Viewing archive of Monday, 9 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 09 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 099 Issued at 0245Z on 09 Apr 2001 This report is compiled from data received at SWO on 08 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0838 0838 0839 150 2335 2336 2336 190 2339 2340 2340 560
B. Proton Events
Proton fluxes > 10 MeV remained near event
thresholds until the middle of the day and then have declined
rapidly to near background levels. The Thule Neutron Monitor has
shown a decreasing counting rate beginning about 08/1500 UT and
reaching down about five percent or more by 08/1800 UT.
C. Geomagnetic Activity Summary
Geomagnetic activity has ranged
from quiet to minor storm values.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 169 SSN 188 Afr/Ap 033/041 X-ray Background B6.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.7e+07 GT 10 MeV 2.8e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.20e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 4 5 5 4 5 5 Planetary 3 1 4 6 6 4 5 5
F. Comments
None
All times in UTC
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