Viewing archive of Friday, 19 December 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Dec 19 0305 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 353 Issued at 0245Z on 19 Dec 2025 This report is compiled from data received at SWO on 18 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
Field conditions were at quiet to
active levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 116 SSN 087 Afr/Ap 011/017 X-ray Background B4.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.0e+06 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 8.00e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 4 2 5 3 2 3 2 2 Planetary 4 3 4 3 2 3 3 3
F. Comments
None
All times in UTC
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| Last M-flare | 2026/02/03 | M1.7 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
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