Viewing archive of Sunday, 10 May 2009
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 2009 May 10 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 130 Issued at 2200Z on 10 May 2009IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity was very low. B1 flares were observed
at 10/0304Z and 10/1216Z. No spots were observed on the visible
disk.
IB. Solar Activity Forecast
Solar activity is expected to be very
low, with a slight chance for an isolated C-class flare.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
Geomagnetic activity was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic activity is
expected to be quiet for the forecast period (11-13 May).
III. Event Probabilities 11 May to 13 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 10 May 072 Predicted 11 May-13 May 072/072/073 90 Day Mean 10 May 070
V. Geomagnetic A Indices
Observed Afr/Ap 09 May 006/006 Estimated Afr/Ap 10 May 005/005 Predicted Afr/Ap 11 May-13 May 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 11 May to 13 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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