Earth Observation satellites
- Earth observation satellites are satellites equipped with remote sensing technology.
- Earth observation is the gathering of information about Earth’s physical, chemical and biological systems.
- Many earth observation satellites have been employed on sun-synchronous orbit.
- The first EOS or remote sensing satellite was Sputnik 1, the first artificial satellite sent to Earth’s orbit by the Soviet Union in 1957.
- It was used to study the topmost layer of Earth’s atmosphere, the ionosphere.
- Most EOS operate at about 500 to 600 kilometres from the surface of the Earth.
Applications of Earth Observation satellites
- These satellites can be used for various purposes, including environmental monitoring, cartography, navigation and more.
- The military of different countries also uses the Earth observation satellite for spying and communication.
- The most common example of applications of EOS is the images of Earth, or the view available in a popular Earth discovery application called Google Earth.
- 20 April 2023:
- The Indian Space Research Organisation (ISRO) will launch Singapore’s TeLEOS-2 satellite, an earth observation satellite.
- The launch will be carried out by the Polar Satellite Launch Vehicle (PSLV).