What are satellite uses? Is Earth Observation the sole purpose?

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Satellites

Satellites affect our lives in every possible way. They are right above our heads, surrounding the Earth and transmitting information to their stations. In addition to the typical telecom, national security, entertainment, and satellite, many other modern applications exist. So, what are satellite uses? Let’s find out.

How is broadcasting going?

Satellites are first applied in the broadcasting industry. Many of us have cable, but all of us have satellite power. There is always a central station that first broadcasts TV shows. The transmission is initially received by smaller stations in various regions and then transmitted to local stations. Local stations then disseminate the data via television cables.

Spacecraft are also used for television live programs, similar to recorded shows. You may have seen a soccer game live. Have you noticed any major video playback lags? You were probably watching a game at the same moment as your friend from another country. Thanks to satellites, this is possible. The broadcast is first relayed to the Earth’s spacecraft. Signals are then transmitted to soil stations. It takes just a few seconds to complete this whole process.

What are the other satellite uses?

Satellites are also used for telephone signals in conjunction with entertainment broadcasting. Spacecraft are the only way to communicate in a disaster-ridden area. Satellites are also the only means of telecommunications in rural areas in underdeveloped countries where there are no physical wires.

A major failure of the spacecraft operation failed back in 1998. This led to a blackout of the pager communication. This only shows the importance of each communication satellite.

Many business transactions are approved by satellites. Suppose you have a credit card from American Express. Even if you go to a rural region of some Asian country, you will be able to purchase food or pay for your hotel room with this card. This is possible because the transaction is permitted through satellites.

Another area in which satellites play an important role in inventory management. Grocery stores can quickly place a refill order after a certain product is removed from their inventory.

And then comes satellite weather forecasting. Meteorologists use this data to predict the weather in a region. This data accuracy allows us to save thousands of lives from adverse natural disasters. In addition, satellite use is revolutionizing the food industry in agriculture.

Satellite for GPS

We all know the word GPS (Global Positioning System). GPS is mainly made of small spacecraft with a medium-range orbit and radio signal transmission. Both the US and Russia have their global satellite navigation system. GPS from the USA and GLONASS from Russia are publicly available for use by everyone.

GNSS is dependent both on GPS and GLONASS (Global Navigation Satellite System). The International Civil Aviation Organization has recognized them together. Wherever you are, you can rely on GPS to provide you with precise navigation data. The data is only 7-8 meters apart and 96 percent accurate.

Where a recipient requests your location, all satellites in the constellation start transmitting data, and the recipient is presented with trustworthy data after calculating the time difference in the different regions. In addition, GPS satellites have onboard atomic clocks. In this way, you can provide precise time wherever you are.

Remote Sensing Satellite

The Remote Sensing Satellite is not a new concept. Since 1962 it has been around. It is the practice of non-intrusive emission of radio waves, to detect an object’s position on Earth without being near that object.

Remote sensing has undergone a huge transformation since its inception. it can now be performed using optical and radio waves. Sensing includes data collection, processing in-orbit, storage, transmission, calibration, and much more.

Remote sensing satellites can orbit or concentrate on a particular area of our planet. It has sensors that help spacecraft to capture images from selected Earth regions. In addition, most satellites use the SARS system to provide accurate remote sensing data.

We now have our smartphones to use data from remote sensing. Prior to this, scientists had to combine and stitch images captured by multiple satellites. Moreover, most of the pictures were black and white.

Overall, space is closer than most of us think, because many day-to-day activities depend on satellite data. Space technology will soon become even more essential as our technology continues to advance.

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