Lead
On March 23, 2021, a Taiwanese freighter called "Ever Given" ran aground its bow on a mound of earth in the Suez Canal, causing hundreds of freighters around the world to be blocked at both ends of the Suez Canal, causing considerable losses to the global economy.
After six days of difficult dredging, the Suez Canal was successfully dredged on March 29, 2021.
However, during these six days, the blockage of the Suez Canal caused the unobstructed passage of ships around the world, resulting in many cargo ships being forced to stop sailing and waiting, and the economic losses caused were quite heavy.
During this period of time, a large number of people around the world were very concerned about the progress of the dredging of the Suez Canal, and witnessed the scene of cargo ships around the world being blocked by both ends of the Suez Canal.
Within a few days of the blockage of the Suez Canal, a Chinese satellite also took a picture of the Suez Canal, and then some people took out this photo for comparison, and then accused the Chinese satellite of taking the photos of being too poor to see the Suez Canal blockage, triggering a storm of "obscuring the photo gate of the blockage".
1. "Blocking the ship blurred photo door".
On March 23, 2021, a Taiwanese freighter named "Ever Given" ran aground on a mound of earth in the Suez Canal, causing the waterway of the Suez Canal to be blocked.
With the blockage of the Suez Canal waterway, a large number of cargo ships around the world cannot pass through the Suez Canal smoothly, and can only wait for the Suez Canal to be dredged at both ends of the Suez Canal.
People all over the world are very concerned about this accident, and they are also very concerned about the impassable cargo ship blocked at both ends of the Suez Canal, as well as the cargo on the cargo ship.
At the same time, there are also many people who are disgusted with the owner of this Taiwanese freighter, because during this period of time, the blockage of the Suez Canal caused the unimpeded passage of ships around the world, resulting in many freighters being forced to stop sailing and waiting, and the economic losses caused are quite heavy.
During this time, hundreds of freighters were forced to stop sailing due to the blockage of the Suez Canal, and the number of these cargo ships was still growing, and many people hated the "Ever Given".
During this time, a Chinese satellite also took a picture of the Suez Canal, and then someone took out this photo and compared it with the current situation of the Suez Canal dredging, and then accused the Chinese satellite of taking photos of poor quality, and could not see the Suez Canal blockage clearly.
And people with rich imagination also directly distorted this photo, modified the current situation of the Suez Canal dredging, and then compared the imaginary Suez Canal dredging status with the actual Suez Canal dredging status.
As a result, this Chinese satellite photograph of the current situation of the Suez Canal dredging is much more vague than the actual Suez Canal dredging status.
In this turmoil, some people accused the Chinese satellite of taking too poor photos, and some even maliciously distorted the photo, comparing the current situation of the Suez Canal dredging with the actual Suez Canal dredging status, triggering a storm called "Blocking Ships and Blurring the Photo Gate".
2. The imaging capability of China's Haisi 1 satellite.
So is there anyone who blames the photos taken by Chinese satellites for being so bad?
In fact, China's satellites have a very strong shooting capability, and in order to ensure the quality of the photos taken by the satellites, the photos taken by China's satellites still need to be reviewed before they can be released to the public.
On March 23, 2021, the day the Taiwanese cargo ship "Ever Given" ran aground in the Suez Canal, China's Haisi 1 satellite covered the location of the Suez Canal and took a photo of the Suez Canal, which was also released.
But after this photo was released, it did not attract the attention of the world, but after the Suez Canal was dredged, someone took out this photo and compared it, and then accused the Chinese satellites of taking too poor photos to see the Suez Canal blockage.
So how bad are the photos taken by China's Haisi 1 satellite?
In fact, the photos taken by China's Haisi 1 satellite are not bad, but because this photo is different from the photos taken by ordinary satellites.
In order to capture images of the earth's surface, general satellites are taken by optical means, so that the photos are very real and very clear.
However, in terms of ocean and land observations, radar technology will be more suitable than optical technology, because in ocean and land observations, radar technology can avoid the influence of weather on observations, and it can also avoid the influence of night on observations.
Therefore, in the design of China's Maritime Silk Road-1 satellite, radar technology was used to design for ocean and land observations, so the photos taken by the Maritime Silk Road-1 satellite are all blue.
It's not that the photos taken by China's satellites are really worse than those taken by satellites of other countries, but because China's Haisi 1 satellite takes photos of ocean observations, not optical photos.
3. How strong are the photos taken by Chinese satellites?
So how strong are the photos taken by Chinese satellites?
In fact, the photos taken by Chinese satellites are no worse than those taken by satellites of other countries, and there are even some Chinese satellites that take clearer and stronger photos than those taken by satellites of other countries.
So which satellite of the continent takes stronger photos?
This satellite is the well-known Jilin-1 satellite, which is a commercial satellite launched by the mainland in 2015 and the first private commercial satellite in the mainland.
As the first commercial satellite in the mainland, the Jilin-1 satellite has very advanced satellite shooting technology, so the Jilin-1 satellite is also known as one of the representatives of the mainland satellite.
On May 22, 2015, the mainland launched the first Jilin-1 satellite, which has very strong imaging capabilities after launch, and can shoot very small objects on the surface of the earth in space.
And the photos taken are also very clear, so the launch of the Jilin-1 satellite has attracted the attention of the world, and even the United States is shocked by the mainland's satellite, believing that the mainland's satellite photography technology has caught up with and surpassed the United States.
And after the launch of the Jilin No. 1 satellite, the mainland has also launched the Jilin No. 2 satellite and the Jilin No. 3 satellite, and after the mainland, there are other commercial satellites one after another, it can be said that the mainland's commercial satellite manufacturing has also led the global trend, not only in satellite manufacturing, the mainland's satellite services are also the strongest in the world.
4. Commercialization is the future trend of the satellite industry.
At present, there are many countries in the world that are manufacturing commercial satellites, and the global satellite manufacturing and satellite service industry is also growing and developing.
So why are countries around the world manufacturing and developing commercial satellites?
This is because commercialization is the future trend of the satellite industry, and with the development of technology and the growth of market demand, the commercial satellite manufacturing and service industry will continue to expand.
At the same time, the commercial satellite manufacturing service industry is also a very profitable industry, and government investment alone is far from enough, so countries around the world will invest in this industry.
At present, the global satellite manufacturing and satellite service industry is also very competitive, and companies from various countries are not only competing, but also cooperating to promote the continuous development of satellite technology.
However, there are also some people with ulterior motives around the world who maliciously tamper with the photos taken by satellites and then disseminate them, causing great misinformation.
Therefore, when you look at the photos taken by satellites, you must keep your senses, if the photos taken are very blurry, it is possible that the Chinese satellites take radar photos, not because the photos taken by the Chinese satellites are very poor.
At the same time, the mainland's satellite photography technology is also very advanced, and there is no need to maliciously distort the photos taken by the mainland's satellites and spread rumors.
At the same time, the mainland's satellite photography technology is also very advanced, the mainland's satellite manufacturing has also led the global trend, the development of commercial satellites, will promote the continuous innovation and development of satellite technology, but also promote satellite technology more widely used in various fields.
epilogue
The development of the satellite remote sensing industry will provide more data support for countries around the world, which will help the application of environmental protection, resource management, disaster monitoring and other fields.
At the same time, it is also conducive to the development of the mainland's satellite industry, further promotes the progress of the mainland's satellite science and technology, and will also bring new opportunities and challenges to the sustainable development of human society and the progress of science and technology.