Viewing archive of Monday, 16 May 2005

Geophysical report

:Product: 20050516SGAS.txt :Issued: 2005 May 16 0250 UT Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 136 Issued at 0245Z on 16 May 2005 This report is compiled from data received at SWO on 15 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0321 0321 0323                       170                           
 0820 0820 0821                       110                           
 0920 0920 0921                       110                           
 1737 1744 1802  0763        C1.2     140                           
 2018 2058 2236  0758        C2.8                      IV           
 2227 2236 2242  0763 S15E13 M3.5  1n 290    83                     
B. Proton Events
The greater than 10 MeV proton flux at geosynchronous orbit increased above 10 pfu at 14/0525 UTC, reached a maximum of 3140 pfu at 15/0240 UTC, and decreased below 10 pfu at 15/1120 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was at unsettled to severe storm levels. The arrival of a CME from 13 May initiated the disturbance which caused severe storming conditions between 15/0600 UTC and 0900 UTC. Solar wind speed at ACE increased from approximately 200 km/s to 950 km/s. Solar wind speed has declined to approximately 750 km/s by the end of the period.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 103  SSN 069  Afr/Ap 075/105   X-ray Background B2.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.7e+08   GT 10 MeV 2.2e+07 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W114 degrees)
Daily Electron Fluence
GT 2 MeV 1.10e+08 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W76 degrees)
3 Hour K-indices
Boulder 5 5 9 7 3 3 4 5 Planetary 5 5 9 8 4 4 4 5 
F. Comments
  None

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