Viewing archive of Friday, 16 September 2005

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 2005 Sep 16 0248 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 259 Issued at 0245Z on 16 Sep 2005 This report is compiled from data received at SWO on 15 Sep
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0152 0212 0218              M1.3                                   
 0449 0000 1640                                        IV           
 0830 0838 0846  0808 S12W14 X1.1  2n 52     450                    
 0952 0952 0952                       290                           
 1635 0000 0420                                        IV           
 1855 1910 1926  0808 S11W19 M1.0  Sf        190                    
 2238 0000 1001                                        IV           
B. Proton Events
The greater than 10 MeV proton flux increased during the shock passage to 235 pfu before declining to around 10 pfu by the end of the period.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to severe storm levels. Geomagnetic storming occurred in response to the arrival of a CME associated with the double peak X-flare on 13 September. A 29 nT sudden impulse was observed in the Boulder magnetometer at 15/0907 UTC. Solar wind speed at ACE rose from approximately 600 km/s to near 900 km/s. The most disturbed periods occurred between 12 and 18 UTC following periods of southward Bz to near -15 nT.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 119  SSN 077  Afr/Ap 025/043   X-ray Background B3.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.7e+08   GT 10 MeV 6.1e+06 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W113 degrees)
Daily Electron Fluence
GT 2 MeV 4.60e+08 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W74 degrees)
3 Hour K-indices
Boulder 4 2 3 4 5 6 5 3 Planetary 3 2 3 5 6 7 5 4 
F. Comments
  None

All times in UTC

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