Activity summary of the solar and geophysical activity

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 2025 Dec 04 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 338 Issued at 0245Z on 04 Dec 2025 This report is compiled from data received at SWO on 03 Dec
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0059 0059 0059                       160                           
 0120 0131 0136  4299 N24E44 C4.1  Sf 1700                          
 0139 0139 0139                       240                           
 0149 0153 0155                       4600                          
 0216 0223 0226  4297        C2.7     160                           
 0216 0216 0216                       140                           
 0246 0246 0246                       160                           
 0329 0329 0329                       440                           
 0519 0519 0519                       330                           
 0532 0532 0532                       2600                          
 0646 0646 0646                       23000                         
 1008 1008 1008                       280                           
 1404 1409 1411              C3.8     1200                          
 2327 2327 2327                       140                           
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached strong storm levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 209  SSN 227  Afr/Ap 020/033   X-ray Background C1.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 4.2e+06   GT 10 MeV 1.6e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 1.20e+08 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 2 2 5 5 4 5 4 Planetary 2 3 2 3 5 4 7 5 
F. Comments
  None

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