Chang'e-6 has completed the lunar treasure hunt! Return precious "photos" and set off home with "local" specialties
2024-06-04
According to the National Space Administration, at 7:38 am on June 4th, the Chang'e-6 spacecraft carried a lunar sample and took off from the far side of the moon. After about 6 minutes of operation with a 3000N engine, it successfully launched the spacecraft into the planned lunar orbit. It is understood that from June 2nd to 3rd, Chang'e-6 successfully completed intelligent rapid sampling in the Antarctic Aitken Basin on the far side of the moon, and packaged and stored precious samples on the far side of the moon in the storage device carried by the ascent according to the predetermined form. During the sampling and packaging process, researchers in the ground laboratory simulate and sample the geographic model of the sampling area based on the detector data transmitted by the Queqiao 2 relay satellite, providing important support for sampling decision-making and various operations. Intelligent sampling is one of the core and key links of the Chang'e-6 mission. The detector has withstood the high temperature test on the back of the moon and collected lunar samples through two methods: drilling with drilling tools and mechanical arm surface sampling, achieving multi-point and diversified automatic sampling. The landing camera, panoramic camera, lunar soil structure detector, lunar mineral spectrum analyzer and other payloads equipped on the Chang'e-6 lander have been turned on normally, and scientific exploration has been carried out according to plan. They have played an important role in scientific exploration tasks such as lunar surface morphology and mineral composition detection and research, and lunar shallow structure detection. Before drilling and sampling with the detector, the lunar soil structure detector analyzed and judged the underground lunar soil structure in the sampling area, providing data reference for sampling. On June 4th, the National Space Administration released a series of image images taken by the Chang'e-6 lander landing on the far side of the moon, including images of the landing area taken by the landing camera during the landing process and images of the landing site taken by the panoramic camera. The relevant image data is transmitted back through the Queqiao 2 relay satellite, and the image images are processed by the ground application system. Image 1 captured by the landing camera of Chang'e-6 lander. This image was taken when the landing camera was first turned on. The image shows multiple circular craters with a diameter of more than ten kilometers distributed in the lower and right parts of the lunar back area. The upper and middle parts of the lunar back area captured are dark basalt distribution areas. Image 2 captured by the landing camera of Chang'e-6 lander. This image was captured by a landing camera during the landing process, and the image shows a large number of bright circular craters distributed in the lunar back area. Image 3 captured by the landing camera of Chang'e-6 lander. This image was taken by a landing camera after a safe landing of the lander. The image shows that the bottom of the lander is relatively flat, with a small amount of bright colored stones distributed. The panoramic camera of Chang'e-6 lander captured images. This image is made by mosaic the color images captured by the panoramic camera on the north side of the lunar surface before sampling on the Chang'e-6 spacecraft. Above the image is Chaffey Crater to the north of the landing site, and below the image are the landing legs and the lunar soil that was impacted and compressed during landing. It is reported that international payloads such as the European Space Agency lunar surface negative ion analyzer and the French lunar radon detector carried by the Chang'e-6 lander are working normally and have carried out corresponding scientific exploration missions. Among them, the French lunar radon detector has been turned on during the Earth Moon transfer, circumlunar phase, and lunar surface working phase; The European Space Agency's lunar surface negative ion analyzer was powered on during the lunar working phase. The Italian laser corner reflector installed on top of the lander serves as a position control point on the far side of the moon for distance measurement. After completing the survey, the five-star red flag carried by the Chang'e-6 lander was successfully deployed on the far side of the moon. This is the first time China has independently and dynamically displayed its national flag on the far side of the moon. The national flag is made of new composite materials and special techniques. Due to the different positions of the moon landing, the Chang'e-6 national flag display system has undergone adaptive improvements on the basis of the Chang'e-5 mission. Compared to ground takeoff, the Chang'e-6 ascent does not have a fixed launch tower system, but instead uses the lander as a temporary tower. Compared with the lunar takeoff of Chang'e-5, Chang'e-6 takes off from the far side of the moon and cannot directly receive ground measurement and control support. Instead, it needs to use its own special sensors to achieve autonomous positioning and attitude determination with the assistance of the Magpie Bridge 2 relay satellite, making the implementation of the project more difficult. After the ignition and takeoff of the Chang'e-6 spacecraft, it went through three stages: vertical ascent, attitude adjustment, and orbital launch, and successfully entered the planned lunar orbit. Subsequently, the ascent will rendezvous and dock with a combination of orbiters and retrievers waiting in the lunar orbit, and transfer lunar samples to the retriever; The combination of orbiter and retriever will fly around the moon, waiting for the appropriate return time for lunar to ground transfer. Near Earth, the retriever will carry lunar samples and re-enter the atmosphere, with plans to land at the landing site in Siziwang Banner, Inner Mongolia. On May 3rd, the Chang'e-6 probe was launched into space, embarking on a journey to the moon. After experiencing near moon braking, separation of lander and ascent combinations, and separation of orbiter and return combinations, it successfully landed in the pre selected landing area of the South Pole Aitken Basin on the far side of the moon on June 2nd. (Lai Xin She)
Edit：Liling Responsible editor：Jia Jia
Source：china.com.cn
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