Viewing archive of Monday, 23 April 2001

Geophysical report

Solar and Geophysical Activity Summary 2001 Apr 23 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 113 Issued at 0245Z on 23 Apr 2001 This report is compiled from data received at SWO on 22 Apr
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0145 0148 0151  9433 N20E30 C1.7  Sf 290
0348 0348 0348                       110
1702 1707 1713  9433 N12E21 C2.2  Sf 290
1910 1911 1911                       460
2037 2044 2047  9433 N14E18 M3.2  1n 5700   270    II
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from quiet to minor storm levels. This activity is most likely related to the passage of one of the CMEs observed over the northwest limb earlier this week.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 193  SSN 164  Afr/Ap 024/028   X-ray Background C1.1
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.1e+05   GT 10 MeV 4.4e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.90e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 3 4 4 5 4 2 3 Planetary 4 3 5 4 5 5 3 4
F. Comments
  None

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