Viewing archive of Thursday, 11 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 11 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 101 Issued at 0245Z on 11 Apr 2002 This report is compiled from data received at SWO on 10 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0759 0759 0759 500 1223 1231 1240 9893 N15W14 M8.2 1n 280 510 II 1848 1907 1915 9899 N17E23 M1.6 1n 7700 490 II 1959 1959 2000 420
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
levels for most of the day with one period of unsettled conditions
from 15-18Z. The lingering effects of the high speed stream appear
to be ending. Greater than 2 MeV electrons have returned to near
background levels after three days of enhancement.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 194 SSN 220 Afr/Ap 006/007 X-ray Background C1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.1e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.80e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 1 1 2 2 3 2 2 Planetary 1 0 1 3 3 3 3 2
F. Comments
None
All times in UTC
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