The reporter learned from the China National Space Administration that at 7:38 on June 4, the Chang'e-6 ascender took off from the far side of the moon with lunar samples, and the 3000N engine worked for about 6 minutes before successfully sending the ascender into the scheduled orbit around the moon.
From June 2 to 3, Chang'e-6 successfully completed intelligent rapid sampling in the South Pole-Aitken Basin on the far side of the Moon, and sealed the precious samples on the far side of the Moon in the storage device carried by the ascender in a predetermined form. In the process of sampling and encapsulation, researchers simulated and simulated the geographical model of the sampling area in the ground laboratory according to the detector data transmitted back by the Queqiao-2 relay satellite, which provided important support for sampling decision-making and operation of each link.
Intelligent sampling is one of the core and key links of the Chang'e-6 mission, and the probe withstood the test of high temperature on the far side of the moon, and collected lunar samples through two methods: drilling with drilling tools and surface extraction with robotic arms, realizing multi-point and diversified automatic sampling.
The Chang'e-6 lander is equipped with a variety of payloads such as landing camera, panoramic camera, lunar soil structure detector, and lunar mineral spectrum analyzer, and has carried out scientific exploration as planned, playing an important role in scientific exploration tasks such as the detection and study of lunar surface morphology and mineral composition, and the exploration of the shallow structure of the moon. Before the probe drilled and sampled, the lunar soil structure detector analyzed and judged the underground lunar soil structure in the sampling area, which provided a data reference for sampling.
The Chang'e-6 lander carried international payloads such as the ESA Lunar Negative Ion Analyzer and the French Lunar Radon Detector are working normally and have carried out corresponding scientific exploration missions. Among them, the French lunar radon gas detector has been started up in the Earth-Moon transfer, the circumlunar phase and the lunar surface working section. ESA's Lunar Negative Ion Analyzer was started up in the lunar working section. An Italian laser corner reflector mounted on top of the lander became a position control point on the far side of the moon that could be used for distance measurement.
After the completion of the table capture, the five-star red flag carried by the Chang'e-6 lander was successfully unfurled on the far side of the moon. This is the first time that China has independently displayed its national flag on the far side of the moon. The flag is made of new composite materials and special processes. Due to the different positions of the moon, the Chang'e-6 national flag display system has been adapted and improved on the basis of the Chang'e-5 mission.
In contrast to ground takeoff, the Chang'e-6 ascent vehicle does not have a fixed launch tower system, but instead uses the lander as a "temporary tower". Compared with Chang'e-5's take-off from the lunar surface, Chang'e-6 takes off from the far side of the moon and cannot be directly supported by ground TT&C, but needs to be assisted by the Queqiao-2 relay satellite to achieve autonomous positioning and attitude determination with the help of its own special sensor, which is more difficult to implement. After the Chang'e-6 ascender ignited and took off, it went through three stages: vertical ascent, attitude adjustment and orbit injection, and successfully entered the scheduled orbit around the moon.
Subsequently, the ascender will rendezvous and dock with the orbiter and returner assembly waiting in orbit around the moon, and transfer lunar samples to the returner; The orbiter and returner will fly around the moon and wait for a suitable return time for the moon-to-earth transfer, and the returner will carry lunar samples to re-enter the atmosphere near the Earth and plan to land at the Siziwangqi landing site in Inner Mongolia.
On May 3, the Chang'e-6 probe was launched to start its journey to the moon, and successfully landed in the South Pole-Aitken Basin on the far side of the moon on June 2 after near-moon braking, the separation of the lander and ascender and the orbiter and returner assembly.
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Source of this article: CCTV News WeChat public account