Amazing Chinese satellites
As we all know, China's satellite development and launch process is not particularly long, the world's first launch of artificial satellites is the former Soviet Union, then the United States, France and now a good life of Japan.
That is to say, China is the fifth country to successfully develop and launch artificial earth satellites, but compared with the time when the former Soviet Union launched the first artificial earth satellite, it is still more than a decade late, but with the successful launch of the Dongfanghong No. 1 satellite in the Jiuquan Satellite Black Center, the development of China's satellite industry can be described as "bold".
There are no exaggerations here, but here are two real examples:
In 1970, the Dongfanghong-1 satellite was successfully launched, which was 8 days more than the design life of 20 days; in 1975, China overcame the technical difficulties of satellite recovery, attitude control and re-entry heat prevention, becoming the third country in the world to master the technology of retrievable satellites at that time, and the cost we spent was lower, far smaller than the cost of 12 satellites paid by the United States and 13 satellites by the former Soviet Union.
In 1994, China successfully conducted the satellite waste into treasure experiment, what does it mean? Prior to this, the instrument modules of satellites in various countries would eventually be space junk left in orbit by urban orbit, and would not be burned until they fell into the atmosphere. But China's satellite orbit retention experiment is so powerful that it can allow the instrument module to return to its operating attitude again after being separated, and then become a new technology test satellite!
China will offer the world an "incredible service" - satellite imagery and video accessible in real time!
Yes, the Indian media "Eurasian Times" published an article, which probably means that China will provide an incredible service to the world, everyone can access satellite imagery and video in 100% real time, and this will soon be realized, not a long number of years later, it is expected that this powerful four-ball observation satellite will be launched in July 2022, called "Luojia 3 01" (Luojia 3 01 satellite).
Once the Luojia-3 scientific experiment satellite 01 is successfully launched, the powerful function of its telescope can directly identify the license plates of cars 500 kilometers away and take photos and videos that can reach 0.7 meters.
It is also very simple for everyone to get real-time photos and videos, no matter where you are at the time, you only need a smart phone, and no matter how far away, the time delay will not exceed 10 minutes, to know that such a service is not open to the world at present, this is probably why the Indian media will use the word "unbelievable" to describe it!
Luojia-3 01 satellite is not an intelligent remote sensing experimental satellite independently developed by a certain unit, and the participating units include Wuhan University, Aerospace Dongfanghong Satellite Co., Ltd., Tsinghua University and Beijing Institute of Technology, etc., which have only processing functions in orbit, satellite-to-ground, inter-satellite transmission and communication functions, and multi-mode imaging functions. It can be seen that the significance of this intelligent remote sensing satellite project is significant, and the cost of experiment and verification alone reaches 12 million yuan, which does not include research and development funds.
And, after the Luojia-3 01 satellite, the satellite Luojia-3 02 satellite independently developed and manufactured by Wuhan University is also planned to be launched in 2022, although the optical remote sensing satellite is only 0.5 meters, but it can obtain particularly high-precision mapping and remote sensing data, Academician Gong Jianya said that the main technical indicators of this satellite are the highest level in China, and the Wuhan Municipal Science and Technology Bureau alone has invested 20 million yuan in financial support.
From China's Sky Eye and the Chinese space station to real-time access to satellite image video, how does China interpret what "science knows no borders"?
Built in Guizhou, China, China's Tianyan, its reflective surface is about the size of 30 football fields, as early as 2011 began construction, but until 2020 through the national acceptance of the official opening of operation, however, the sensitivity of this telescope is extremely high, more than the world's second largest telescope 2.5 times, during the observation run, China's Tianyan found millisecond pulsars, as of now, the total number of pulsars found has exceeded 370.
At 00:00 on March 31, 2021, China's Tianyan was officially developed to the world, and astronomers from various countries can submit their own observation applications, and 1500 machine hours will be approved. Many people may not understand that China's sky eye can see through tens of billions of light years, and has made a series of major breakthroughs in research fields such as rapid radio bursts, and the purpose of opening up to the world is to obtain more major research results through cooperation.
In a few months, the Chinese space station will be fully built, in fact, the same reason, 17 countries have already applied for scientific research projects, including Japan, the Netherlands, Russia and India. China has always believed that outer space is the common wealth of all mankind, and although the monopoly of technology can temporarily hinder the development of other countries' space industry, it also makes human exploration of outer space slow.
The opening of the Chinese space station to the world is the embodiment of the responsibility and responsibility of a major country, and it should be known that the construction of the Chinese space station has been prepared for many years, and the time when this goal was formulated was 1992. Moreover, in the process of construction, there are also two emergency collision avoidance, the two collision risks are caused by the United States Starlink satellite, and when the construction of the Chinese space station is completed, it can be a long-term mainstream 3 astronauts, and its design life is also as long as ten years.