What is satellite? - Know about Satellite in detail!

Satellite-image

Artificial satellites are satellites made in the scientific process launched in space, placed at different heights for different types of work...


You must have heard or tried to know about orbiting satellites at some point. Because it lies so far away from us that we cannot see it. However, most of our daily life depends on satellite, especially online work. But you probably know very little about what it really is and how it works. So let's know what is satellite in detail.


Satellites are designed to do a lot of work, and they have a lot of importance in our lives. Satellites are built with people in mind. It revolves around the earth and makes us aware of everything that happens on earth.

What is a Satellite?

Artificial satellites are satellites made by scientific processes launched into space. It monitors the earth's atmosphere and every little thing in the world. It revolves around the earth. The moon is also a satellite. However, the moon is a natural satellite and does not revolve around the earth according to humans.

Humans have created satellite by taking inspiration from the moon. Satellites can be the equivalent of a smaller xerox machine and can also be the equivalent of a big.

The size of the satellite depends on their work, for what purpose that satellite has been left in space. But the structure of all the satellites is the same.

They are closer to the Earth than the Moon. These satellites require a speed of 11.2 kilometres per second to take them out of the Earth's gravitational force.

Artificial satellites are placed outside the earth at a point from which it can orbit the Earth constantly. Its motion to rotate the earth is not round, oval.


Few countries in the world have the technology to make artificial satellites and place them in the earth's orbit. These countries also include India. India's first satellite was Aryabhata. Which was launched in April 1975?


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Types of satellite

There are three types of Satellite available
There are three types of satellites - 1) Low Earth Orbit Satellite, 2) Medium Earth Orbit Satellite, 3) Geosynchronous Orbit Satellite. Let's know about these.


1) Low Earth Orbit Satellite (LEOs)

These satellites are closest to the Earth's orbit. Their altitude ranges from 160 to 2,000 km. Their speed is fast. It revolves around the Earth at a fast speed.

Because of this, they complete the rotation of the Earth several times in a day. It takes very little time to scan the earth and they are mostly used for taking images, spying and to know the weather forecast.


2) Medium Earth Orbit Satellite (MEO)

These satellites do not orbit around the Earth at high speeds. It completes a circle of the earth in 12 hours and this satellite passes through a given time. The altitude of this satellite is from 2,000 km to 36,000 km. These are used for GPS navigation.


3) Geosynchronous Orbit Satellite (GEO)

These satellites are located about 36,000 (35,786 km) km from Earth. It completes a circle of the earth in 24 (23Hrs 56Min 04Sec) hours. But this does not mean that it rotates at the speed of the earth, it has to cross 36,000 km radius more than the earth so it rotates faster than the earth. These satellites are used for telecommunication.

Use of satellites

Satellites are used for various purposes. Below is given the satellite functionality.


  • The weather is forecast using these satellites. It warns us about disasters like monsoons, cyclones, forest fires.
  • Artificial satellites are used to collect information on the Internet, telecommunications and remotely sensitive agriculture, land-sea features and more.
  • In addition to these functions, artificial satellites are also used for scientific research.
  • It also operates consulting services. Such as knowing the status of the crop, giving information about the density of fish in the sea, providing information on land use of the farmers etc.




First Satellite

The former Soviet Union credited the launch of the first artificial satellite in space. On October 4, 1957, the spacecraft called the Sputnik 1 was the first satellite to launch on Earth's orbit.

Soviet-union-first-launch-Sputnik-1-satellite-in-space
Sputnik 1
After that, the divided countries set up satellites in space. Subsequently, the United States launched the 1958 Saket on a Juno-1 rocket and transported it to the Explorer-1 space. France, Japan, China, the United Kingdom, India, Israel, Russia, Ukraine and Iran launched satellites, respectively.

How does Satellite Work?

There are solar panels on both sides of the satellite and energy is obtained through it. It has a transmitter in the middle that works to transmit and receive signals. The satellite also has a control motor through which we can control the satellite remotely. If it has to be moved or angle changed, it is controlled by the control motor.

All the satellite circuits in the main body of the satellite are designed. All the objects are visible in the satellite for which the satellite is designed for. If the satellite is designed to capture the Earth, then large cameras are installed in the satellite.

If it is designed for scanning, then scanners are installed in it. Satellite is mainly used for communication. Radio and ground web cannot cover the entire communication of the earth, hence most of the satellites are used for communication.



What is a Communication Satellite?


Communication satellites is a communication channel between a source transmitter and a receiver at various locations on Earth.

Communication satellites are used for television, radio, internet. Wireless communication uses electromagnetic waves to carry signals from one place to another.


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Conclusion,


Hope you like this post what is satellite? and the information I have provided will be useful to you.

If you have any suggestions or questions related to the Satellite, please comment in the comment box below.


If you like it, definitely share it with your friends and on social media, so that more people can know about the satellite.
What is satellite? - Know about Satellite in detail! What is satellite? - Know about Satellite in detail! Reviewed by Kanu Ray on Tuesday, September 24, 2019 Rating: 5

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