China News Service, Beijing, August 30 (Mars Shuaisha, Yang Lu, Chen Gang) China's first Mars exploration Tianwen-1 mission "Zhurong" rover has been on the surface of Mars for 100 days, China National Space Administration and People's Bank of China On the 30th, a gold and silver commemorative coin issuing ceremony for China’s first successful Mars exploration mission was held in Beijing on the 30th to commemorate an important step in China’s successful interstellar exploration journey, leaving China’s footprint on Mars for the first time, becoming the world’s first mission to achieve Mars orbit , Landing and patrolling countries.
It is understood that as of August 30, the "Zhu Rong" rover had traveled a total of 1064 meters south of the landing site.
At present, the rover is in good condition and has sufficient energy. It will continue to follow the high-efficiency detection mode of "seven-day cycle, one-day planning, daily detection", and drive to the ancient sea-land junction in the south to obtain richer scientific exploration. data.
The orbiter has been in orbit for 403 days and is about 392 million kilometers away from the earth. On August 24, a high-resolution camera was used to image the landing area, and a 1-meter resolution image was obtained. The image shows a clear track of the rover.
At present, the distance of the earth fire is gradually approaching the farthest (about 395 million kilometers). In mid-to-late September, the earth and Mars will travel to both sides of the sun, and the three will be almost in a straight line, and the probe will enter the solar transit phase.
During the transit, due to the influence of solar electromagnetic radiation interference, the device-to-ground communication is interrupted, the orbiter and the rover will switch to safe mode and stop the detection work.
After the solar transit, the orbiter will select the opportunity to enter the remote sensing mission orbit to carry out global remote sensing exploration of Mars, while taking into account the relay communication of the Mars rover's expansion mission stage.
The commemorative coins issued this time are the legal tender of the People’s Republic of China and are issued by the People’s Bank of China. There are 3 coins in total, including 2 gold coins and 1 silver coin.
The commemorative coin uses a combination of realism and freehand brushwork, and adopts classic coinage techniques such as mirror surface, sandblasting, and multi-level sandblasting. The front patterns are all Chinese planetary exploration logos, and the country name and year number "2021" are published. The back patterns are respectively With the theme of the first Mars exploration mission "orbiting, landing, and patrolling", it also publishes "China's first Mars exploration mission success: Tianwen No. 1" and its denomination.
This commemorative coin is China’s seventh set of gold and silver commemorative coins with aerospace theme. Prior to this, the 40th anniversary of the founding of China’s aerospace, the successful first manned space flight, the first lunar exploration flight, the first space walk, the opening of the Beidou satellite navigation system, and the first landing. In major aerospace events such as the success of the month, precious metal commemorative coins were issued.