Latest Monthly SSN
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Latest Smoothed SSN
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— · trails ~6 months
Predicted Remaining Peak
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Cycle 25 Age
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since minimum
Sunspot Number — Cycle 24 & 25 observed vs. Cycle 25 prediction
F10.7 Radio Flux — observed vs. prediction
Observed: SILSO monthly mean sunspot number + Penticton F10.7 via NOAA SWPC. Prediction: official NOAA/NASA Solar Cycle 25 panel, with the shaded band as the stated uncertainty range.