Ionospheric Occultation Experiment

The Ionospheric Occultation Experiment (IOX) uses a dual frequency Global Positioning System (GPS) receiver to measure ionospheric properties, an ionosphere remote sensing satellite package. IOX demonstrates remote sensing techniques for future United States Department of Defense space systems and helps to improve operational models for ionospheric and thermospheric forecasts.

IOX was developed by the United States Air Force Space and Missile Systems Center and is one of four experiment packages on PicoSAT.