Viewing archive of Saturday, 20 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 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 293 Issued at 0245Z on 20 Oct 2001 This report is compiled from data received at SWO on 19 OctA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0047 0105 0113 9661 N16W18 X1.6 2b 9300 1400 II/IV 0220 0232 0246 M1.2 0252 0258 0303 9671 N16E17 M1.4 Sf 21 0635 0645 0653 9658 S16W44 M1.3 Sf 0858 0859 0902 9658 S14W47 Sf 190 0935 0943 0955 9658 S14W47 M5.7 1b 100 370 1025 1025 1042 9671 N17E13 Sf 200 1613 1630 1643 9661 N15W29 X1.6 2b 720 II/IV 1710 1718 1725 140 1722 1724 1728 9661 S14W50 Sf 100 2314 2325 2333 9658 S17W57 M3.3 1f 170
B. Proton Events
Greater than 10 MeV proton levels reached event
threshold at 19/2225 UTC.
C. Geomagnetic Activity Summary
Geomagnetic activity was quiet to
unsettled. Greater than 10 MeV proton levels were enhanced due to
the two CMEs from Region 9661, but remained just below event
threshold.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 248 SSN 219 Afr/Ap 008/008 X-ray Background C2.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.4e+06 GT 10 MeV 4.2e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.80e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 1 2 2 3 3 2 3 Planetary 0 1 2 2 3 3 2 3
F. Comments
None
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