Viewing archive of Friday, 19 July 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 Jul 19 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 200 Issued at 0245Z on 19 Jul 2002 This report is compiled from data received at SWO on 18 JulA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0322 0337 0340 0030 N20W27 M2.2 Sb 200 0617 0617 0618 150 0620 0620 0620 100 0642 0642 0642 100 0649 0653 0657 0030 N19W32 C1.7 Sf 420 0724 0744 0749 0030 N19W30 X1.8 2b 2500 620 II 0755 0755 0800 110 0815 0835 0840 0030 N21W29 C1.6 Sf 61 IV 1142 1143 1145 200 1303 1303 1303 170 1329 1329 1329 110 1426 1426 1428 1700 1852 1852 1852 460 1910 1911 1914 31000 II 1920 0000 1950 IV 1925 1926 1932 470 2016 2027 2035 0036 S06E39 C3.3 Sf 430 2212 2212 2213 320 2308 2317 2323 C8.2 250
B. Proton Events
The greater than 10 MeV proton event that began
on 16/1750 UTC ended at 18/1550 UTC, peak value reached 234 pfu at
17/1600 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to unsettled levels. The PCA event that began on 16/2215 UTC ended
at 18/0300 UTC with a peak absorption observed on the Thule 30 MHz
riometer of 6 Db at 17/1600 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 181 SSN 166 Afr/Ap 007/008 X-ray Background B7.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+08 GT 10 MeV 1.3e+06 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.90e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 2 3 1 1 2 1 Planetary 3 3 2 3 2 2 2 1
F. Comments
None
All times in UTC
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