Viewing archive of Thursday, 7 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 07 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 127 Issued at 2200Z on 07 May 2009IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity was very low. No flares were detected.
The visible disk was spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
Geomagnetic field activity was predominately quiet to unsettled. An
isolated active period was observed at high latitudes between
0300-0600Z.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be predominately quiet for the next three days (08 - 10
May).
III. Event Probabilities 08 May to 10 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 07 May 070 Predicted 08 May-10 May 070/070/070 90 Day Mean 07 May 070
V. Geomagnetic A Indices
Observed Afr/Ap 06 May 006/006 Estimated Afr/Ap 07 May 008/008 Predicted Afr/Ap 08 May-10 May 005/008-005/008-005/005
VI. Geomagnetic Activity Probabilities 08 May to 10 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% | 05% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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