Viewing archive of Thursday, 28 September 2017
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 2017 Sep 28 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 271 Issued at 0245Z on 28 Sep 2017 This report is compiled from data received at SWO on 27 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1210 1210 1210 130 1249 1249 1249 100
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field reached
major storm levels in the 27/18-21Z synoptic period due to CIR and
positive polarity CH HSS influences. Minor levels were observed the
final synoptic periods of the day.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 091 SSN 035 Afr/Ap 024/037 X-ray Background A8.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.9e+06 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.90e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 4 4 3 3 5 4 Planetary 3 2 4 4 4 4 7 5
F. Comments
None
All times in UTC
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