Less skilled than people？ The first picture of the 41-star return of ＂Jilin No.1＂ is hotly debated! Really not as clear as Google？

　　As expected, "Jilin No.1" finally returned the "first picture" after the launch! Indeed, as can be seen from the picture, the satellite images of "Jilin No.1" are all in color, and the buildings and location layout on the ground are relatively clear, which suddenly makes many sprayers who spit out the satellite images of China only in black and white shut up.

　　6.15 "Jilin No.1" was launched with 1 arrow and 41 stars.

　　However, don't underestimate them, although they are so perfect, it's not, pick out the thorns again!

　　After "Jilin No.1" returned the "first picture", most netizens really affirmed its breakthrough contribution. However, there are also a few elite, and there are new rhetoric.

　　And interestingly, it may be that these "prickly heads" are always in the limelight, and they are still in the forefront under the comment area where the official news is released. They all said: "There is still room for improvement, it should be clearer, and the missile hit rate will be higher." "Now I want to use satellite maps to see the changes in my hometown, all of which are vague. It's really clear when Google is there! " "There is still a big gap with Google" ... and so on.

　　They blindly deny it with the weight of "objective evaluation". Since it is objective, shouldn't it be restrained and promoted? However, this is not the first time to say that "skills are not as good as people", and it has caused heated discussion at the time of launch. So, what's going on? Let's take a concrete look.

　　This is not the first time! The first picture of the 41-star return of "Jilin No.1" is heated again.

　　It is worth mentioning that, to the surprise of many people, in fact, the "Jilin No.1" with one arrow and 41 stars caused a heated discussion when it was launched in June, and this was also attributed to the "sprayers".

　　With the development of science and technology, China's "multi-satellite with one arrow" technology is experiencing an unprecedented leap. In June, China experienced several rounds of record-breaking in just one week. Before "Jilin No.1" set a new record of 41 stars with one arrow, on June 7, China's largest solid-state launch vehicle "Lijian No.1" set a new record of 22 stars with one arrow with 26 stars, which was set by "Long March 8" in February 2022.

　　Obviously, on June 15th, "Jilin No.1" successfully set a new record by the Long March II D carrier rocket. Because of this breakthrough, it means that China can make full use of launch efficiency and reduce launch cost, and it also reflects similar principles in China, such as the rapid progress of missile warhead separation technology, which is really gratifying.

　　Dongfeng 41 uses 10 sub-warheads.

　　But despite this, some people still have something to say. While officially promoting this breakthrough, some people have put forward larger launch records of other countries: "1 arrow with 143 stars" created by Falcon 9 in 2021 and "1 arrow with 104 stars" created by Indian polar satellite launch vehicle in 2017. The meaning is obvious, and some people directly pointed out that China's "one arrow and many satellites" technology is not India.

　　However, after careful understanding, we will find that, first of all, the technology of "one arrow with many stars" obviously does not emphasize "quantity", but the key is "quality"! It needs to be admitted that there is indeed a gap compared with the United States, and it is entirely possible to face up to it and strive to catch up. However, compared with India, it is obvious that both the carrying capacity of near-earth orbit, the carrying capacity of sun-synchronous orbit, and the principle of "multi-warhead technology with one arrow" are far beyond.

　　Unexpectedly, after the rumor that it was "not as good as India" at the beginning of the launch, the "Jilin No.1" returned the "first picture" with one arrow and 41 stars, which triggered a heated discussion that it was not as good as other countries' satellites.

　　Less skilled than people? Is the satellite map of "Jilin No.1" returned by 41 stars really inferior to that of the United States?

　　Is it really that netizens say that "the skills are not as good as people", and the 41-star satellite map of "Jilin No.1" is really not as good as that of other countries? Obviously not!

　　According to relevant statistics, at present, "Jilin No.1" has achieved 108 satellites in orbit through 21 successful launches, and built the world's largest sub-meter commercial remote sensing satellite constellation. It can be said that it is one step closer to the goal of networking 138 satellites around 2025.

　　In essence, the "Jilin-1" satellite has two characteristics, one is the commercial optical remote sensing satellite constellation, and the other is the agricultural use. First of all, as far as the first feature is concerned, this also determines that since it is commercial, and the memory of the original image is too large, then it must be a compressed image of a large range of space.

　　Secondly, as far as the second feature is concerned, its target is mainly agriculture, which has the characteristics of wide coverage and fast response, so there is absolutely no need to enlarge a place to show the accuracy and clarity to the outside world. Because according to the official introduction, when the network of 138 satellites is completed, there is no need to worry about the identification accuracy, which can exceed 95%, and the automatic identification of buildings, roads, water bodies, trees, etc. can be completed online, and you can revisit any place in the world within 10 minutes.

　　Moreover, Google in the United States, which is compared by netizens, is actually completely wrong! Indeed, it needs to be admitted that 98% of Google Maps are photos taken by satellite. However, in China, the targets are definitely only maps such as Baidu and Gaode, rather than networking satellites like "Jilin No.1". In contrast, one is a collection of satellite maps, and the other is a satellite shot in real time, all of which do not belong to the same dimension.

　　As far as the advantages and disadvantages of technology are concerned, in fact, China's "Jilin 1" networking satellite is not bad at all! According to relevant data, the data of Google Maps is refreshed once every quarter and once every 18 months, while the data of Google Earth is refreshed once a day and once every quarter. However, it needs to be admitted that places with high attention will have higher update frequency, and vice versa.

　　As for China's "Jilin No.1", as mentioned above, it will be refreshed and revisited within 10 minutes, and the "one map of the world" has more real-time utility.

　　And in terms of definition, the high-definition satellite map in Google Earth is composed of high-resolution satellite maps provided by many companies, with different levels of images of 0.6 m resolution, 1 m resolution, 2.5 m resolution, 4 m resolution and 10 m resolution. Previously, because the satellite map of the Russian-Ukrainian battlefield with a resolution of 0.5 meters was updated, it also caused a heated discussion, and they all said "one hit and one accurate".

　　However, China's "Jilin No.1" actually has a panchromatic satellite with a resolution of 0.5 m-Jilin No.1 wide-width 01C satellite, and there are also satellites with a resolution of less than 1 m, such as the high-scoring series with a resolution of 0.75 m and 0.76 m. Therefore, it is not inferior in terms of accuracy.

　　And as far as the actual satellite image of "Jilin No.1" after aiming at the target is concerned, the optical A star has previously photographed the influence of a naval shipyard in Philadelphia, USA. The types and numbers of ships in the picture are clearly distinguishable, so its clarity is completely sufficient even in wartime!

　　In a word, the "Jilin No.1" networking satellite is a leader in China and even in the world, and no one can be "belittled" blindly. It's really touching to be brave enough to admit the gap in the insufficient areas, but it's also very important to be brave enough to show your sword in the leading areas. "Modesty" also needs a certain limit, otherwise it will become a blind worship of foreign things and flattery, don't you think?