What is the economic significance of Chang e 1?

<> China has a total of five Chang'e spacecraft, and in 2004, China officially launched a lunar exploration project and named it "Chang'e Project". The Chang'e project is divided into three phases: "unmanned lunar exploration", "manned lunar landing" and "establishment of a lunar base". At 18:05 on October 24, 2007, Chang'e-1 was successfully launched, and after successfully completing various missions, it hit the moon in a controlled manner as planned in 2009.

At 18:57:59 on October 1, 2010, Chang'e-2 was successfully launched, and all the scheduled tasks have been successfully completed and exceeded. On September 19, 2012, Ouyang Ziyuan, chief scientist of the lunar exploration project, said that the lunar exploration project is carrying out the lunar surface survey mission of the Chang'e-3 satellite and the Yutu lunar rover. Chang'e-4 is the backup satellite of Chang'e-3.

The main scientific objectives of Chang'e-5 include the field investigation and analysis of the landing area, as well as the analysis and study of lunar samples after they are returned to Earth.

The Chang'e-3 mission is burdened with three major scientific missions, namely, the investigation of lunar surface morphology and geological structure; Investigation of the composition of monthly surface substances and available resources; Earth plasmaspheric exploration and moon-based optical astronomical observations.

Chang'e-3 is the first moon-based near-ultraviolet survey in the world, filling part of the gap in the international GALEX satellite survey in the low silver latitude region, and the moon-based optical telescope is also the only scientific instrument still working normally on Chang'e-3.

Another highlight of the Moon-based Optical Telescope is the discovery of a series of new astronomical phenomena in variable star research. For example, the discovery of a rare celestial body in the process of rapid material exchange evolution of binary stars, the discovery of a batch of samples in the process of slow material exchange evolution of binary stars, the discovery of a semi-contiguous dense binary star in a six-star system, and the discovery of the possibility that a near-binary star is generally present in a multi-star system.

Chang'e-Lixiao-3 discovered for the first time that the boundary of the Earth's plasma layer is raised under the influence of magnetospheric substorms.

Chinese scientists used the detection data of the four scientific instruments on the "Yutu" lunar rover to reveal the history of volcanic evolution in the lunar rain sea area for the first time in the world.

"Chang'e" is a poem written by the Tang Dynasty poet Li Shangyin.

The poetry of the whole poem:Sitting quietly alone in the mica screen, the light and shadow of the residual candle are deep. The long Milky Way has gradually receded, and the morning star has gradually faded and faded low.

Chang'e may regret that she stole the silver medicine of immortality back then, and now she is facing the blue sky and blue sea, tormenting her lonely heart night after night.

Brief analysis: This poem laments Chang'e's lonely scene in the moon and expresses the poet's feelings of self-injury. The first two sentences describe the environment indoors and outside the Muromori cherry blossom banquet respectively, rendering the empty and cold atmosphere, and expressing the protagonist's nostalgic emotions; The last two sentences are the feelings of the protagonist after a night of painful memories, expressing a sense of loneliness.

The whole poem is sentimental, rich in meaning, whimsical, and real and moving.

1. Running to the moon.

Coming in less time.

Chang'e-1"It took the satellite 10 days to complete the journey to explore the moon. with"Chang'e-1"Compared to this indirect way of satellites"Chang'e-2"The satellite journey has been shortened by half, and the entire journey to the moon takes only 5 days.

2. The launch vehicle enhances the horsepower.

It was revealed that the Long March-3C rocket for this mission was delivered compared with the previous one"Chang'e-1"The Long March-3A rocket in the sky mainly added two rocket boosters. While increasing the full horsepower, the direct flight has strict requirements for the accuracy and speed of the rocket's orbit entry.

3. Closer to the Moon.

In addition to the fact that the time to go to the moon has been shortened by half"Chang'e-2"Than"Chang'e-1"The distance to the Moon has become closer, and its lunar orbit has been reduced from 200 kilometers to 100 kilometers.

4. The carrying instrument is more advanced.

To this end,"Chang'e-2"The satellite is specially equipped with two important things that have been upgraded"**"- CCD camera and laser altimeter, with these two pieces of equipment"Chang'e-2"A safer and more suitable landing site will be selected for the lunar lander.

5. The technology is breakthrough.

Chang'e-2"The satellite has made breakthroughs in six key technologies, including Earth-Moon transfer orbit launch, X-band TT&C, near-moon acquisition, orbit control around the Moon, deep space TT&C communication, and high-resolution stereo camera development.

Compared with Chang'e-1, Chang'e-2 and Chang'e-1 have some differences and associations between missions in satellite data. Pang Zhihao, a researcher at the China Academy of Space Technology, said that the Chang'e-1 satellite weighs 1 tons, and the Chang'e-2 satellite weighs 130 kilograms, which is 130 kilograms, which is a ton. The weight gain is almost entirely fuel.

The Chang'e-1 satellite carried 8 detection equipment, and Chang'e-2 carried 7 equipment, and after the detection of the first phase of the project, the data of the imaging spectrum was sufficient, so the Chang'e-2 satellite removed it. From the ignition of the rocket to the launch of the satellite to establish a circular orbit around the moon, it takes about 330 hours for Chang'e-1 and 112 hours for Chang'e-2. Chang'e-1's orbit around the moon is 200 kilometers from the lunar surface, and Chang'e-2 will detect and image the lunar surface more clearly, reducing the distance from the lunar surface to 100 kilometers.

The time for Chang'e-1 to orbit the main orbit is 127 minutes, and the time for the Chang'e-2 satellite to orbit is reduced to 117 minutes. The resolution of the CCD camera on the Chang'e-1 satellite is 120 meters, and the resolution of the Chang'e-2 camera has been increased to 7 meters, and images with a resolution of 1 meter can be obtained when descending to 15 kilometers. The route of Chang'e-1 to the moon is divided into three stages: orbiting the earth, transferring the earth and the moon, and orbiting the moon, and the whole process requires the satellite engine to ignite 10 times, and the satellite can obtain sufficient speed to fly to the moon through 4 ignition and orbit change acceleration in the orbit around the earth, and aim at the moon through 3 ignition corrections in the earth-moon transfer section.

During the lunar orbit, it was decelerated by 3 near-moon braking cycles, captured by the moon, and established a working orbit. The Chang'e-2 satellite is built in two stages: Earth-Moon transfer and lunar orbit, and requires a total of 8 engine ignitions, including 3 mid-cycle ignition corrections, 3 near-moon braking, 1 ignition maneuver to an elliptical orbit of 15 kilometers near the moon, and 1 ignition acceleration to return to a 100-kilometer long orbit.

It's the same, but Chang'e-1 was not successfully launched, and Chang'e-2 was successfully launched!

Chang'e-2 is "two", and Chang'e-1 is "one".

Chang'e-1

It took one year after the launch to come back, and the Chang'e-2 came back half a year later, and they were all successfully launched, but although the Chang'e-2 returned to its family earlier than the Chang'e-1.

But the information obtained is more than that of "Chang'e-1"!

I hope my answer is helpful to you This is my own understanding It wasn't from somewhere else Oh hehe, it may not be complete, because my knowledge is limited, it's only the first year of junior high school, but the concentration is the essence!