This plot provides a look at the progression of the solar cycle over the past year. Two parameters are plotted: the daily effective SSN (solid line) based on analysis of ionospheric foF2 data, and the daily F10.7 SSN based on the observed Penticton 10.7cm solar radio flux. The foF2 and 10.7cm solar flux data used in these calculations were obtained from the NOAA SWPC. The horizontal solid and dashed lines are the official prediction for the maximum smoothed sunspot number provided by the SWPC, predicted to occur during November 2013. The solid line is the predicted value, and the dashed lines are the "LOW" and "HIGH" values from the prediction. Note that the predictions are for the 13-month smoothed sunspot number, and the data plotted here are daily values. A comparison with smoothed effective sunspot number can be found here.
Please note that the SSNe values plotted here were calculated in near real-time from a limited data set. If you are interested in post-analysis SSNe values calculated from a more representative data set, please contact NWRA.
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