Viewing archive of Friday, 19 March 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 Mar 19 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 078 Issued at 2200Z on 19 Mar 2010

IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z

Solar activity was very low. Region 1054 (N16W69) produced the largest event of the period, a B7/sf flare, at 18/2308Z. An associated Type II radio sweep was observed by Palehua and Learmonth radio observatories at 18/2311Z. Palehua reported a speed of 776km/s. SOHO LASCO C2 depicted a weak, west limb CME. Region 1056 (N18E22) remains stable and quiet.
IB. Solar Activity Forecast
Solar activity is expected to remain very low with only a slight chance for a C-class flare within the next 3 days (20-22 March).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet for the next 3 days (20-22 March).
III. Event Probabilities 20 Mar to 22 Mar
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       19 Mar 084
  Predicted   20 Mar-22 Mar  084/084/084
  90 Day Mean        19 Mar 081
V. Geomagnetic A Indices
  Observed Afr/Ap 18 Mar  004/005
  Estimated     Afr/Ap 19 Mar  003/005
  Predicted    Afr/Ap 20 Mar-22 Mar  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 20 Mar to 22 Mar
A. Middle Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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