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Source caption: Successfully “braking” the Chang’e-5 into orbit around the moon
Image source: Center for Space Engineering and Lunar Exploration of the National Space Administration.
The reporter learned from the National Space Administration last night (28) that at 8:58 p.m. Beijing time yesterday, the Chang’e-5 probe flew to the moon for approximately 112 hours and successfully fired a 3000 N engine. at a distance of about 400 kilometers from the moon. After about 17 minutes, the engine shuts down normally. According to monitoring of real-time telemetry data, the Chang’e-5 probe has stopped normally in recent months and has successfully entered orbit around the moon.
According to the National Space Administration, braking near the moon is one of the key orbital controls during the lunar probe’s flight. As the high-speed probe approaches the moon, it applies a “brake” brake to make the probe’s relative velocity less than the moon’s escape velocity so that it is captured by the moon’s gravity. .
After completing braking near the moon, the Chang’e-5 probe entered the circumlunar phase of flight. In orbit around the moon, the probe will adjust the height and inclination of the orbit around the moon, and the lander and ascendant will separate from the orbiter and return assembly. After separation, the lander-ascendant combination is expected to deorbit and change orbit to prepare for the subsequent soft landing on the lunar surface. After landing, the probe will carry out tasks such as automatic sampling of the lunar surface as planned. At the same time, the orbiter and returner combination will continue to fly around the moon, awaiting the return of the lunar-soil-equipped ascendant.
The Chang’e-5 probe was developed by the Fifth Academy of the China Aerospace Science and Technology Corporation, and is one of the most complex spacecraft systems developed by China so far. The complete probe consists of an orbiter, a return, a lander, and an ascendant, and includes 15 subsystems. After the successful launch in the early morning of November 24, the probe is expected to return to Earth after collecting lunar samples after 11 phases of flight and working for more than 20 days.Reporter Zhang Hang, Correspondent Duan Xun
