:Product: 20020209RSGA.txt :Issued: 2002 Feb 09 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 040 Issued at 2200Z on 09 Feb 2002 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity was low. Several C-class flares were observed during the period with the largest a C2/Sf from Region 9821 (S14E03) at 09/0817 UTC. This region has shown significant growth since yesterday in both area and spot count. Three new regions were numbered today as Region's 9823 (S05E24), 9824 (N21E67), and 9825 (N12E69). IB. Solar Activity Forecast: Solar activity is expected to be low. There is a chance of increased activity with the addition of the new regions numbered today in the northeast. IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been quiet to unsettled. The greater than 2 MeV electrons at geosynchronous orbit reached high levels today with a peak flux of 1130 pfu at 09/1530 UTC. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. The greater than 2 MeV electrons at geosynchronous orbit are expected to remain enhanced at moderate to high levels for the next two to three days. III. Event Probabilities 10 Feb-12 Feb Class M 30/30/30 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Feb 199 Predicted 10 Feb-12 Feb 205/205/200 90 Day Mean 09 Feb 223 V. Geomagnetic A Indices Observed Afr/Ap 08 Feb 009/010 Estimated Afr/Ap 09 Feb 008/008 Predicted Afr/Ap 10 Feb-12 Feb 008/008-005/008-005/005 VI. Geomagnetic Activity Probabilities 10 Feb-12 Feb A. Middle Latitudes Active 20/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/20 Minor storm 10/10/10 Major-severe storm 01/01/01