Viewing archive of Monday, 19 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 19 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 231 Issued at 0245Z on 19 Aug 2002 This report is compiled from data received at SWO on 18 AugA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0142 0142 0142 220 0143 0149 0157 0069 S06W10 C3.2 Sf 790 0229 0229 0229 100 0328 0334 0337 0069 S11W10 C8.4 1f 6200 0342 0342 0342 160 0346 0000 0349 II 0422 0000 1723 IV 0430 0436 0437 200 0522 0522 0523 100 0633 0633 0634 100 0954 1005 1009 0069 M2.3 240 61 1023 1023 1023 180 1329 1330 1332 0069 S05W01 Sf IV 1433 1439 1443 0069 S06W15 M1.9 Sf 2112 2125 2137 0069 S12W19 M2.2 1b 530 610 II 2200 2200 2200 920 2228 2231 2236 C4.3 230 IV 2307 2311 2311 33000 2315 2315 2315 850
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to unsettled levels. The expected interplanetary shock from the
M5/CME event on 16 Aug was observed at the L1 position by the
NASA/ACE spacecraft at 18/1810 UTC. A corresponding sudden impulse
of 27 nT was recorded on the Boulder magnetometer at 18/1848 UTC.
Greater than 2 MeV electron flux at geosynchronous orbit exceeded
event threshold with a peak value of 1590 pfu.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 241 SSN 308 Afr/Ap 015/018 X-ray Background C1.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.7e+07 GT 10 MeV 1.2e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.30e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 2 2 3 2 2 5 Planetary 4 3 2 3 3 2 4 5
F. Comments
None
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