NASA's Ion Thruster Expertise Sustains Satellite Operations

In the ongoing battle against atmospheric drag in low Earth orbit, which gradually degrades satellite trajectories, the emergence of ion thrusters presents a significant improvement in space navigation. Unlike traditional propulsion systems that utilize bulky and costly chemical propellants, ion thrusters offer a lighter, more economical alternative for adjusting satellite orbits.

Established in 2016, Orbion Space Technology in Houghton, Michigan, aimed to innovate the satellite industry by extending operational lifespans or enhancing payload capacities of orbiting satellites. The pursuit led to the development of the Aurora thruster, designed for high efficiency and low fuel consumption.

Hall-effect thrusters, a sophisticated ion propulsion technology, operate on electrical power instead of chemical processes. The transition from an experimental phase to regular application in various space missions marks a significant achievement for Orbion. Collaboration with NASA's Glenn Research Center in Cleveland was crucial, where Orbion accessed vital data under a Data Usage Agreement and obtained a non-exclusive evaluation license for ion thruster technology.

The partnership was instrumental due to NASA Glenn's expertise in ion thruster materials research and the development of a cathode heater that enhances the electrical efficiency and longevity of these thrusters. Consequently, Orbion's Aurora thrusters now rival those developed by NASA for its deep space missions. The company has successfully marketed the Aurora thrusters, securing contracts from both governmental and private entities, most recently for a new constellation of Earth-observing satellites.

More at Spinoff: Ion Thrusters Keep Satellites Going and Going