China launches twin navigation satellites against rival US GPS system
BEIJING - China successfully launched twin BeiDou-3 navigation satellites into space on Monday to strengthen its satellite navigation network being built to rival the US' Global Positioning System (GPS).
The satellites were launched from a Long March-3B carrier rocket from Xichang Satellite Launch Centre in Sichuan province.
The satellites entered their planned orbit after flying for over three hours, and will work with the 14 BeiDou-3 satellites already in orbit.
The satellites are the 39th and 40th of the BeiDou navigation system, and the 15th and 16th of the BeiDou-3 family.