Viewing archive of Friday, 24 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 24 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 144 Issued at 0245Z on 24 May 2002 This report is compiled from data received at SWO on 23 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0911 0911 0912                       220
1602 1602 1602                       510
B. Proton Events
A greater than 10 MeV proton event continues in progress. The event began at 22/1755 UTC, reached a maximum of 820 PFU at 23/1055 UTC and was at 18.5 PFU at the end of the day.
C. Geomagnetic Activity Summary
The geomagnetic field ranged from quiet to severe storm levels. Two sudden impulses were observed: the first at 1051 UTC measured 87 nT in Boulder and the second at 1545 UTC measured 26 nT in Boulder.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 180  SSN 229  Afr/Ap 045/054   X-ray Background B5.8
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.6e+08   GT 10 MeV 6.8e+06 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.20e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 3 2 5 6 7 4 3 Planetary 3 3 2 5 7 7 5 3
F. Comments

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