2021-06-11

From Earth to Mars: Recalling China’s Mark on the Red Planet

By yqqlm yqqlm

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From Earth to Mars: Recalling China’s Mark on the Red Planet

From Earth to Mars: Recalling China’s Mark on the Red Planet(1)

China Aerospace Science and Technology Group Co., Ltd. Party Secretary and Chairman Wu Yansheng attended the ceremony.

my country’s Tianwen-1 probe and the Long March-5 carrier rocket used for its launch were developed by the Aerospace Science and Technology Group.

The panoramic view of the landing site is made by the navigation terrain camera on the mast of the rover to take a 360° ring shot, after correction and mosaic stitching, when the rover has not left the landing platform.

From Earth to Mars: Recalling China’s Mark on the Red Planet(2)

Image display, The terrain near the landing site is flat, the Martian horizon can be seen in the distance, and the stone abundance and size are consistent with expectations, indicating that the autonomous selection of the landing site and the implementation of hovering obstacle avoidance are effective.

The topographic and geomorphological map of Mars is the first topographic and geomorphic image taken by the navigation terrain camera after the rover reaches the surface of Mars.

From Earth to Mars: Recalling China’s Mark on the Red Planet(3)

Image display, The near surface is relatively flat, with stones of different sizes distributed, with smooth edges, lighter colors, and semi-buried. There is an annular pit at the far end. The edges of the annular pit are distributed with darker, angular stones, and farther away. There are several sand dunes everywhere.

The “Chinese Imprint” map is an image of the landing platform taken by the Mars rover traveling about 6 meters southeast of the landing platform 60°.

From Earth to Mars: Recalling China’s Mark on the Red Planet(4)

Image display, The landing platform is shining, the national flag is bright red and square, and the surface features are rich in details.

The picture of “taking a tour” shows the rover traveling about 10 meters south of the landing platform, releasing the separate camera installed at the bottom of the vehicle, and then retreating to the vicinity of the landing platform.

From Earth to Mars: Recalling China’s Mark on the Red Planet(5)

Separate camera shooting The moving process of the rover and the photo of the rover and the landing platform are shown. The image is transmitted to the rover through wireless signals, and then relayed back to the ground by the rover through the orbiter.

my country’s first Mars exploration mission was fully launched in 2013, and the project was approved in January 2016. On July 23, 2020, the Tianwen 1 probe was successfully launched in Wenchang, Hainan. After the phases of ground fire transfer, Mars capture, Mars mooring, off-orbit landing and scientific exploration, the engineering mission was carried out smoothly as planned, as of June 11 , The orbiter is in good condition in the relay orbit, and the “Zhu Rong” rover has been working on the surface of Mars for 28 Martian days.

(Click on the picture to see the detailed report)

The Long March 5 Yao-4 launch vehicle lifted the Tianwen-1 probe to the launch area vertically.

From Earth to Mars: Recalling China’s Mark on the Red Planet(6)

Long Five Four rockets successfully launched the Tianwen-1 probe.

From Earth to Mars: Recalling China’s Mark on the Red Planet(7)

Tianwenyi The spacecraft probe looked back at the earth about 1.2 million kilometers away from the earth, used optical navigation sensors to image the earth and the moon, and obtained a group photo of the earth and the moon. After that, the probe broke away from the gravitational influence of the Earth, entered the interplanetary transfer orbit, and flew more than 1.5 million kilometers away from the Earth.

From Earth to Mars: Recalling China’s Mark on the Red Planet(8)

Tianwenyi The probe completed the first midway correction of the orbit. This is the first space ignition of a 3000N orbit-controlled engine, verifying the actual performance of the engine in orbit. Before the orbit correction, the probe was about 3 million kilometers away from the earth.

From Earth to Mars: Recalling China’s Mark on the Red Planet(9)

22:20 Beginning with the division, the Martian magnetometer, mineral spectrum analyzer, high-resolution camera, and medium-resolution camera on the Tianwen-1 probe orbiter completed self-checks in turn to confirm that the equipment is in normal condition. By 23:20, the flight distance was about 8.23 ​​million kilometers.

