Viewing archive of Monday, 23 September 2002
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 2002 Sep 23 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 266 Issued at 2200Z on 23 Sep 2002IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was low. Region 119 (S14W59) continues
to slowly decay. Region 132 (N19W14) is emerging rapidly and has
more than tripled its sunspot area since yesterday. New Region 133
(S25E20) was numbered.
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. M-class activity is possible in Region 119 and, if
growth continues, Region 132.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 24 Sep to 26 Sep
| Class M | 50% | 50% | 50% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Sep 154 Predicted 24 Sep-26 Sep 150/145/140 90 Day Mean 23 Sep 178
V. Geomagnetic A Indices
Observed Afr/Ap 22 Sep 004/009 Estimated Afr/Ap 23 Sep 005/008 Predicted Afr/Ap 24 Sep-26 Sep 008/008-008/008-008/008
VI. Geomagnetic Activity Probabilities 24 Sep to 26 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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