Viewing archive of Saturday, 19 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 19 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 109 Issued at 0245Z on 19 Apr 2003 This report is compiled from data received at SWO on 18 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0212 0212 0212 130 1950 1958 2002 0337 M1.1 41
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at
unsettled to active levels with an isolated quiet period from 0300
UTC to 0600 UTC. The coronal hole induced high speed solar wind
stream continues. The greater than 2 MeV electron fluxes at
geo-synchronous orbit reached high levels today.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 108 SSN 051 Afr/Ap 019/020 X-ray Background B2.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.6e+06 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 3.80e+08 e/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) 3 Hour K-indices Boulder 2 4 4 4 4 3 2 3 Planetary 2 5 4 4 4 3 3 3
F. Comments
None
All times in UTC
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