At this point, 18 of the planned 30 satellites are already in orbit.
在一般的使用下精確度可以到 4 公尺，相較於 GPS 是 15 公尺高出不少：
Using GPS, private users can navigate with a precision of up to 15 meters (m). Galileo offers a precision of up to 4m for its fully open service.
Commercial users and official government services can even receive a precision of a few centimeters. This is important, for example, for fully or partially automated planes, cars or ships.