Viewing archive of Wednesday, 18 March 2026

Geophysical report

Joint USAF/NOAA Solar and Geophysical Activity Summary

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0855 0904 0909  4392 S14E12 M1.3  Sn 110                           
 0933 0933 0933                       100                           
 1907 1908 1908                       250                           
 1916 1916 1916                       100                           

B. Proton Events

C. Geomagnetic Activity Summary

D. Stratwarm

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

10 cm 111  SSN 072  Afr/Ap 004/004   X-ray Background B3.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.6e+05   GT 10 MeV 1.6e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 8.50e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 2 1 2 1 2 1 1 Planetary 2 1 1 2 1 0 1 1 

F. Comments

  None.

All times in UTC

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