Chang'e-2Carriedsolar high energy particle detector The machine starts smoothly and works well.The solar high-energy particle detector, which is used to detect the space environment between the earth and the moon, is one of the seven scientific instruments carried by Chang'e-2, and is also the first scientific instrument opened during Chang'e-2's lunar flight.
Chang'e-2The flight to the moon takes about 112 hours, during which 2-3 orbit corrections will be made.When the satellite reaches a specific position near the moon, it will implement the first lunar braking, and enter the lunar elliptical orbit with a period of 12 hours and 100 kilometers near the lunar point.After two times of braking at the near moon point, we entered the 100 km high polar circle orbit.After completing the in orbit test and technical verification, Chang'e-2 satellite will enter the 100km × 15km elliptical orbit around the moon to take picturesChang'e-3The image of the lunar rainbow bay pre selected landing area, and the rapid orbit determination and other related technologies were verified.After 1-2 days, the satellite returned to 100 km orbit to carry out scientific exploration mission.
In addition, the Voice of China's CCTV News reported that at about 3:39 a.m. yesterday, after a series of posture adjustments,Chang'e-2 satelliteTake its first photo with a surveillance camera, that is, the image of the earth in the "Earth Moon Image".At 8:49 yesterday, with the return of the first group of satellite data, this image of the earth has also been returned and will be released shortly.
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Exploring the Moon is closely related to people's life
The moon is 380000 kilometers away from us.Why do we spend so much effort to explore the moon?In addition to scientific significance, what is the relationship between the lunar exploration project and the daily life of ordinary people?
Experts from China Aerospace Science and Technology Group said that the lunar exploration project is actually closely related to our lives.The United States leads the world in information, biology, new materials and other high technologies, most of which come from the digestion, optimization and secondary development of "Apollo" engineering technology.The progress of basic science and high and new technology driven by China's lunar exploration project will also play a role in pulling and promoting economic development.
At the same time, the unique energy and mineral resources on the moon are also important supplements and reserves to the earth's resources.Helium-3, the isotope of helium, can release huge energy in nuclear fusion reaction, and hardly produce radioactive pollution. It is considered to be the perfect energy for human society in the 21st century.There is a large amount of helium-3 on the moon. It is estimated that the helium-3 stored on the moon is about 1 million to 5 million tons, which can be used by humans for more than 10000 years.
