Viewing archive of Sunday, 27 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 27 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 117 Issued at 0245Z on 27 Apr 2003 This report is compiled from data received at SWO on 26 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0051 0058 0100 0338 N20W65 M2.1 Sf 420 55 0104 0105 0105 380 0301 0306 0312 0338 N20W69 M2.1 Sn 100 0801 0807 0809 0338 M7.0 3600 1426 1430 1433 0338 N20W73 C1.4 Sf 490 1439 1446 1450 0338 N21W66 C6.0 Sf II 1525 1527 1529 0338 N21W66 Sf 120 1537 1543 1546 C1.3 2300 1558 1600 1601 240 1602 1605 1607 B7.4 280 1630 1635 1638 0338 N21W67 C5.5 Sf 350 1658 1658 1658 240 1702 1702 1702 210 1702 1705 1709 B7.7 290 1754 1758 1800 0338 N20W75 C5.1 Sf 790 2301 2301 2302 140 2313 2313 2313 290 2337 2340 2342 M2.5 6200 71
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to active levels. Influences from yesterdays favorably positioned
coronal hole have waned as the solar wind speed has dropped to
approximately 400 km/s. The greater than 2 MeV electron fluxes
reached high levels today.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 144 SSN 193 Afr/Ap 012/015 X-ray Background B5.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+06 GT 10 MeV 2.5e+04 p/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 3.50e+08 e/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) 3 Hour K-indices Boulder 3 2 4 2 2 3 2 3 Planetary 4 2 4 2 3 3 3 3
F. Comments
None
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