Viewing archive of Friday, 12 April 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Apr 12 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 102 Issued at 0245Z on 12 Apr 2002 This report is compiled from data received at SWO on 11 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0306 0306 0306                       270    52
0402 0402 0402                       120
0825 0825 0826                       125
1616 1626 1633  9904 S15W33 C9.2  1f        95     II
B. Proton Events
At 11/1800 UTC a greater than 10 Mev proton enhancement began with a current level of 1.0 pfu at geosynchronous orbit.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to unsettled levels.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 197  SSN 235  Afr/Ap 009/013   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.4e+05   GT 10 MeV 2.5e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 7.40e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 1 2 3 3 3 2 2 Planetary 2 1 2 3 3 4 3 4
F. Comments

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