Viewing archive of Friday, 15 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 15 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 258 Issued at 0245Z on 15 Sep 2017 This report is compiled from data received at SWO on 14 SepA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0057 0057 0057 130
B. Proton Events
The greater than 10 MeV proton flux continued a
steady decline from S1 (Minor radiation storm) levels, with a
maximum flux of 77 pfu at 14/0120 UTC and ended the period below the
S1 level. The greater than than 100 MeV proton flux returned to
background levels.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet
until the 12-15 UTC synoptic period, when the CIR and CH HSS caused
an overall response to active levels, followed by minor and moderate
geomagnetic storming conditions during the 15-18 UTC synoptic
period. The escalation of activity was likely due to the the
prolonged period of negative Bz during CIR passage
and CH HSS
onset.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 074 SSN 011 Afr/Ap 019/027 X-ray BackgroundF. Comments
None
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