Improved orbital dynamics and positioning methods for the Argos satellite-based data collection and location system

There are many applications in the marine environment involving research, monitoring, and protection which rely on the Argos System for data telemetry and geographic positioning. The system has been used extensively to measure key environmental parameters from autonomous platforms, typically in remote locations. For example, Argos has been used to determine ocean currents by tracking the movement of drifting buoys, which also report measurements such as sea surface temperature and barometric pressure. In an environmental protection role, the system is used to track the movement of fishing vessels, cargo shipments, and hazardous materials