Primaradio.co.id – The use of satellites can basically be different depending on the type. That is on satellite natural and artificial, even in the future it will be further divided into several types that have different functions.
Also read: What is the speed of the satellite’s orbit above the earth? Here’s the answer!
Previously, natural satellites were those that already existed in the solar system, for example the moon. Formed generally accompanies the formation of planets, has several functions. Included in controlling the planet’s rotation speed due to gravity.
While artificial satellites are human creations, aiming to facilitate various activities. For example as a place for research, navigation, weather forecasting, military purposes, and several others which we discuss in detail below.
Useful to Facilitate Human Activities, These are 11 Uses of Artificial Satellites
Both natural and artificial, the satellite itself is an object in space whose rotation follows the earth’s rotation. The launch of this object uses the help of a rocket to get into orbit.
Various developed countries already have stations functioning as satellite launches into orbit, for example in Russia, the United States, to China. Its own functions vary, including in mapping, communication, research, to military monitoring.
Navigation
The first use of the satellite is to meet the needs of navigation. For example when determining the direction of the aircraft in flight. Included is also useful for monitoring the position of the aircraft by the flight station.
Later it can become a radio signal, then channel it to a receiver on the ground. So that it can help determine a point on the surface of the earth. For example to show the position of something on a digital map.
Study
The launch itself chose the function of one of them in meeting research needs. Both researching about the earth, as well as space-related research. For example, there is SOHO which is useful for studying the sun.
Another example of the use of satellites for research is South Korea’s Danuri. Functioning to take photos of the earth from space, this Danuri managed to send black-and-white pictures of the earth and the moon.
Mapping
Its function also includes helping humans to map the distribution of natural resources (natural resources) in the bowels of the earth. For example for mining purposes, the results will later meet human daily needs.
Another example is from land mapping to topography on various scales, small to large. An example is IKONOS which functions to carry out topographical mapping on a small to medium scale.
Communication
The next use of the satellite is as a communication system, because it can forward telephone communication signals around the world. Previously the forwarding communication signal could only occur in a straight line, not even being able to pass through tall buildings.
However, after the emergence of satellites, communication can take place in a wide range of locations. Because the satellites help transmit signals, from one region to another in the earth.
Weather forecast
In the process of predicting the weather, it is necessary to study various factors in advance. One means to obtain this information is to use this technology. For example, it is useful to measure gases in the atmosphere.
In addition, the use of satellites related to weather forecasts is to monitor clouds from outside the earth. Because the predictions occur directly or in real time, the accuracy is somewhat higher.
Military
As a form of defense, the military needs objects orbiting the earth. For example a country needs it to monitor the opponent’s territory. It can even function to send data and information related to military interests.
The first official military satellite program existed in the 1950s, primarily as reconnaissance. However, as time progresses, the large number makes it impossible to identify the exact number.
For example, in December 2018, there were at least 320 satellites used for military purposes. About half, the countries that own it are the US, China, Russia, and India.
Pollution Monitoring
Various projects have emerged in an effort to build a satellite network that can help experts monitor pollution, especially air pollution. One of them is Sentinel-1A, which was launched in April 2014.
Its functions include providing environmental and security data at a global level. Another example is the one NASA launched in North America. TEMPO is able to measure pollution levels, then identify the source accurately.
Forest Fire Monitoring
Furthermore, the use of artificial satellites is to monitor disasters, one of which is forest fires. Through it, hotspots that appear in the depths can be detected easily thereby speeding up the extinguishing.
In Indonesia, the BMKG said that at least 9 satellites are needed to improve early detection of disasters in the country. This monitoring breakthrough can be useful as a multi-disaster mitigation, for example floods, landslides, to eruptions.
Exploration
In relation to the exploration of natural resources, many large countries have the ambition to do so by exploiting the vastness of the solar system. The use of satellites can help for exploration, both directly and indirectly.
For example, in determining geothermal prospect areas, you can use the results of analysis of Landsat imagery. The results of the analysis are able to interpret the alignment patterns and geomorphological units from a visual perspective.
2023-08-17 08:42:13
#Artificial #Satellites #Navigation #Military #Purposes
