The Chinese and American orbiters simultaneously focused on the "Zhurong" rover, taking strip maps, and the clarity was clear at a glance

Recently, the "Zhurong" rover, which is 277 million kilometers away from us, suddenly caught fire, and has once again become a hot topic of discussion among the Chinese people, because the Sino-US Mars orbiter focused on the Zhurong at the same time and took pictures, one is the Chinese Tianwen-1 orbiter, and the other is the US Mars Reconnaissance Orbiter (MRO).

The Mars orbiters of China and the United States have taken strip maps of the "Zhurong" rover, a very long giant picture, who is clearer? Naturally, it is necessary to make a comparison, anyway, starting from 2021, it is not the first time that the comparison of satellite photos of China and the United States is not the first time.

There are a total of three Mars rovers on Mars, Zhu Rong, Perseverance and Curiosity, so Zhu Rong's every move was recorded by the Us Mars Reconnaissance Orbiter, and at the same time, the Chinese Tianwen-1 orbiter is also recording the itinerary of the American Perseverance, which is a public event.

The U.S. Mars Reconnaissance Orbiter photographed the "Zhu Rong" strip map

Recently, China's Zhurong has traveled a total distance of nearly 1800 meters, creating the first Mars milestone belonging to China, and at this time, the Us Mars reconnaissance orbiter focused the lens on the "Zhurong" and took an ultra-high-definition strip map, showing all the wheel prints left by the "Zhurong" on the utopian plains in the past 10 months.

The yellow-brown surface of Mars, light brown sand dunes like eyebrows, the uneven surface is dotted with large and small impact craters, some of which look very new, of course, the most eye-catching place in the strip chart is the "Zhu Rong" rover, lander, heat shield and deep wheel prints.

On March 11, 2022, when the U.S. Mars Reconnaissance Orbiter orbited Mars at an altitude of 288 kilometers, it obtained this ultra-high-definition strip map, and the maximum resolution of the image was slightly higher than 0.3 meters.

The U.S. Mars Reconnaissance Orbiter consists of three cameras, two spectrometers, a radar and two "scientific facility instruments", HiRISE (camera), CTX (camera), MARCI (camera), CRISM (spectrometer), Mars climate explorer, SHARAD (radar), gravity field survey package, Electra communications package.

Among them, HiRISE (camera) is a reflecting telescope with a diameter of 0.5 meters, at an altitude of 300 kilometers, hiRISE has a maximum resolution of 0.3 meters, which is higher than the resolution of the Earth satellite image, to know that the resolution of the Earth satellite is about 0.5 meters, and the satellite image resolution on Google Maps is about 1 meter.

The Tianwen-1 surroundor also photographed the strip diagram of the "ZhuRong"

Recently, in order to celebrate the "Zhurong" accumulated nearly 1800 meters of distance, china's Tianwen-1 orbiter also aimed the lens at the "Zhurong" Mars rover, took a super-clear strip map, but also showed all the wheel prints of the "Zhurong" on the surface of Mars, but the image is black and white, not as attractive as the strip map taken by the US Mars Reconnaissance Orbiter.

This black and white strip map also shows extraordinary topography, impact craters and sand dunes, and also shows three small black dots, namely the lander, the heat shield, the Zhu Rong, and the wheel print, and it is clear that the resolution of this black and white strip map reaches 0.5 meters.

China's Tianwen-1 operated on a circumferential orbit of 10,700 kilometers from the far fire point and about 265 kilometers near the fire point, with an inclination angle of 86.3 degrees and a period of 7.8 hours.

The Tianwen-1 orbiter includes two cameras, a radar and four scientific analyzers, a medium resolution camera (MoRIC), a high-resolution camera (HiRIC), a orbiter subsurface detection radar (MOSIR), a Mars Mineral Spectrometer (MMS), a Mars Magnetometer (MOMAG), a Mars Ion and Neutral Particle Analyzer (MINPA), and a Mars Energy Particle Analyzer (MEPA).

Among them, the high-resolution camera (HiRIC) in panchromatic mode, at an altitude of 256 kilometers, the maximum resolution is about 0.5 meters, and the photos taken tonight are clear and abnormal, but they have not yet reached 0.3 meters.

Clarity at a glance

The "Zhurong" strip map taken by the US Mars reconnaissance orbiter is colored, and the strip map taken by the Tianwen-1 orbiter is black and white, which is not the point, the point is that the wheel prints taken by the US orbiter show two, and the wheel prints taken by the Chinese orbiter can only show one.

The highest resolution of the Tianwen-1 orbiter is around 0.5 meters, while the maximum resolution of the US Mars Reconnaissance Orbiter is 0.3 meters.

The clarity has been clear at a glance, the United States Mars reconnaissance orbiter is clearer, this is an indisputable fact, which also reflects that there is still a certain gap between China's aerospace technology and american space technology, but the gap is not very large, we must also catch up, do not blindly arrogant, seek truth from facts.

In the past 70 years, the mainland aerospace science and technology from zero to catch up with the United States, the gap is narrowing step by step, by 2022, the gap has been very small, looking around the world, there are only two countries that can have a Mars rover, one is the United States, the other is China.

At last

The Mars orbiters of China and the United States focused on the "Zhurong" rover at the same time, taking pictures, although the results have been clear at a glance, but this is the honor of the "Zhurong", "Zhurong" Mars rover is therefore on fire again, obviously not a bad thing, let more people know how good China's aerospace science and technology is. Interesting and informative scientific content, please pay attention to the only WeChat public account: Interesting Exploration