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 Jan 21 0245 UTCBegin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0733 0733 0733 100 2155 2155 2156 150 2353 2353 2353 110
10 cm 230 SSN 277 Afr/Ap 013/015 X-ray Background C1.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.8e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 3.10e+07 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 3 2 5 3 3 2 Planetary 3 3 2 2 5 3 3 2
None.
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Last X-flare | 2025/01/04 | X1.85 |
Last M-flare | 2025/01/22 | M1.3 |
Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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December 2024 | 154.5 +2 |
January 2025 | 145.2 -9.3 |
Last 30 days | 163.2 +45.8 |