Viewing archive of Tuesday, 17 April 2001
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 2001 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 2001 This report is compiled from data received at SWO on 16 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0616 0622 0625 M1.1 2104 2104 2106 140
B. Proton Events
The greater than 10 MeV and greater than 100 MeV
proton flux events that began on 15 April continued, though both
steadily declined.
C. Geomagnetic Activity Summary
Quiet to unsettled levels
occurred.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 123 SSN 107 Afr/Ap 007/007 X-ray Background B6.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.8e+07 GT 10 MeV 1.8e+07 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.00e+08 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 1 1 2 3 1 3 Planetary 3 2 1 1 2 3 2 2
F. Comments
None
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