.
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