Viewing archive of Thursday, 10 June 2010

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 2010 Jun 10 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 161 Issued at 2200Z on 10 Jun 2010

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

Solar activity has been at very low levels for the past 24 hours. New Region 1080 (S25W39) was numbered early in the period today and is a beta magnetic classification. Region 1078 (S22W73) remained stable throughout the period.
IB. Solar Activity Forecast
Solar activity is expected to be at very low levels with a slight chance for C-class events.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Observations made from the ACE spacecraft indicated the arrival of a weak coronal hole high-speed stream, with an increase in solar wind speeds from 305 km/s to 461 km/s. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels for the next three days (11-13 June).
III. Event Probabilities 11 Jun to 13 Jun
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       10 Jun 073
  Predicted   11 Jun-13 Jun  072/070/070
  90 Day Mean        10 Jun 077
V. Geomagnetic A Indices
  Observed Afr/Ap 09 Jun  003/004
  Estimated     Afr/Ap 10 Jun  006/006
  Predicted    Afr/Ap 11 Jun-13 Jun  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 11 Jun to 13 Jun
A. Middle Latitudes
Active10%10%10%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm01%01%01%
Major-severe storm01%01%01%

All times in UTC

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