Viewing archive of Friday, 26 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 26 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 299 Issued at 0245Z on 26 Oct 2001 This report is compiled from data received at SWO on 25 Oct
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0400 0400 0400                       100
0404 0404 0404                       130
1147 1148 1148                       120
1247 1247 1248                       210
1442 1502 1528  9672 S16W21 X1.3  2b 11000  540    II/IV
1615 1626 1738                       3400
1649 1703 1750                       1800
1740 1742 1746                       120
1857 1857 1901                       1600
1919 1923 1931  9678 N07E20 C7.5  Sf 1000
1959 2004 2008                       1000
2223 2224 2224                       310
2250 2254 2258              C6.1     110
2342 2348 2354  9678 N08E18 C3.8  Sf 550
B. Proton Events
Greater than 10 MeV protons are slightly elevated above background.
C. Geomagnetic Activity Summary
Geomagnetic activity was at quiet to unsettled levels. Shock arrival from the two CMEs (M6/2N on 22/1502 UTC and X1/2B on 22/1759 UTC) occurred at 25/0850 UTC with a sudden impulse of 22 nT recorded on the Boulder magnetometer. A north directed Bz component to the interplanetary magnetic field resulted in only unsettled conditions.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 239  SSN 225  Afr/Ap 006/007   X-ray Background C1.4
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.3e+07   GT 10 MeV 1.3e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.90e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 0 0 3 2 3 2 2 1 Planetary 0 0 2 2 2 3 3 2
F. Comments
  None

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