How many satellites are required to determine latitude and longitude coordinates?

To determine precise latitude and longitude coordinates using satellite systems, a minimum of four satellites is typically required. This is because two satellites can provide the necessary positional data for a 2D location (latitude and longitude), but they cannot account for altitude, which is where the third dimension comes into play. Consequently, a third satellite allows for the calculation of altitude, while a fourth satellite enhances the accuracy of the positioning by correcting for timing errors in the receiver.

Thus, achieving a reliable fix for both coordinates and altitude typically necessitates the use of at least four satellites in a Global Navigation Satellite System (GNSS). Therefore, the correct response emphasizes the necessity of four satellites to obtain complete and accurate geolocation data.