Viewing archive of Wednesday, 17 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 17 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 107 Issued at 0245Z on 17 Apr 2002 This report is compiled from data received at SWO on 16 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0108 0108 0108 230 0126 0126 0126 160 0801 0801 0801 190 1008 1009 1009 150 1037 1044 1054 9904 S14W77 C9.3 Sf 29 17 II 1253 1319 1330 9893 N23W88 M2.5 Sf 32 21 1441 0000 1455 II
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 196 SSN 172 Afr/Ap 006/010 X-ray Background C1.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.2e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.60e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 3 1 2 2 2 2 Planetary 2 3 3 1 2 3 3 2
F. Comments
The 16 April Afre index reported in Part E is estimated from Boulder observations.
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