Viewing archive of Monday, 22 April 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 Apr 22 0245 UTCPrepared 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 2002 This report is compiled from data received at SWO on 21 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0043 0151 0238 9906 S14W84 X1.5 1f 760 1900 II/IV 0111 0111 0131 500
B. Proton Events
A greater than 10 MeV proton event began at
21/0225 UTC and continues in progress. The maximum flux so far is
2520 PFU at 21/2320 UTC. A greater than 100 MeV proton event began
at 21/0155 UTC and continues in progress. The maximum flux so far is
23 PFU at 21/1025 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 173 SSN 160 Afr/Ap 007/007 X-ray Background C1.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.9e+08 GT 10 MeV 1.3e+08 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.00e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 2 1 2 3 2 3 Planetary 3 2 2 1 2 2 2 3
F. Comments
None
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