Viewing archive of Tuesday, 26 June 2007
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 2007 Jun 26 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 177 Issued at 2200Z on 26 Jun 2007IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity was very low. Region 961 (S11E60)
remains an Hsx alpha sunspot group. No significant flare activity
occurred during the last 24 hours.
IB. Solar Activity Forecast
Solar activity is expected to be very
low, with a slight chance for C-class flares late in the period.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was quiet to unsettled. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels again
today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to range from quiet to unsettled. Active periods are
possible, particularly at high latitudes, on 29 June.
III. Event Probabilities 27 Jun to 29 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Jun 071 Predicted 27 Jun-29 Jun 075/080/080 90 Day Mean 26 Jun 074
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jun 003/005 Estimated Afr/Ap 26 Jun 004/005 Predicted Afr/Ap 27 Jun-29 Jun 003/005-005/005-006/008
VI. Geomagnetic Activity Probabilities 27 Jun to 29 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 05% | 15% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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