The standard GPS constellation consists of 24 satellites in 6 orbital planes. The planes are separated 60 degrees with an orbit inclination of 55 degrees. In each plane, the satellites are separated by 30, 105, 120, and 105 degrees.

Since this is somewhat difficult to visualize in 2D, I created this 3D model. The satellites in each plane are in the same position (which is not how it is in reality), but you can easily change that. One could also add the extra satellites, as the GPS constellation currently consists of 31 active satellites.

Supports required for proper printing.