The moon surface ignition of the Chang'e-5 ascender successfully achieved the first takeoff of an extraterrestrial body in my country
Xinhua News Agency, Beijing, December 3 (Reporter Hu Zhe) The reporter learned from the National Space Administration that at 23:10 on December 3, the Chang'e-5 ascender ignited on the lunar surface. After the 3000N engine was working for about 6 minutes, it will carry it smoothly. The ascender of the lunar soil was sent to the scheduled orbit around the moon, successfully achieving the first takeoff of an extraterrestrial body in my country.
According to experts, unlike ground take-off, the Chang'e-5 ascender does not have a mature launch tower system for lunar take-off. The lander is equivalent to the “temporary tower” of the ascender. There is a difference between the initial reference of the ascender and the attitude of the platform. Problems such as the limited space for engine plume diversion, and the difference between the earth and the moon environment; in addition, because there is no navigation constellation on the moon, after the ascender takes off, it needs to use its own special sensors to achieve autonomous positioning, Stance.
Before taking off, the upper assembly is used to realize the deployment of the lunar flag and the unlocking and separation of the riser and the lander.
The launch of the national flag is my country’s first "independent display" of the national flag on the surface of the moon. According to the returned images, the five-star red flag is shining in the sun, and the "China Red" is particularly bright.
After igniting takeoff, the ascender undergoes three stages of vertical ascent, attitude adjustment and orbit injection, and enters the scheduled orbit around the moon.
Subsequently, the ascender will rendezvous and dock with the orbital assembly waiting around the moon, and transfer the lunar sample to the returner, which will wait for a suitable lunar-earth entrance window to be ready to return to the earth.
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