Viewing archive of Friday, 22 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 22 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 234 Issued at 0245Z on 22 Aug 2003 This report is compiled from data received at SWO on 21 AugA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1009 1009 1009 190 2041 2041 2041 150
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
unsettled to severe storm levels. The most disturbed period was from
21/0600 to 0900 UTC. ACE solar wind data indicates the gradual onset
of a coronal hole high-speed-stream over the past 24 hours. Current
solar wind parameters include speed at about 700 km/s, density from
1 to 5 p/cc, and Bz fluctuating between +/- 10 nT.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 119 SSN 086 Afr/Ap 040/053 X-ray Background B3.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+06 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W112 degrees) Daily Electron Fluence GT 2 MeV 1.80e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices Boulder 4 5 7 4 5 5 4 5 Planetary 4 5 7 5 6 5 5 5
F. Comments
The Afr index reported in Part E is estimated from observed Boulder values.
All times in UTC
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