Viewing archive of Friday, 25 April 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 Apr 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 115 Issued at 0245Z on 25 Apr 2003 This report is compiled from data received at SWO on 24 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0150 0150 0150 140 0829 0830 0830 130 1036 1039 1039 270 1245 1253 1303 0338 N21W39 M3.3 1n 830 89 II/IV 2228 2233 2235 0338 C1.3 220
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was
unsettled to active with occasional minor storm periods at high
latitudes. High speed solar wind continues with speeds up
to near 600 km/s.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 128 SSN 171 Afr/Ap 021/024 X-ray Background B4.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+06 GT 10 MeV 2.2e+04 p/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 9.70e+07 e/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) 3 Hour K-indices Boulder 3 3 3 4 3 4 4 4 Planetary 3 3 4 5 4 4 4 4
F. Comments
The greater than 2 MeV electrons at geosynchronous orbit reached high levels today.
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