Viewing archive of Friday, 26 June 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 Jun 26 2201 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 2009IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity was very low. No flares occurred during
the past 24 hours. The solar disk was void of spots.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was mostly quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the first day (27 June). An increase to
unsettled levels with a chance for active periods is expected on the
second day (28 June) due to a favorably positioned coronal hole.
Conditions are expected to be quiet on the third day (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 067 Predicted 27 Jun-29 Jun 067/067/067 90 Day Mean 26 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jun 006/007 Estimated Afr/Ap 26 Jun 003/004 Predicted Afr/Ap 27 Jun-29 Jun 005/005-008/010-005/005
VI. Geomagnetic Activity Probabilities 27 Jun to 29 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 25% | 05% |
| Minor storm | 01% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 30% | 05% |
| Minor storm | 01% | 15% | 01% |
| Major-severe storm | 01% | 01% | 01% |
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