Viewing archive of Tuesday, 20 January 2026

Geophysical report

Joint USAF/NOAA Solar and Geophysical Activity Summary

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0124 0124 0124                       170                           
 0213 0213 0213                       100                           
 0335 0335 0335                       100                           
 0830 0830 0830                       220                           
 1014 1014 1014                       140                           
 1109 1119 1122  4345        M1.1                                   

B. Proton Events

C. Geomagnetic Activity Summary

D. Stratwarm

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

10 cm 173  SSN 162  Afr/Ap 064/073   X-ray Background C1.8
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.8e+09   GT 10 MeV 2.8e+08 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 1.90e+08 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 2 1 1 2 4 9 9 Planetary 3 2 1 1 1 3 8 9 

F. Comments

  The geomagnetic field reached 9m which is considered
severe levels.

All times in UTC

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