Viewing archive of Friday, 18 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 18 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 108 Issued at 0245Z on 18 Apr 2003 This report is compiled from data received at SWO on 17 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0836 0838 0839                       190
2009 2009 2009                       150
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was mostly unsettled to active during the past 24 hours with a minor storm period from 0300-0900 UTC in the mid latitudes, and a minor storm period at high latitudes from both 0300-1200 UTC and 1500-1800 UTC. The coronal-hole induced high speed solar wind flow continues. The greater than 2 MeV electron fluxes reached high levels today.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 101  SSN 037  Afr/Ap 026/030   X-ray Background B1.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 9.3e+06   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-10 satellite synchronous orbit W135 degrees)
Daily Electron Fluence
GT 2 MeV 3.70e+08 e/(cm2-ster-day)
(GOES-10 satellite synchronous orbit W135 degrees)
3 Hour K-indices
Boulder 3 5 5 4 4 4 3 2 Planetary 3 5 5 5 4 5 3 3
F. Comments
  None

All times in UTC

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