Viewing archive of Monday, 19 August 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Aug 19 0245 UTC
Prepared 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 Aug
A. 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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