Report of Solar-Geophysical Activity
Issued: 2005 Sep 29 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force.
Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 272 Issued at 2200Z on 29 Sep 2005 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was very low. Regions 810 (N08W89) and 812 (S03W08) have been quiescent. No new regions were numbered today.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field was at quiet to unsettled levels.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels.
III. Event Probabilities 30 Sep-02 Oct
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 29 Sep 074
Predicted 30 Sep-02 Oct 070/070/070
90 Day Mean 29 Sep 093
V. Geomagnetic A Indices
Observed Afr/Ap 28 Sep 012/012
Estimated Afr/Ap 29 Sep 006/010
Predicted Afr/Ap 30 Sep-02 Oct 008/015-008/015-008/012 VI. Geomagnetic Activity Probabilities 30 Sep-02 Oct A. Middle Latitudes
Active 20/20/20
Minor storm 10/10/10
Major-severe storm 01/01/01
B. High Latitudes
Active 30/30/25
Minor storm 20/20/15
Major-severe storm 05/05/05