China launches HD earth observation satellite

China on Tuesday launched its most sophisticated observation satellite, Gaofen-4, as part of the country’s high-definition earth observation project.

Gaofen-4 was launched from Xichang in the southwestern province of Sichuan just after midnight aboard a Long March-3B carrier rocket.

It’s China’s first geosynchronous orbit HD optical imaging satellite and the world’s most sophisticated HD geosynchronous orbit remote sensing satellite.

It will be used for disaster prevention and relief, surveillance of geological disasters and forest disasters, and meteorologic forecast.

The Gaofen project aims to launch seven high-definition observation satellites before 2020.

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