The satellites are arranged in three equally spaced orbital planes, inclined at an angle of 56 degrees to the equator, with eight active satellites in each plane and two spares. The structure of the Galileo constellation ensures that users worldwide will have access to at least four satellites at all times, allowing for accurate positioning through the signals broadcast by the satellites. The Galileo system is interoperable with other GNSS systems like GPS, GLONASS, and BeiDou, enhancing coverage and accuracy for multi-constellation users globally