Joint USAF/NOAA Report of Solar and Geophysical Activity 01 Oct 2005
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Environment Center and the U.S. Air Force.
Updated 2005 Oct 01 2203 UTC
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 274 Issued at 2200Z on 01 Oct 2005
IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 01/2100Z: Solar activity was very low. Region 812 (S03W33) is now an H-alpha plage without spots. No new regions were numbered today.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 30/2100Z to 01/2100Z: The geomagnetic field was quiet to active.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled.
III. Event Probabilities 02 Oct-04 Oct
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 01 Oct 072
- Predicted 02 Oct-04 Oct 070/075/080
- 90 Day Mean 01 Oct 091
V. Geomagnetic A Indices
- Observed Afr/Ap 30 Sep 006/011
- Estimated Afr/Ap 01 Oct 008/012
- Predicted Afr/Ap 02 Oct-04 Oct 008/010-005/010-005/010
VI. Geomagnetic Activity Probabilities 02 Oct-04 Oct
A. Middle Latitudes
- Active 20/15/15
- Minor storm 10/05/05
- Major-severe storm 01/01/01
B. High Latitudes
- Active 20/20/20
- Minor storm 15/15/15
- Major-severe storm 05/05/05