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Per NASA, “DSCOVR is a partnership between NOAA, NASA and the U.S. Air Force. DSCOVR will maintain the nation’s solar wind observations, which are critical to the accuracy and lead time of NOAA’s space weather alerts, forecasts, and warnings. Space weather events like geomagnetic storms, caused by changes in solar wind, can affect public infrastructure systems such as power grids, telecommunications systems, and aircraft avionics. DSCOVR will succeed NASA’s Advanced Composition Explorer in supporting solar observations and provide 15 to 60 minute warning time to improve predictions of geomagnetic storm impact locations.”