Geophysical report

Viewing archive of Tuesday, 26 May 2026

Solar and Geophysical Activity Summary 2026 May 26 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 146 Issued at 0245Z on 26 May 2026 This report is compiled from data received at SWO on 25 May

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0309 0309 0309                       100                           
 0641 0653 0707  4447 S16E21 C1.7  Sf 100                           
 0825 0825 0825                       190                           
 0859 0859 0859                       680                           
 0902 0902 0904                       160                           
 0913 0913 0913                       120                           
 0920 0920 0920                       110                           
 1150 1150 1150                       160                           
 1326 1326 1326                       100                           
 1857 1857 1858                       120                           
 1903 1903 1903                       170

B. Proton Events

The greater than 10 MeV flux reached threshold level at 26/0010Z.

C. Geomagnetic Activity Summary

The geomagnetic field reached unsettled levels

D. Stratwarm

Not available

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

10 cm 139  SSN 132  Afr/Ap 008/008   X-ray Background B9.4
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.3e+06   GT 10 MeV 3.5e+04 p/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W72 degrees)
Daily Electron Fluence
GT 2 MeV 1.40e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W72 degrees)
3 Hour K-indices
Boulder 3 3 1 2 3 3 2 2 Planetary 3 2 2 2 2 2 2 3

F. Comments

  None

All times in UTC

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Space weather facts

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This day in history*

Solar flares
1	2002	X2.61
2	2023	M5.7
3	2000	M4.77
4	2000	M4.39
5	2002	M3.24

		Dst	G
1	1959	-183	G4
2	1961	-105	G4
3	1980	-80	G3
4	1991	-78	G1
5	1982	-73	G1

*since 1994

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