:Product: 20021210RSGA.txt :Issued: 2002 Dec 10 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 344 Issued at 2200Z on 10 Dec 2002 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity was moderate. An M1 x-ray flare occurred at 10/1226 UTC. An optical flare report for this flare was not received. Region 220 (S12E33) is the largest group on the disk. Other disk regions are relatively small and simple. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 220 is the most likely source of M-class activity. IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 11 Dec-13 Dec Class M 25/25/25 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 10 Dec 161 Predicted 11 Dec-13 Dec 160/165/170 90 Day Mean 10 Dec 159 V. Geomagnetic A Indices Observed Afr/Ap 09 Dec 003/008 Estimated Afr/Ap 10 Dec 005/008 Predicted Afr/Ap 11 Dec-13 Dec 005/008-005/008-005/008 VI. Geomagnetic Activity Probabilities 11 Dec-13 Dec A. Middle Latitudes Active 10/10/10 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01