How many satellites are there above the earth?
How many satellites are there above the earth?
209 satellites
Since 19571October 4, when the Soviet Union launched the first man-made satellite Putnik- 1, the human world has switched to a brand-new channel, which is the satellite channel in the space age.
The global satellite launch wave triggered by the US-Soviet space race made all kinds of satellites fly into the sky, covering the high, low and high orbits of the earth. Current military, scientific research, communication, weather forecast, etc. All these depend heavily on small satellites.
In 60 years, how many satellites will be overhead?
This seems to be a false question that can't get a clear answer, but in fact it is.
According to the data disclosed by authoritative organizations (COPUOS, ITSO, DOD, NASA)-
At present, there are about 500 thousand people making flying objects above us.
Among these 500,000 flying objects in orbit, very few satellites are used in orbit, and most of them belong to the debris of retired satellites and man-made flying objects (garbage in space).
The world's most powerful spatial map/analysis software has launched a 3D satellite search map, which can observe 15628 man-made flying objects online, including most satellites currently in orbit. If you are interested, please click:
Satellite map: /rc/sat2/index.html
As of 20 17, there are about 1500 satellites in orbit (active satellites). Let's look at the countries/institutions with the most satellites. The top 20 countries are-.
Usa 579
China 19 1
Russia 133
66 multinational companies (such as Google, Wal-Mart, Facebook)
Japan 60
42 in India
There are 40 in Britain.
From the European Space Agency.
In Canada
24 in Germany
Luxembourg
Spain
Israel.
1 1
Saudi Arabia
Brazil
Netherlands 10
9 in Singapore.
Korea 9
Nine are in France.
In this satellite race, the United States has always been in the lead.
There are 593 satellites in service in the United States, including 297 for commercial use, 50 for military use, 36 for government use and 0 for civilian use.
China has 192, only 32% of the United States. Among them, 93 are for government use, 58 are for military use, 265,438+0 are for commercial use and 20 are for civilian use.
Russia ranks third, 135, military 8 1, government 26, commercial 2 1, and civilian 7. It is not difficult to see that the personality characteristics of the United States, China and Russia are very different. American commerce is supreme, China government is dominant, and Russia is armed to the teeth.
In terms of quantity alone, the United States, China and Russia add up to 920 satellites. Compared with the total number of satellites expected to be launched by a space exploration technology company, it is simply nine Niu Yi hairs!
What the hell is going on? who is it? What a cow!
This is the famous space exploration technology company, which submitted an application to the Federal Communications Commission at the end of last year. It is estimated that 4,425 satellites will be launched from 438+09 in 2065 to 2024 for global high-speed Internet transmission.
It is estimated that at least $654.38+000 billion will be invested to provide users anywhere in the world with a network speed as high as 654.38+0 Gbps. These communication satellites belong to low-orbit satellites and are deployed in the orbit from 1 150 km to 1275 km.
Once it can be realized, the real era of global interconnection will come completely! Large local area networks will also exist in name only. Space exploration technology companies can earn $30 billion a year from it.
Although the "crazy plan" to launch 4,425 satellites in six years has been adjusted and extended, a considerable number of space exploration technology companies and Musk's hardcore fans firmly believe that this great plan will eventually be realized.
Because they firmly believe that technology cannot change the principle, but it can rewrite the rules.