Viewing archive of Tuesday, 20 August 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 Aug 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 232 Issued at 0245Z on 20 Aug 2002 This report is compiled from data received at SWO on 19 AugA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0423 0000 1345 IV 1028 1034 1038 0069 S12W25 M2.0 Sf 1400 77 1427 1446 1459 0069 S13W30 C9.5 Sf 170 48 1947 1948 1948 460 2056 2102 2106 0069 S11W33 M3.1 1b 220 21 2303 0000 0953 IV
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at
unsettled to minor storming levels. Minor storming occurred early
in the summary period. A sustained northern Bz began at around
19/0800 UTC bringing unsettled to active conditions.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 237 SSN 247 Afr/Ap 022/027 X-ray Background C1.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.7e+07 GT 10 MeV 1.6e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.20e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 4 3 5 3 3 4 3 3 Planetary 4 4 5 4 4 3 4 4
F. Comments
None
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