Viewing archive of Friday, 31 May 2002

Geophysical report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2002 May 31 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 151 Issued at 0245Z on 31 May 2002 This report is compiled from data received at SWO on 30 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0424 0532 0613  9957        M1.3
1711 1724 1739  9973 S16E49 M1.6  Sf
2356 2356 2357                       130
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to unsettled levels. The Advanced Composition Explorer (ACE) satellite hinted that a weak shock passage occurred at approximately 30/0030 UTC, with unsettled conditions following. This was believed to be from the disappearing filament from 27 May.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 180  SSN 190  Afr/Ap 008/009   X-ray Background B9.7
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.3e+05   GT 10 MeV 1.4e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.50e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 1 2 2 3 2 2 2 Planetary 2 1 3 3 3 3 2 2
F. Comments
  None

All times in UTC

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