/view/32160.htmChang'e-1 was successfully launched at 18:05:00 on October 24, 2007!

The launch was confirmed to be successful at 19:15 on October 24, 2007!

Chang'e-1 completed its first orbit change at 17:55 on October 25, 2007. It is my country's first artificial satellite orbiting the moon.

Named after the ancient Chinese mythological figure Chang'e, it was launched from the Xichang Satellite Launch Center at around 18:05 (UTC+8:00) on October 24, 2007. The entire "moon flight" process takes about 8-9 days.

The total weight of the satellite is expected to be about 2,350 kilograms, and its lifespan is greater than one year.

The main detection goals of the satellite are: to obtain three-dimensional images of the lunar surface; to analyze the content of useful elements and the distribution characteristics of material types on the lunar surface; to detect the thickness of the lunar soil and the space environment from the earth to the moon.

Overview The "Chang'e-1" satellite was developed by the China Academy of Space Technology and named after the ancient Chinese mythological figure Chang'e. It is mainly used to obtain three-dimensional images of the lunar surface, analyze the distribution characteristics of relevant material elements on the lunar surface, detect the thickness of the lunar soil, and detect the earth's surface.

Moon space environment, etc.

At present, this satellite has entered the preliminary prototype development stage.

At this stage, there will be two prototype satellites, the Electric Star and the Structural Star, to undertake satellite testing.

According to aerospace experts, the test of the electric star is mainly used for comprehensive testing of some equipment with electronic performance. The test of the structural star is mainly to assess the rationality of the structural design and the rationality of the temperature control design on the entire star.

At present, the structural manufacturing of these two prototype satellites has been completed, and the entire satellite testing will begin before the end of the year.

On this basis, the development of the "Chang'e-1" prototype satellite will be carried out.

According to reports, the entire preliminary prototype testing phase will last until June next year, and will then enter the development phase of the satellite prototype.

In addition, the Long March-3A rocket responsible for satellite launch tasks has now been put into production.

In order to ensure the completion of the lunar exploration mission, scientific researchers conducted 41 reliability design tasks on the Changsanjia rocket to improve its carrying reliability.

Technical difficulties 1. Orbit design and flight program control issues 2. Three-vector control issue for satellite attitude control 3. Satellite environmental adaptability design 4. Long-distance measurement, control and communication issues The "Chang'e-1" satellite is developed by the China Academy of Space Technology

, mainly used to obtain three-dimensional images of the lunar surface, analyze the distribution characteristics of relevant material elements on the lunar surface, detect the thickness of the lunar soil, and detect the Earth-lunar space environment.

The "Chang'e-1" lunar exploration satellite consists of two parts: the satellite platform and the payload.

The satellite platform was developed using Dongfanghong-3 satellite platform technology, and scientific researchers made adaptive modifications to eight subsystems including structure, propulsion, power supply, measurement and control, and data transmission.

The payload includes scientific detection instruments such as CCD stereo cameras, imaging spectrometers, solar cosmic ray monitors and low-energy particle detectors.

The "Chang'e-1" lunar exploration satellite will be launched from the Xichang Satellite Launch Center in October 2007 by the "Long March 3A" carrier rocket.

After the satellite is launched, it will take 8 to 9 days to complete the phase-modulation orbit segment, the Earth-moon transfer orbit segment and the lunar orbit segment to perform scientific exploration missions.

It will complete four major scientific tasks. The primary purpose is to "portrait" the moon, that is, to obtain lunar surface images and three-dimensional images through various means.

In addition, it is also necessary to analyze the distribution characteristics of the content of useful elements and material types on the lunar surface, and to detect the thickness of the lunar soil and the cislunar space environment.

According to experts, the Chang'e-1 satellite is two meters square. After the solar wings are unfolded, it can be up to 18 meters long. It has a take-off weight of 2,350 kilograms. It will take 10-12 days for the satellite to fly near the moon.

Chang'e-1 is designed to have a lifespan of one year and will not return to Earth after its mission.

"Chang'e-1" will carry 31 songs. After the launch is successful, the songs transmitted by the satellite can be received through TV and radio, but no download service is provided.