1. A system comprising: a speed sensor configured to output speed data representative of a measured speed at which a powered system is traveling at a location; a position determination device configured to output location data representative of a measured position of the powered system at the location; and at least one controller configured to determine a location estimation of the powered system based on a speed-based distance estimation and a position-based distance estimation of the powered system from one or more reference points, the speed-based distance estimation based at least in part on the measured speed and the position-based distance estimation based at least in part on the measured position, and the at least one controller is configured to determine a quality value of the location estimation that is based at least in part on the location estimation and the measured position of the powered system, wherein the powered system is a rail vehicle consist comprising at least one rail vehicle having the speed sensor, the position determination device, and the at least one controller.