From Earth to Mars: Recalling China’s Mark on the Red Planet(10)

10:8 The Tianwen-1 probe has a flight distance of 100 million kilometers and is about 10.75 million kilometers away from the earth.

From Earth to Mars: Recalling China’s Mark on the Red Planet(11)

23, Four 120N engines of the Tianwen No. 1 detector were ignited at the same time for 20 seconds, and the second midway correction of the orbit was successfully completed, and the actual performance of the 120N engine was verified on orbit. The probe is about 19 million kilometers from the earth, and the flight distance is about 160 million kilometers.

From Earth to Mars: Recalling China’s Mark on the Red Planet(12)

my country’s release day Q1 probe first “self-photographed” in deep space. As of the early morning of that day, the probe had flown 188 million kilometers and was 24.1 million kilometers away from the earth.

From Earth to Mars: Recalling China’s Mark on the Red Planet(13)

Tianwenyi The main engine of the No. Detector ignited for more than 480 seconds, successfully completing the deep space maneuver. The probe is about 29.4 million kilometers from the earth.

From Earth to Mars: Recalling China’s Mark on the Red Planet(14)

Tianwenyi 8 sets of 25N engines were ignited at the same time, and the third midway correction of the orbit was successfully completed, and the actual performance of the 25N engine was calibrated on orbit. The probe is about 44 million kilometers from the earth, and the flight distance is about 256 million kilometers.

From Earth to Mars: Recalling China’s Mark on the Red Planet(15)

Tianwenyi No. Detector’s engine ignited, and the fourth orbit midway correction of the ground fire transfer section was successfully completed. The probe is about 184 million kilometers away from the Earth, about 1.1 million kilometers away from Mars, and has a flight range of about 465 million kilometers. On the same day, my country released the first Martian image obtained by the Tianwen-1 probe at a distance of about 2.2 million kilometers from Mars.

From Earth to Mars: Recalling China’s Mark on the Red Planet(16)

Tianwenyi The probe No. “brakes” successfully and starts flying around the fire.

From Earth to Mars: Recalling China’s Mark on the Red Planet(17)

Tianwenyi The probe successfully carried out a plane maneuver to capture the orbit of the distant fire point and adjusted its orbit to a circular fire orbit passing through the poles of Mars.

From Earth to Mars: Recalling China’s Mark on the Red Planet(18)

Tianwenyi The probe successfully implemented the third near-fire brake and entered the Mars mooring orbit.

From Earth to Mars: Recalling China’s Mark on the Red Planet(19)

Tianwenyi The sideways images of Mars in the southern and northern hemispheres taken by the spacecraft rover were released.

From Earth to Mars: Recalling China’s Mark on the Red Planet(20)

Tianwenyi The probe successfully landed in the pre-selected landing area in the southern part of the Martian Utopia Plain, and my country’s first Mars exploration mission landed on Mars successfully.

From Earth to Mars: Recalling China’s Mark on the Red Planet(21)

Tianwenyi During the landing process of the probe No. 3, the two vehicles were separated and the images of the falling fire were released.

From Earth to Mars: Recalling China’s Mark on the Red Planet(22)

“Zhu Ronghao “The rover has safely left the landing platform, reached the surface of Mars, and began to patrol and explore.

From Earth to Mars: Recalling China’s Mark on the Red Planet(23)

Tianwenyi The high-resolution image of the landing area of ​​the mission was released, and the conditions of the Zhongtianwen-1 landing platform, the “Zhurong” rover and the surrounding area are clearly visible.

From Earth to Mars: Recalling China’s Mark on the Red Planet(24)

Tianwenyi With the release of the first batch of scientific image maps of the probe landing on Mars, my country’s first Mars exploration mission was a complete success.

From Earth to Mars: Recalling China’s Mark on the Red Planet(5)