Viewing archive of Wednesday, 20 August 2003
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 2003 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 2003 This report is compiled from data received at SWO on 19 AugA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0738 0759 0801 0431 S12W63 M2.0 1n 580 39 0804 0000 0819 II 0945 1006 1025 0431 S10W57 M2.7 2f 170 230 II/IV 1111 1115 1131 190 50 1201 1206 1241 120 1547 1549 1549 200
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
major storm to quiet levels. The CME-induced disturbance that
occurred yesterday appears to have ended. The field has been at
unsettled to quiet levels since about 19/0600 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 117 SSN 077 Afr/Ap 018/021 X-ray Background B3.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.0e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W112 degrees) Daily Electron Fluence GT 2 MeV 1.50e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices Boulder 5 4 3 3 3 3 3 3 Planetary 6 4 3 3 2 3 3 3
F. Comments
The Afr index reported in Part E is estimated from observed Boulder values.
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