Pyxis employs satellite weather sensor technology capable of penetrating through clouds and storms to produce calibrated data required for accurate weather forecasting, climate monitoring, and space weather prediction. Using GPS Radio Occultation (GPS-RO), this weather instrument tracks GPS signals traveling through Earth's atmosphere and converts them into measurements of global temperature, pressure, and water vapor. System can track signals from GPS, Galileo, Beidou, and GLONASS.