A LM-3B/Yuanzheng 1 launch vehicle blasted-off at20:29 Beijing time on July 25 from the Xichang Satellite Launch Center,carrying the 18th and19th BeiDou navigation satellites into orbits.After an 800-second flight,the upper stage with two satellites onboard separated from the core stages and continued its journey.The satellites and the upper stage separated successfully at 0:05 Beijing time on July 26 and precisely entered their own orbits.Half an hour later,two satellites deployed their solar array panels as scheduled.The launch was announced a success. A LM-3B / Yuanzheng 1 launch vehicle blasted-off at20: 29 Beijing time on July 25 from the Xichang Satellite Launch Center, carrying the 18th and 19th BeiDou navigation satellites into orbits. After an 800-second flight, the upper stage with two satellites onboard separated from the core stages and continued its journey. The satellite and the upper stage separated successfully at 0:05 Beijing time on July 26 and ensured their own orbits. Half an hour later, two satellites deployed their solar array panels as scheduled. The launch was announced a success.