Daily sunspot number (yellow), monthly mean sunspot number (blue), smoothed monthly sunspot number (red) for the last 13 years and 12-month ahead predictions of the monthly smoothed sunspot number:
SC (red dots) : prediction method based on an interpolation of Waldmeier’s standard curves; It is only based on the sunspot number series.
CM (red dashes) : method (from K. Denkmayr and P. Cugnon) combining a regression technique applied to the sunspot number series with the aa geomagnetic index used as a precursor (improved predictions during the minimum phase between solar cycles).
The Daily Mail reports that 22-year-old Radoslaw Karwacki received the recent amateur radio Slow Scan Television (SSTV) transmissions from the ISS Radoslaw (Radek) used an RTL-SDR dongle costing about £10 ($15) to receive the SSTV signal on... Read more
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