How many satellites does the GPS system typically have in operations?

The correct answer is based on the standard operational configuration of the Global Positioning System (GPS). The GPS system is designed to have at least 24 satellites in orbit to provide continuous, reliable coverage for users around the world. While there may be more satellites in operation at any given time, the minimum number required to ensure global coverage and accurate positioning is 24.

This configuration allows users to receive signals from at least four satellites simultaneously, which is necessary for determining three-dimensional positions (latitude, longitude, and altitude). Each satellite transmits a unique signal and orbital information, which GPS receivers use to calculate their position through trilateration. Having 24 satellites ensures that there are always enough satellites available for users, even as some satellites are taken off line for maintenance or if there are any technical issues.

The other options suggest fewer or more satellites than what is typically in active operation for standard GPS functionality. While 22 satellites may work for partial coverage, 26 and 28 exceed the established operational need, although the actual number of satellites in orbit can fluctuate due to various factors like maintenance and upgrades.