A system for determining the position of a drifting buoy through use of the Navy Navigation Satellite is described. The system consists of a receiver that tracks satellites of the Navy Navigation Satellite System, a data link for transmission of the collected data to shore, and appropriate computer software. To aid the reader in understanding the concept, both the Navy Navigation System and the method of determining one's position through use of this system are described in some detail. The receiver, which is specifically designed for the buoy application, is described, and the computer software required for converting the data collected by the receiver to position data is briefly outlined.