Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0813 0823 0830 3753 N11W67 M3.2 1f 1600 1600 1600 120 1647 1647 1647 110 1702 1702 1702 130 1753 1806 1825 3751 S10E03 M2.0 2n 220 2244 2251 2306 3758 M1.0
10 cm 202 SSN 269 Afr/Ap 005/006 X-ray Background C2.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.5e+05 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 9.30e+05 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder ? ? ? ? ? ? ? ? Planetary 1 1 2 1 1 2 2 3
BOU magnetometer experiencing issues.
All times in UTC
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M2.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |