Viewing archive of Wednesday, 19 December 2018

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 2018 Dec 19 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 353 Issued at 0245Z on 19 Dec 2018 This report is compiled from data received at SWO on 18 Dec
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet to unsettled levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 070  SSN 000  Afr/Ap 005/005   X-ray Background A1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.5e+06   GT 10 MeV 1.7e+04 p/(cm2-ster-day)
(GOES-15 satellite synchronous orbit W129 degrees)
Daily Electron Fluence
GT 2 MeV 4.70e+06 e/(cm2-ster-day)
(GOES-15 satellite synchronous orbit W129 degrees)
3 Hour K-indices
Boulder 2 1 1 2 2 2 2 1 Planetary 2 1 1 1 2 1 2 1 
F. Comments
  None

All times in UTC

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 18:59 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Vorkuta
The strength of the interplanetary magnetic field is high (21.98nT), the direction is North (9.79nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-55nT)
The maximum X-ray flux of the past two hours is:
M1.31

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Latest alerts

19:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 18:59 UTC

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Moderate M1.31 flare from sunspot region 4055

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A coronal mass ejection has arrived at our planet. This is the first of possibly two coronal mass ejections that were expected to arrive from filament eruptions on April 12 and 13. The minor G1 geomagnetic storm threshold has already been reached and the NOAA SWPC has a strong G3 geomagnetic storm watch in place for tomorrow, 16 April. Keep an eye on the data here on this website in the hours ahead. There is more action to come!

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