Viewing archive of Thursday, 11 April 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Apr 11 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 101 Issued at 0245Z on 11 Apr 2002 This report is compiled from data received at SWO on 10 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0759 0759 0759                       500
1223 1231 1240  9893 N15W14 M8.2  1n 280    510    II
1848 1907 1915  9899 N17E23 M1.6  1n 7700   490    II
1959 1959 2000                       420
B. Proton Events
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet levels for most of the day with one period of unsettled conditions from 15-18Z. The lingering effects of the high speed stream appear to be ending. Greater than 2 MeV electrons have returned to near background levels after three days of enhancement.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 194  SSN 220  Afr/Ap 006/007   X-ray Background C1.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.1e+05   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.80e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 0 1 1 2 2 3 2 2 Planetary 1 0 1 3 3 3 3 2
F. Comments

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