Viewing archive of Monday, 26 November 2001

Geophysical report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2001 Nov 26 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 330 Issued at 0245Z on 26 Nov 2001 This report is compiled from data received at SWO on 25 Nov
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0100 0114 0123  9704 S19W60 C4.5  Sf 68000  25
0945 0951 0954  9704        X1.1            12
2245 2317 2358              C9.0     56            II
B. Proton Events
The greater than 10 MeV proton event and associated polar cap absorption remained in progress at the end of the period (proton flux peaked to 18900 pfu at 24/0555 UTC).
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to unsettled levels with an isolated period of active (24/2100-25/0000 UTC). A moderate (10.2 percent based on the Thule neutron monitor) Forbush decrease began shortly after the beginning of forecast period and peaked near 25/0040 UTC, ended near 25/0300 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 170  SSN 102  Afr/Ap 006/008   X-ray Background B9.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 9.5e+07   GT 10 MeV 8.7e+06 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.70e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 2 2 2 2 2 1 1 Planetary 3 2 2 3 2 3 2 2
F. Comments
  Afr based on Boulder A-indices

All times in UTC

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