Japan launches 4th GPS-improving quasi-zenith satellite

Japan on Tuesday successfully launched into orbit its fourth and final quasi-zenith satellite, aiming at creating a new system to improve the accuracy of global positioning data for a range of applications, including smartphones and vehicle navigation systems.The satellite will work with three previously launched Michibiki satellites and the U.S. satellite network to provide more precise global positioning system services from fiscal 2018.An H-2A rocket carrying the Michibiki No. 4 satellite lifted off at around 7 a.m. from the Tanegashima Space Center in Kagoshima Prefecture, southwestern …READ FULL ARTICLE