Satellite | Communication Satellite | Work of Satellite

Satellite is prepared for many things. And they are very important in our lives. it is created by keeping in mind the comforts of human beings. It rotates the earth, which gives the satellite information about all the things happening on the earth.

Latest Updates:
ISRO successfully launching earth observation satellite RISAT-2B (Radar Imaging Satellite) on Wednesday. It was sent to Sriharikota from Andhra Pradesh via PSLV-C46 rocket. This was the 48th campaign of this rocket. The satellite was installed in the classroom after 15 minutes of flying. According to sources, the RISAT-2B will also be able to take photographs from the height of 3 feet in the cloud and rain. This will help in intelligence monitoring, agriculture, forest and disaster management. It will replace Recept 2, which was launched in 2009. Now launching ISRO Chandrayaan-2 Will focus on It is to be launched between July 9 and July 16.

Specialties of RISAT-2B
The weight of the satellite is 615 kg.
established at an altitude of 555 km from Earth.
Synthetic aperture radar i.e. abstract imager

What is the satellite

It’s monitoring the Earth’s atmosphere and every smallest thing on earth. It revolves around the earth, the satellite is also called a उपग्रह in Hindi. Moon is also a satellite. But the moon is a natural satellite. It does not run according to man. With inspiration from the moon, man has set up his own satellite. And left them in space. The Satellite can also be equal to a small box. And it can be equal to a big truck.

The size of the satellite depends on their work, for which work has been left for that satellite. But the structure of all the same.

How does the Satellite work?

Solar panels are mounted on either side of the satellite. From whom they get energy. There are transmitters or receivers in the center, which act as the receiver and send the signal. There is also a control motor through which we can remotely control it. If they have to change or change the angle, then it can be controlled by the motor. If it’s is designed for scanning, then scanners are applied. It is mainly used for communication. Radio and Ground Web can not cover entire communication, so most are used for communication.

Use of Satellite

It’s is used in many ways, let’s know about their experiments:

1. The work of some satellites is to map the active fire on Earth. This color shows the heat of fire by the system. Through which fire can be identified.

2. It has also been developed to understand the environment. It understands marine life. The changes that take place in the environment have contributed a lot to the sea.

3. Phone and pager can be run by Upgrah itself. In 1998, when a satellite had stopped working, 80% of pagers in the US stopped working.

4. Global Forest Systems uses satellite data to show how much woods are on the ground. And how much land is worth cultivating. Through this data road construction and house are built.

Types of Satellites

It’s divided into three types, we are telling you further about its types:

Low Earth Orbit’s Satellite

These are closest to the Earth’s orbit. Their height ranges from 160 to 1600 km. Their speed is fast. It revolves around the earth at a fast pace. Because of this, many times during the day, they are able to rotate the earth. And it seems very little time to scan the earth. And most of them are used for image and scanning.

Medium Earth Orbit’s Satellite

These do not rotate the earth at a much faster pace. It completes one round of earth in 12 hours. This satellite passes through a certain period of time. The height of these from 10 thousand kilometers to 20 thousand kilometers. They are used for navigation.

High Earth Orbit’s Satellite

It’s about 36 thousand kilometers away from Earth. It revolves around the earth with the speed of the earth. These satellites are used for communication.

Some other Types

  • Communications
  • Remote Sensing
  • Navigation
  • Geocentric Orbit type – LEO, MEO, HEO
  • Global Positioning System (GPS)
  • Geostationary (GEOs)
  • Drone
  • Ground
  • Polar
  • Nano-Satellites, CubeSats and SmallSats

What is Artificial satellite?

Human-made satellites are called artificial satellites. It is closer to the Earth compared to the Moon. To get these out of the earth’s gravitational force, speed of 11.2 kilometers per second is needed.

Only a few countries in the world have the technology to create artificial satellites and to establish them in the orbit of the Earth. India is also included in these countries. India’s first technology satellite Aryabhatta was launched in April 1975.

Uses of It

It’s used in many kinds of tasks. We will learn more about its functions:

  • The weather is predicted by using these satellites. It gives us information about monsoon. Also warn about disasters like flood, cyclone and forest fire.
  • It’s been used to collect information about the Internet, telecommunications and remote sensing agriculture, the characteristics of the land-ocean, etc.
  • In addition to these works, are also used for scientific research.
  • Consultation services are also conducted by them. Knowing the status of crops, giving information about the density of fish in the sea, giving information about the land use of farmers and fishermen.

What is Communication Satellite

Communication Satellite is called संचार उपग्रह in Hindi. This is artificial. It creates a communication channel between a source transmitter and a receiver on various locations on the earth.

संचार उपग्रह are used for telephone, television, radio, Internet applications. Wireless communication uses electromagnetic waves to move signals from one place to another.

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