What satellites does the navigation constellation include?

The navigation constellation consists of 24 satellites, of which 2 1 satellite is the working star and 3 are the backup stars. They are evenly distributed on six tracks, with a track height of about 20,000 kilometers, an inclination of 55, and a running period of 12 hours. This kind of satellite distribution can ensure that users anywhere on the earth can realize accurate positioning of three-dimensional coordinates at any time.