Solar Dynamics Observatory. News and information about meteor showers, solar flares, auroras, and near-Earth asteroids. NASA UPGRADES 2012 SOLAR STORM WARNING - LEARN HOW TO PREPARE. Space weather station. This data is measured by two GOES satellites which monitors Solar X-Rays.
This information is very important in tracking solar flares. Large X-ray bursts cause short wave fades for HF propagation paths through the sunlit hemisphere. Solar flares can also trigger geomagnetic storms which produce aurora and nice openings on VHF.