Viewing archive of Friday, 2 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 02 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 214 Issued at 0245Z on 02 Aug 2002 This report is compiled from data received at SWO on 01 Aug
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0028 0044 0054              C3.9     570    130
0039 0042 0045                       230
0116 0117 0117                       980
0326 0326 0326                       120
0344 0403 0409  0000 S10E12 C2.5  Sf 250
0739 0743 0747  0050 S08W40 C4.1  Sf 2300   47
1704 1707 1709  0044 S18W58 C6.0  Sf 4500   270
1930 1933 1935              C2.2     620
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to active levels with one period of minor storm conditions. A shock passage was observed by the NASA/ACE spacecraft at 01/0425 UTC and a corresponding 26 nT sudden impulse was recorded at 01/0511 UTC on the Boulder magnetometer. Active to minor storm conditions followed the sudden impulse.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 193  SSN 259  Afr/Ap 023/026   X-ray Background C1.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.9e+05   GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.00e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 3 4 4 4 4 3 5 Planetary 2 4 4 4 5 4 3 5
F. Comments
  None

All times in UTC

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