Geostationary Operational Environmental Satellites—R Series

A collaborative NOAA & NASA program

Data Products: Solar Flux: X-ray

SWPC’s current GOES XRS product. The GOES-R X-ray flux product is similar, but with increased dynamic range to capture the largest flares.flares.

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.