Viewing archive of Wednesday, 4 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 04 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 247 Issued at 0245Z on 04 Sep 2002 This report is compiled from data received at SWO on 03 Sep
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0001 0001 0002                       140
0021 0054 0101              M1.0
1002 1005 1008              C1.5     320
1101 1102 1102                       320
1254 1256 1256                       320
1843 1845 1846                       210
2008 2009 2009                       120
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled. A weak shock, due to activity on 30 August, was observed at the L1 position by the NASA/ACE spacecraft at 03/1710 UTC. Solar wind velocity reached a peak around 390 km/s and the IMF had a Bz deflection of 10 nT. Current Bz is approximately -8 nT.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 171  SSN 266  Afr/Ap 007/010   X-ray Background C1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.0e+05   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.70e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 1 1 2 2 2 3 3 Planetary 2 2 1 3 3 3 3 3
F. Comments
  None

All times in UTC

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