Monday , May 16 2022

How many satellites are in the Earth's orbit, why do not they blow?


64 satellites in one single mission.

This is Spaceton's aerospace space SpaceX aims to launch South African multimillionaire Ellon Musk on Sunday after several repetitions.

It is a historic race since Falcon 9 rockets It will take the largest number of satellites in a single mission that comes from the U.S. land.

64 marketable satellites They come from 34 different organizations from 34 different countries.

Devices have a different dimension and they perform various functions to improve pirated pirate communications on the internet at sea.

But you ask how much satellite is in space? Can anyone send them? And can they go against each other?

How many satellites are there?

If you were to invent the number of satellites that are spinning around the Earth, what number do you mean? Hundreds, thousands?

According to the Objective Index placed in the outer space, prepared by the United Nations Office of Foreign Affairs (in English, UNOOSA) 4,921 satellite orbit Nowadays.

But they are not all active.

"They have no more than 2,600 satellites working, but they are still in orbit and 17,000" objects "in space," explains David Barnhart of the Space Engineering Research Center at the University of California, Los Angeles. Angeles, United States.

The experts say that the space debris that orbit the earth and experts who exceed 7,600 tonnes, according to the US National Aeronautics and Space Administration in February this year. (NASA, for its acronym in English)

"All of them are on orbit around 100 km (orbital orbital) in the Earth, about 100,000 km (or geostationary orbit) around the Earth," Barnhart told BBC World.

What is the size of a satellite?

If you think it's a satellite, it's probably a heavyweight heavyweight device that weighs a ton of first image.

But they are not all like them.

"The size varies one a basket of bread (for example, one tenth centimeter on each side and a few kilograms in weight) to school bus (on each side, several thousand and a thousand kilograms), "Barnhart says, designing satellites.

What is the function of a satellite?

All satellites are not targeted at watching and watching Earth.

"The satellites around the Earth's surroundings meet a variety of functions communications (mobile phone coverage and data transfer), watching From the ground, navigation and positioning (This is all the GPS system we use), and study of space and planet part of science"describes the specialist.

How does the satellite stay in orbit?

The satellites are around the planet, because the speeds are fast enough to overcome gravity.

A fire turns the satellite into space, and when the exact location is reached the satellite positions its orbit.

As the satellite breaks the speed between the rocket, it is enough to keep the device in orbit for hundreds of years, The National Satellite Services Service, the Data and Information Service (Nesdis), referring to the United States Ocean and Atmospheric Service.

A satellite is in orbit by speed and gravitational force on the Earth. The nearest to the ground demand a greater speed to face gravity, Nesdis explains it on his website.

And the satellites make a fuel supply that is used to change orbit or avoid collisions.

So, can satellites collapse?

"Yes, they can fail, but often it does not happen. Many satellites seem too great & # 39; space and they usually place orbits that do not interfere or interfere with each other, "says Southern California University experts.

"This does not mean that it has not happened and it can not happen, and with millions of satellites more installation plans, the probability of a possible collision will increase," he adds.

In February 2009, two satellite communications, one American and one Russian joined the space. It is believed that the first time that the satellites hit by two men accidentally described Nesdis center.

Who controls satellites?

Satellites can be owned by organizations, companies, governments and individuals.

There are many rules to control the frequency of radio communications in orbit, and they enter orbits to prevent interference.

According to the Outer Space Treaty (1967), each country has some regulatory controls in place for satellite, to avoid attempting to prevent and launch radio interference, "said Barnhart BBC World.

In the United States, for example, private companies have to obtain a federal license to work in space.

If you want to make operations with a satellite communication, you need to request permission from the Federal Communications Commission (FCC) or start a satellite space, you need permission from the Federal Aviation Administration (FAA).

And overall, it is responsible for implementing United Nations policies related to the United Nations Office of the United Nations (UNOOSA). It acts as a regulator of the space world.

Anyone can send a satellite space?

"Yes, Nowadays, almost anyone can send satellites to space. High school students built and launched their satellites to share programs with startups and some government agencies around the world, "says Barnhart.

Commercial companies are launching satellites in space over the last 10 years, almost tripled, until investments reach billions of dollars.

"The space industry is a very exciting time, with a lot of new features in new satellites, but also in development The "service" satellite industry was not so far ", Barnhart explores.

Source link