Viewing archive of Wednesday, 13 September 2017

Geophysical report

Solar and Geophysical Activity Summary 2017 Sep 13 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 256 Issued at 0245Z on 13 Sep 2017 This report is compiled from data received at SWO on 12 Sep
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0227 0227 0227                       120                           
 0233 0233 0233                       110                           
 0236 0236 0236                       100                           
 0305 0305 0305                       110                           
 0308 0308 0309                       130                           
 0312 0312 0312                       110                           
 0335 0335 0335                       100                           
 0722 0729 0734  2680 N08E48 C3.0  Sf 860    110    II              
 0742 0742 0748  2680 N07E48       Sf               II              
 1528 1535 1539  2680 N11E44 B3.5  Sf 110                           
 1903 1920 1928  2680 N10E41 C1.6  Sf 170           II              
 2357 2357 2359                       280                           
B. Proton Events
The greater than 10 MeV proton flux reached a peak flux of 748 pfu at 12/0005 UTC. The greater than 100 MeV proton flux has gradually declined to near 2 pfu.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled for most of the day. An increase to isolated active and minor storm conditions occurred the final two synoptic periods of the day, likely associated with the arrival of a CIR ahead of a positive polarity CH HSS.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 076  SSN 011  Afr/Ap 016/016   X-ray Background A8.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.9e+08   GT 10 MeV 2.8e+07 p/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.00e+08 e/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 1 4 4 4 3 3 4 Planetary 2 1 3 3 3 3 4 5 
F. Comments
  None

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