The concept of an automated, unattended ground system for low-cost tracking of near-Earth missions has been validated by the successful demonstration of a telemetry receive-only terminal that tracked two NASA spacecraft-of-opportunity in low Earth orbit. The terminal receives, processes, and distributes telemetry data to principal investigators without operator intervention. The validated Low Earth Orbiter Demonstration (LEO-D) terminal is designed around commercial off-the-shelf subsystems and is now available as a low-cost turnkey product from a commercial vendor.