Viewing archive of Saturday, 10 December 2016

Solar activity 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.
Report of Solar-Geophysical Activity 2016 Dec 10 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 345 Issued at 2200Z on 10 Dec 2016

IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C4 event observed at 10/1715Z from Region 2615 (S06, L=141). There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low on days one, two, and three (11 Dec, 12 Dec, 13 Dec).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field has been at unsettled to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 721 km/s at 10/0307Z. Total IMF reached 7 nT at 09/2150Z. The maximum southward component of Bz reached -5 nT at 09/2139Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 10713 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on day one (11 Dec), quiet to unsettled levels on day two (12 Dec) and quiet levels on day three (13 Dec).
III. Event Probabilities 11 Dec to 13 Dec
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       10 Dec 072
  Predicted   11 Dec-13 Dec 070/070/073
  90 Day Mean        10 Dec 083

V. Geomagnetic A Indices
  Observed Afr/Ap 09 Dec  018/022
  Estimated     Afr/Ap 10 Dec  016/019
  Predicted    Afr/Ap 11 Dec-13 Dec  011/012-007/008-006/005

VI. Geomagnetic Activity Probabilities 11 Dec to 13 Dec
A. Middle Latitudes
Active20%10%05%
Minor storm05%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm20%15%15%
Major-severe storm20%10%10%

All times in UTC

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