Viewing archive of Tuesday, 22 April 2003

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 2003 Apr 22 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 112 Issued at 0245Z on 22 Apr 2003 This report is compiled from data received at SWO on 21 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0438 0438 0438                       100
1254 1307 1314  0338 N18E02 M2.8  1n 1400   300    II/IV
1852 1852 1853                       140
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at predominantly unsettled to active levels with isolated high latitude minor storm periods. A high speed solar wind stream, with winds ranging from 520 - 600 km/s, continues to buffet the geomagnetic field.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 126  SSN 154  Afr/Ap 018/021   X-ray Background B2.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.9e+06   GT 10 MeV 1.3e+04 p/(cm2-ster-day)
(GOES-10 satellite synchronous orbit W135 degrees)
Daily Electron Fluence
GT 2 MeV 1.30e+08 e/(cm2-ster-day)
(GOES-10 satellite synchronous orbit W135 degrees)
3 Hour K-indices
Boulder 3 3 4 4 3 3 3 3 Planetary 4 4 5 4 3 3 3 3
F. Comments
  The greater than 2 MeV electrons at geosynchronous
orbit reached high levels.

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