Viewing archive of Saturday, 14 September 2002
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 2002 Sep 14 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 257 Issued at 0245Z on 14 Sep 2002 This report is compiled from data received at SWO on 13 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0211 0213 0222 0105 S07E03 Sf 270 1627 1627 1627 110 2058 2058 2058 100 2101 2105 2106 430 2121 2121 2121 140
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
quiet to minor storm levels. An isolated period of minor storm
conditions existed at mid-latitudes from 13/0600 to 0900 UTC.
Coronal hole high speed stream effects continued to be the main
source of the elevated activity. The greater than 2 MeV electron
flux at geosynchronous orbit exceeded event threshold at 13/1620
UTC, reached a maximum value of 1070 pfu at 13/1805 UTC, and fell
below threshold value at 13/1810 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 206 SSN 246 Afr/Ap 012/016 X-ray Background B7.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.4e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.70e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 5 4 3 2 3 2 Planetary 3 3 4 4 3 2 3 2
F. Comments
None
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