Viewing archive of Tuesday, 17 February 2026

Geophysical report

Joint USAF/NOAA Solar and Geophysical Activity Summary

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0157 0157 0159                       130                           
 0249 0249 0249                       440                           
 0302 0302 0302                       650                           
 0403 0435 0500              M2.4                                   
 0610 0610 0611                       150                           
 0745 0745 0745                       1100                          
 1217 1217 1217                       130                           
 1256 1256 1256                       120                           
 1856 1858 1858                       290                           
 1953 1953 1953                       250                           
 1959 1959 1959                       140                           
 2002 2002 2003                       370                           

B. Proton Events

C. Geomagnetic Activity Summary

D. Stratwarm

E. Daily Indices: (real-time preliminary/estimated values)

10 cm 118  SSN 069  Afr/Ap 023/029   X-ray Background B4.4
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.5e+06   GT 10 MeV 1.5e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 4.40e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 4 4 4 2 4 5 1 Planetary 4 4 4 3 2 4 6 3 

F. Comments

  None.

All times in UTC

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