Viewing archive of Wednesday, 29 October 2003

Geophysical report

Solar and Geophysical Activity Summary 2003 Oct 29 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 302 Issued at 0245Z on 29 Oct 2003 This report is compiled from data received at SWO on 28 Oct
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0012 0014 0016  0488 N08E08       Sf 400
0127 0133 0145  0486 S19E15 C7.5  Sf 210
0149 0149 0149                       280
0153 0154 0154                       540
0203 0204 0205                       440
0248 0257 0309  0488 N08E07       Sf 120
0317 0333 0352  0488 N08E07       Sf 370
0847 0847 0850  0000 N08E17       Sf                  IV
0951 1110 1124  0486 S16E08 X17.2 4b 490000 13000  II/IV
0954 0954 0954  0486                 2200   84
1349 0000 0000                                        IV
1452 1453 1534  0486 S16E01       Sf 11000  440
B. Proton Events
The X17 flare that occurred at 28/1110Z produced proton events at greater than 10 and greater than 100 MeV which remain in progress at this time. The greater than 100 MeV event began at 28/1145Z with a maximum so far of 186 pfu. The greater than 10 MeV proton event began at 28/1215Z with a maximum so far of over 13,000 pfu. A polar cap absorption began at 28/1237Z and remains in progress.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active. A CME was observed to pass the ACE spacecraft at around 28/0130Z. Solar wind speed rose to near 800 km/s, but Bz stayed northward, thwarting a significant geomagnetic response.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 274  SSN 230  Afr/Ap 015/020   X-ray Background C3.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.8e+08   GT 10 MeV 1.8e+08 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W108 degrees)
Daily Electron Fluence
GT 2 MeV 4.80e+06 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W77 degrees)
3 Hour K-indices
Boulder 2 4 4 4 2 4 3 4 Planetary 3 4 4 4 3 4 3 4
F. Comments
  None

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