Viewing archive of Monday, 22 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 22 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 295 Issued at 0245Z on 22 Oct 2001 This report is compiled from data received at SWO on 21 Oct
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0018 0019 0019                       170
0433 0437 0439  9670        C7.8     5100   6      II
0456 0456 0457                       200
0509 0518 0527              M1.3     650    43
1112 1136 1148  9661 N13W56 M2.5  2n        100
1151 1157 1308  9661 N12W56       Sf 470
1153 1155 1155                       110
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from quiet to major storm levels. A strong shock was observed at ACE at 21/1614 UTC. This was followed by a sudden impulse at 21/1645 UTC (measured as 15 nt on the Boulder magnetometer). The sudden impulse was followed by minor (21/1500-1800 UTC) and major (21/1800-2400 UTC) storm levels.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 224  SSN 239  Afr/Ap 033/040   X-ray Background C1.1
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.0e+07   GT 10 MeV 1.2e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.00e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 2 3 3 3 5 6 6 Planetary 2 3 3 2 3 6 6 7
F. Comments
  Afr based on Boulder A-Indices

All times in UTC

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