Viewing archive of Friday, 18 September 2015
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 2015 Sep 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 261 Issued at 0245Z on 18 Sep 2015 This report is compiled from data received at SWO on 17 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0142 0142 0142 350 0934 0940 0945 2415 S21W04 M1.1 Sf
B. Proton Events
None.
C. Geomagnetic Activity Summary
Geomagnetic activity began the
period at active levels, then decreased to unsettled through
mid-day. The geomagnetic field was quiet returned to quiet levels
after midday, then reached unsettled levels to end the summary
period.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 107 SSN 072 Afr/Ap 012/011 X-ray Background B2.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.2e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.40e+08 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 4 3 4 3 2 2 1 3 Planetary 4 2 3 3 1 1 1 3
F. Comments
None
All times in UTC
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