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2022

#Magnesium lithium alloy # latest Mars image # latest selfie of zhurong#

A few days ago, the near fire point of the "tianwen-1" orbiter passed over the inspection area of the Mars rover again, and the 0.5-meter-resolution image map of the inspection area of the "zhurong" was taken. In the map, the traveling route of the "zhurong" Mars rover was clearly discernible. At present, the northern hemisphere of Mars has begun to enter autumn. According to the analysis of previous exploration data, autumn is the season of frequent sand and dust weather on Mars. At present, no obvious sand and dust weather has been observed in the inspection area of "zhurong".
　　

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Figure 1 image of "zhurong" patrol area taken by high-resolution camera

The "zhurong" Mars rover also sent back self photos from the surface of Mars. Compared with the photos taken just after landing, it can be seen that a thin layer of sand and dust has accumulated on the surface of the Mars rover. At the same time, judging from the telemetry information of the Mars rover, the power generation efficiency of the solar wing is affected to a certain extent, but the energy is still sufficient. In order to cope with the dust cover, the solar wing of the Mars rover has been specially designed, and various measures can be taken to deal with the reduction of power generation efficiency caused by the dust. At present, it is not necessary to use it. The current energy state is sufficient to support the Mars rover to continue driving and carry out exploration.
　　

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(a) Photographed on May 19, 2021 (the 5th Mars day after landing), the surface of the rover is not covered with sand and dust

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(b)Photographed on January 22,2022(the 247th Mars day after landing),the surface of the Mars rover is covered with obvious sand and dust
Figure 2 Comparison of the images of the rover body taken by the navigation Terrain Camera in different periods

The ultralight magnesium lithium alloy developed by Xi'an Sifang ultralight Materials Co., Ltd. has been widely used in the embedded parts, supports, Mars rover and spectrometer structures of "tianwen-1" and "zhurong-1". As of March 24, 2022, the ultralight magnesium lithium alloy has accompanied the "zhurong-1" Mars rover to work on the surface of Mars for 306 Martian days, with a total travel of 1784 meters. It has accompanied the "tianwen-1" orbiter for 609 days, 277 million kilometers away from the earth, Currently, the two devices operate normally.

observed,inspection