Viewing archive of Saturday, 7 September 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 Sep 07 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 250 Issued at 0245Z on 07 Sep 2002 This report is compiled from data received at SWO on 06 Sep
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0358 0358 0358                       230
0446 0446 0446                       150
0512 0512 0512                       330
0638 0638 0638                       100
1143 1143 1143                       110
1938 1938 1938                       340
2010 2010 2010                       210
B. Proton Events
The greater than 10 MeV proton flux has been slowly increasing over the past 24 hours, apparently due to a backside solar event over the northwest limb. Current proton flux is about 6 pfu.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 178  SSN 189  Afr/Ap 008/010   X-ray Background B7.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.5e+06   GT 10 MeV 3.0e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.90e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 3 3 3 2 1 1 1 Planetary 2 3 3 3 3 2 3 2
F. Comments
  The Afr index reported in Part E is estimated from
Boulder observations.

All times in UTC

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