Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
10 cm 068 SSN 012 Afr/Ap 005/004 X-ray Background A6.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.1e+05 GT 10 MeV 2.1e+04 p/(cm2-ster-day) (GOES-15 satellite synchronous orbit W128 degrees) Daily Electron Fluence GT 2 MeV 4.30e+05 e/(cm2-ster-day) (GOES-15 satellite synchronous orbit W128 degrees) 3 Hour K-indices Boulder ? ? ? ? ? 0 1 1 Planetary 1 0 0 1 1 1 1 2
Boulder magnetometer was offline through 1500 UTC. Service was restored for the 1800 UTC synoptic period.
All times in UTC
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M1.5 |
| 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 | 160.6 +68.8 |
| Last 30 days | 108.7 +12.8 |