Viewing archive of Saturday, 23 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 23 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 174 Issued at 2200Z on 23 Jun 2007IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was very low. The visible disk remains
spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was quiet to unsettled due to a recurrent
coronal hole high speed stream.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled for June 24 -25. There remains
the chance for isolated active periods. The geomagnetic field is
expected to be quiet for June 26.
III. Event Probabilities 24 Jun to 26 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Jun 066 Predicted 24 Jun-26 Jun 068/068/070 90 Day Mean 23 Jun 074
V. Geomagnetic A Indices
Observed Afr/Ap 22 Jun 012/016 Estimated Afr/Ap 23 Jun 006/012 Predicted Afr/Ap 24 Jun-26 Jun 006/012-006/008-003/008
VI. Geomagnetic Activity Probabilities 24 Jun to 26 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 15% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 20% |
| Minor storm | 15% | 15% | 10% |
| Major-severe storm | 05% | 05% | 01% |
All times in UTC
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| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/23 | M8.9 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
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|---|---|
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