Viewing archive of Tuesday, 20 August 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 Aug 20 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 232 Issued at 0245Z on 20 Aug 2002 This report is compiled from data received at SWO on 19 Aug
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0423 0000 1345                                        IV
1028 1034 1038  0069 S12W25 M2.0  Sf 1400   77
1427 1446 1459  0069 S13W30 C9.5  Sf 170    48
1947 1948 1948                       460
2056 2102 2106  0069 S11W33 M3.1  1b 220    21
2303 0000 0953                                        IV
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at unsettled to minor storming levels. Minor storming occurred early in the summary period. A sustained northern Bz began at around 19/0800 UTC bringing unsettled to active conditions.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 237  SSN 247  Afr/Ap 022/027   X-ray Background C1.7
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.7e+07   GT 10 MeV 1.6e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.20e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 3 5 3 3 4 3 3 Planetary 4 4 5 4 4 3 4 4
F. Comments
  None

All times in UTC

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