Viewing archive of Tuesday, 20 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 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 324 Issued at 0245Z on 20 Nov 2001 This report is compiled from data received at SWO on 19 NovA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0259 0259 0259 130
B. Proton Events
A greater than 10 MeV proton event at
geosynchronous orbit began at 19/1230 UTC. This event remains in
progress with a peak flux so far of 33 pfu at 19/2340 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
quiet to active levels. A sudden impulse was observed at ground
magnetometers (10 nT at Boulder) at about 19/1815 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm ??? SSN 168 Afr/Ap 017/016 X-ray Background B8.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.4e+07 GT 10 MeV 1.0e+06 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.90e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 2 4 4 3 4 3 Planetary 3 2 2 3 3 3 4 4
F. Comments
None
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