Viewing archive of Saturday, 17 August 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 Aug 17 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 229 Issued at 0245Z on 17 Aug 2002 This report is compiled from data received at SWO on 16 AugA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0208 0208 0208 270 0546 0611 0631 0061 N07W83 M2.4 Sf 280 46 II 1132 1232 1307 0069 S14E20 M5.2 2n 4100 1600 II/IV 1220 1227 1242 0066 N15W16 Sf II 2207 2212 2215 M1.2 2304 0000 0000 IV 2329 2333 2335 0069 S05E06 M1.7 Sf
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at
unsettled to minor storm levels. A slight indication of a weak
shock passage at the ACE spacecraft was observed at the beginning of
the period. The greater than 2 MeV electron flux at geo-synchronous
orbit exceeded threshold at 16/1505 UTC, preliminary maximum flux
was 1340 pfu at 16/1530 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 214 SSN 247 Afr/Ap 019/017 X-ray Background C1.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+06 GT 10 MeV 3.5e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.60e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 4 5 3 3 3 3 2 Planetary 4 3 5 3 3 3 3 2
F. Comments
None
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