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Geophysical report

Solar and Geophysical Activity Summary 2025 Apr 17 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 107 Issued at 0245Z on 17 Apr 2025 This report is compiled from data received at SWO on 16 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0749 0749 0749                       110                           
 0837 0837 0837                       100                           
 1342 1342 1342                       100                           
 1820 1820 1820                       110                           
 1832 1832 1832                       160                           
 1840 1840 1840                       110                           
 2009 2009 2009                       170                           
 2047 2047 2047                       110                           
 2148 2148 2149                       190                           
 2233 2233 2233                       110                           
 2341 2354 0006  4062        C3.1     800                           
 2341 2341 2341                       2000                          
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from minor to strong levels with an isolated G4 (severe) period.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 148  SSN 070  Afr/Ap 043/???   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.3e+06   GT 10 MeV 1.4e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 1.10e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 5 3 3 3 5 6 6 6 Planetary 5 3 3 5 7 6 8 5 
F. Comments
  None

All times in UTC

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