Joint USAF/NOAA Report of Solar and Geophysical Activity 23 Sep 2008
Product: Report of Solar-Geophysical Activity
Issued: 2008 Sep 23 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 267 Issued at 2200Z on 23 Sep 2008
IA. Analysis of Solar Active Regions and Activity from 22/2100Z to 23/2100Z: Solar activity was very low. No flares occurred during the past 24 hours. Region 1002 (N26W40) was quiet and stable and has decayed to a small C-type sunspot group.
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 during the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (24-26 September).
III. Event Probabilities 24 Sep-26 Sep
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 23 Sep 069
- Predicted 24 Sep-26 Sep 069/069/069
- 90 Day Mean 23 Sep 066
V. Geomagnetic A Indices
- Observed Afr/Ap 22 Sep 002/004
- Estimated Afr/Ap 23 Sep 003/005
- Predicted Afr/Ap 24 Sep-26 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 24 Sep-26 Sep
- A. Middle Latitudes
- Active 10/10/10
- Minor storm 01/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 10/10/10
- Minor storm 01/01/01
- Major-severe storm 01/01/01