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NOAA WDCA Magnetic Indices and Sunspots, 1932-1981Jun
This dataset contains basic solar data received from World Data Center A and includes sunspot indices and sunspot number. Data are available from January 1932 to June 1981.- dataset ASCII
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NGDC Sunspots and 10.7 cm Flux
This dataset contains daily and monthly sunspot numbers for various periods between 1749 and 1992 and daily and monthly solar flux from 1947. The most current data should be...- dataset ASCII
