Viewing archive of Thursday, 25 October 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 Oct 25 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 298 Issued at 0245Z on 25 Oct 2001 This report is compiled from data received at SWO on 24 Oct
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
1145 1146 1146                       160
1405 1418 1437  9669 N12W46 C3.8  Sf
2320 2322 2322                       100
B. Proton Events
Greater than 10 MeV protons were elevated but continued slow decay.
C. Geomagnetic Activity Summary
Geomagnetic activity was at quiet levels. The shock arrival from the two CMEs (M6/2N on 22/1502 UTC and X1/2B on 22/1759 UTC)) appears to have lower shock velocity than expected. The early signs of a shock signature are visible on NASA ACE/EPAM data.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 239  SSN 230  Afr/Ap 004/003   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 9.2e+05   GT 10 MeV 2.3e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 5.20e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 1 1 1 2 2 1 0 Planetary 1 0 0 1 1 2 1 1
F. Comments
  None

All times in UTC

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