After destroying the low-orbiting satellite on 300km distance from earth during a missile test, India on Wednesday joined the space "super league". 
However, three countries of the world- the US, Russia, and China had this achievement. India has emerged as the fourth one. 


"In the journey of every nation there are moments that bring utmost pride and have a historic impact on generations to come. 

One such moment is today.

India has successfully tested the Anti-Satellite (ASAT) Missile. Congratulations to everyone on the success of #MissionShakti,"
— Chowkidar Narendra Modi (@narendramodi) March 27, 2019,” tweeted Prime Minister Narendra Modi


What is Low Earth Orbit? 
Low Earth Orbit or LEO refers to satellite systems used in telecommunication. It is an Earth-centered orbit with an altitude of 2,000 km. 
LEO is used mainly for data communication such as email, video conferencing and paging. According to Kepler's third law, this corresponds to a semi-major axis of 8,413 km (5,228 mi).
 
Why LEO is used?
LEO provides high bandwidth and low communication latency. It requires the lowest amount of energy for satellite placement.


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