Geophysical report

Viewing archive of Monday, 18 September 2017

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 18 0245 UTC
Prepared 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 2017 This report is compiled from data received at SWO on 17 Sep

A. Energetic Events

Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None

B. Proton Events

None

C. Geomagnetic Activity Summary

Field conditions were at quiet to active levels under continued positive polarity coronal hole high speed stream influence.

D. Stratwarm

Not available

E. Daily Indices: (real-time preliminary/estimated values)

10 cm 072  SSN 013  Afr/Ap 013/016   X-ray Background F.  Comments
  The GOES-13 electron fluence at greater than 2 MeV
exceeded high levels.
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The strength of the interplanetary magnetic field is moderate (12nT), the direction is North (9.68nT).

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