Viewing archive of Tuesday, 17 February 2004

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 2004 Feb 17 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 048 Issued at 0245Z on 17 Feb 2004 This report is compiled from data received at SWO on 16 Feb
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0235 0236 0236                       130                           
 0551 0551 0551                       190                           
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled. The high speed coronal hole stream that produced the minor disturbance over the past several days has declined considerably. Solar wind speed peaked yesterday near 800 km/s, but gradually decreased to 500 km/s by the end of the period.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 099  SSN 081  Afr/Ap 006/007   X-ray Background A9.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.2e+06   GT 10 MeV 1.3e+04 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W101 degrees)
Daily Electron Fluence
GT 2 MeV 1.30e+09 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 1 1 2 2 2 2 1 Planetary 3 1 1 3 3 2 2 1 
F. Comments
  The greater than 2 MeV electron fluence at
geosynchronous orbit was at very high levels.

All times in UTC

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