|ips-ssn-predictions -- Observed and Predicted Solar Indices
A table of observed, estimated and predicted values for the smoothed sunspot number. Usually issued soon after the start of each calendar month. The observed international monthly mean sunspot number is issued by SILSO, Royal Observatory of Belgium, Brussels. The monthly data are smoothed and merged with a Space Weather Services predicted solar cycle. These observed monthly mean and 12 month smoothed data are available at the SWS Solar Section - monthly sunspot numbers.
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