The PDA / HUD can determine the direction and distance of signals and beacons, but because there is no GPS constellation to show where you are, a castaway (or a certain unaffiliated rogue explorer) might have to plot locations themselves to put them on a map. Learning to survive when a planet has no GPS satellitesĪlterra put some observation satellites around Planet 4546B, but it doesn’t maintain a constellation of public GPS satellites (4546B is a remote rock that normally has nobody on it).
