China launched a satellite to support its global navigation and positioning network at 11:30 p.m. local time on Sunday.The satellite, launched from the Xichang Satellite Launch Centre in southwest China's Sichuan Province, was taken into orbit by a Long March-3C carrier rocket, Xinhua reported.It is the 23rd satellite in the BeiDou Navigation Satellite System (BDS), which is being developed as an alternative to US GPS.It was the 229th launch of the Long March carrier rocket.The satellite, after entering its designed work orbit and finishing in-orbit testing, will join others already in orbit and improve the stability of the system, preparing for BDS to offer global coverage.