Below you'll find a daily report brought to you by the NOAA about the solar activity and geophysical activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Solar and Geophysical Activity Summary 2025 Mar 24 0245 UTCBegin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0258 0258 0258 190
10 cm 168 SSN 110 Afr/Ap 009/012 X-ray Background C1.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.0e+05 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 9.20e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 4 2 3 3 2 2 Planetary 3 2 4 2 3 3 2 2
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Last X-flare | 2025/02/23 | X2.0 |
Last M-flare | 2025/03/21 | M1.2 |
Last geomagnetic storm | 2025/03/22 | Kp6- (G2) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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February 2025 | 154.6 +17.6 |
March 2025 | 138.3 -16.4 |
Last 30 days | 136.1 -18.1 |