Viewing archive of Sunday, 27 April 2003

Geophysical report

Solar and Geophysical Activity Summary 2003 Apr 27 0245 UTC
Prepared 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 Apr
A. 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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