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Geophysical report

Solar and Geophysical Activity Summary 2002 Apr 05 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 095 Issued at 0245Z on 05 Apr 2002 This report is compiled from data received at SWO on 04 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0423 0441 0457              C9.8                   II
0651 0654 0656  9888 S10W02 C3.0  Sf 2300   16
0809 0809 0809                       1300
1006 1006 1008                       290
1041 1048 1054              M1.4
1144 1145 1147                       100
1148 1149 1149                       170
1151 1151 1152                       180
1334 1334 1334                       100
1411 1411 1411                       260
1524 1532 1538              M6.1     310    58
1942 1942 1942                       190
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled. At 04/1335 UTC, the greater than 2 MeV electron flux exceeded event threshold at GOES-8 in geosynchronous orbit (75W). Flux levels remained above 1000 pfu for about nine hours, reaching a max of about 1960 pfu near local noon.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 216  SSN 176  Afr/Ap 006/008   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.4e+05   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 6.70e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 1 2 3 3 2 0 0 Planetary 2 1 2 3 3 3 2 2
F. Comments
  Afr estimated from Boulder A.

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