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 2024 May 17 0245 UTCBegin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0750 0804 0810 3685 M1.0 100
10 cm 207 SSN 208 Afr/Ap 019/028 X-ray Background C2.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.1e+07 GT 10 MeV 1.0e+06 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 7.30e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 4 5 5 4 3 2 1 Planetary 2 4 6 5 4 3 3 2
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Last X-flare | 2024/05/15 | X2.9 |
Last M-flare | 2024/05/17 | M7.1 |
Last geomagnetic storm | 2024/05/17 | Kp6 (G2) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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April 2024 | 136.5 +31.6 |
May 2024 | 157.2 +20.7 |
Last 30 days | 174.3 +64.2 |