Viewing archive of Wednesday, 17 July 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Jul 17 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 198 Issued at 0245Z on 17 Jul 2002 This report is compiled from data received at SWO on 16 Jul
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0008 0011 0015              C4.6                      IV
0328 0328 0329                       120
1202 1221 1237  0036 S08E71       Sf               II
1331 1410 1421  0030 N23W07 C8.5  Sf 200    64
1912 1915 1917              C1.4     160
2122 2138 2148  0030 N19W14 C2.6  Sf 280
B. Proton Events
A greater than 10 MeV proton event began at geosynchronous orbit at 16/1750 UTC. The 10 MeV flux at the close of the period was 32 pfu and gradually increasing.
C. Geomagnetic Activity Summary
Geomagnetic field activity was at quiet to active levels. Active levels occurred at some high latitude stations during 16/1800-2100 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 172  SSN 182  Afr/Ap 011/011   X-ray Background C2.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.4e+06   GT 10 MeV 7.3e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.90e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 3 2 2 3 3 3 3 Planetary 2 3 2 2 2 2 4 4
F. Comments
  Afr estimated based on Boulder USGS magnetometer data.

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