Viewing archive of Wednesday, 17 April 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Apr 17 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 107 Issued at 0245Z on 17 Apr 2002 This report is compiled from data received at SWO on 16 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0108 0108 0108                       230
0126 0126 0126                       160
0801 0801 0801                       190
1008 1009 1009                       150
1037 1044 1054  9904 S14W77 C9.3  Sf 29     17     II
1253 1319 1330  9893 N23W88 M2.5  Sf 32     21
1441 0000 1455                                     II
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 196  SSN 172  Afr/Ap 006/010   X-ray Background C1.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.2e+05   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.60e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 2 3 1 2 2 2 2 Planetary 2 3 3 1 2 3 3 2
F. Comments
  The 16 April Afre index reported in Part E is
estimated from Boulder observations.

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