China launches classified space debris mitigation technology satellite

• China has successfully launched a new satellite to test and verify methods for reducing space debris. The satellite was launched from the Xichang Satellite Launch Center in Sichuan Province, southwest China.
• Shijian-21, the satellite, was launched with the help of a Long March-3B carrier rocket and successfully entered its intended orbit.
• Shijian ("practise") satellites are satellites that demonstrate technology in general. Shijian-17 is an experimental communication and broadcast satellite that was launched in 2016 by the first Long March 5 heavy-lift rocket.
• It also carried out rendezvous and proximity operations in geostationary orbit.

Important Facts 

About satellite 

• A satellite is a moon, planet or machine that orbits a planet or star. Earth and the moon are examples of natural satellites.
• Height of Satellite above the earth surface: 36000 km.
• India's first satellite: Aryabhatta (19 April, 1975)
• India's first pico-satellite: StudSat