Implementation of a Real-Time Operating System on a Small Satellite Platform

The implementation of a real-time operating system for a small satellite project has an extensive list of pros and cons. A real time operating system’s multithreaded structure allows for the ability to design a complex software system with more flight capabilities and configuration options to support the success of mission goals. The increase in versatility and flexibility comes with the price of increased risk of critical errors, such as memory leaks, scheduling latency, and message queue concurrency. The following discussion will explore the real-time software architecture of the Drag and Atmospheric Neutral Density Explorer, and the benefits and major issues experienced during the final integration and testing of this system.