Chapter 3: GNSS constellations

“The dinosaurs became extinct because they didn’t have a space program.”

Figure 27 Launch of Galileo satellite
Figure 27 Launch of Galileo satellite (European Space Agency)

Larry Niven is suggesting that if the dinosaurs had had a space program, they could have intercepted and deflected the asteroid that may have led to their extinction.

Unlike the dinosaurs, several countries now have existing or planned space programs that include the implementation of national or regional GNSS. In this chapter, we will provide an overview of these systems.


Chapter 3: GNSS constellations