Data Products: Solar Flux: X-ray
The GOES-R Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) measures light from the sun. The NOAA Space Weather Prediction Center (SWPC) relies on this product to issue warnings when there are large increases in solar X-ray output from solar flares. These X-ray flares cause changes in the ionosphere and are used by SWPC to give warnings of radio blackouts of terrestrial high frequency (HF) radio communications.