China launches observation satellite Gaofen-4
Q. Which earth observation satellite was launched by China on 29th December 2015?- Published on 30 Dec 15a. Jaofen-2
b. Gaofen-4
c. Gaofen-3
d. Jaofen-5
ANSWER: Gaofen-4
Gaofen-4 Earth observation satellite China on 29 December 2015 successfully launched Gaofen-4 Earth observation satellite toward a geostationary orbit from the Xichang Satellite Launch Centre in the south-western province of Sichuan aboard a Long March-3B carrier rocket. Launched as a part of the China High-resolution Earth Observation System (CHEOS), Gaofen-4 is located at the orbit 36000 kilometres away from the earth and moves synchronously with the earth. 7 high definition satellites have been targeted by 2020 by China.