How many satellites are in the GPS constellation?

The Global Positioning System (GPS) constellation typically consists of 24 satellites as its minimum operational capability. This configuration ensures that users on the ground can have access to signals from at least four satellites at any given time, which is necessary to obtain accurate position fixes.

While there may occasionally be more than 24 satellites in orbit due to replacement and maintenance efforts, 24 is the standard number that provides complete coverage and enables reliable positioning, navigation, and timing services worldwide. This standard was established to optimize the network's performance against factors such as satellite failure and to maintain accuracy across various geographic locations.