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Federal
GOES Solar X-Ray Imager (SXI) L0 & L1b data from SWPC
National Oceanic and Atmospheric Administration, Department of Commerce —
The Solar X-Ray Imager (SXI) instrument onboard GOES 12-15 is an X-ray telescope used for the early detection of solar flares, coronal mass ejections, and space... -
Federal
Solar Geophysical Data (SGD) Reports (1955-2009)
National Oceanic and Atmospheric Administration, Department of Commerce —
Solar-Geophysical Data (SGD) reports were a comprehensive compilation of many different kinds of observational data of the sun's activity and its effects on the...