Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0018 0035 0044 0039 S11E03 M2.3 Sf 100 0112 0116 0118 C5.3 100 1101 1106 1110 0039 S14E00 C7.6 Sf 1900 1725 1725 1725 1800 2258 2312 2324 M2.2
10 cm 239 SSN 300 Afr/Ap 010/012 X-ray Background C1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.8e+06 GT 10 MeV 3.0e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.70e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 2 2 2 3 2 2 Planetary 4 3 2 3 3 3 3 2
Afr estimated based on Boulder USGS magnetometer data.
All times in UTC
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| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 139.3 +26.7 |
| Last 30 days | 124.9 +18 |