Viewing archive of Wednesday, 4 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 04 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 247 Issued at 0245Z on 04 Sep 2002 This report is compiled from data received at SWO on 03 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0001 0001 0002 140 0021 0054 0101 M1.0 1002 1005 1008 C1.5 320 1101 1102 1102 320 1254 1256 1256 320 1843 1845 1846 210 2008 2009 2009 120
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled. A weak shock, due to activity on 30 August, was observed
at the L1 position by the NASA/ACE spacecraft at 03/1710 UTC.
Solar wind velocity reached a peak around 390 km/s and the IMF had a
Bz deflection of 10 nT. Current Bz is approximately -8 nT.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 171 SSN 266 Afr/Ap 007/010 X-ray Background C1.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.0e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.70e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 1 1 2 2 2 3 3 Planetary 2 2 1 3 3 3 3 3
F. Comments
None
All times in UTC
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