:Product: 20050202RSGA.txt :Issued: 2005 Feb 02 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 033 Issued at 2200Z on 02 Feb 2005 IA. Analysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: Solar activity was very low. Region 727 (S08W84) is rotating quietly around the west limb. Region 729 (S10W10), the only other sunspot group on the visible disk, is in slow decay. No significant activity was observed on the visible disk or limb. IB. Solar Activity Forecast: Solar activity is expected to continue at very low levels on 03 and 04 February. Old Region 720 (N13, L=178), which produced several major flares during its previous transit, is due to rotate onto the visible disk on 05 February. Expect increased solar activity levels following the return of this active region. IIA. Geophysical Activity Summary 01/2100Z to 02/2100Z: The geomagnetic field was quiet to unsettled. Solar wind speed remains slightly elevated, ranging between 500 - 550 km/s. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels again today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. Isolated active periods are possible at high latitudes. III. Event Probabilities 03 Feb-05 Feb Class M 05/05/15 Class X 01/01/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 02 Feb 082 Predicted 03 Feb-05 Feb 080/085/100 90 Day Mean 02 Feb 101 V. Geomagnetic A Indices Observed Afr/Ap 01 Feb 004/006 Estimated Afr/Ap 02 Feb 006/007 Predicted Afr/Ap 03 Feb-05 Feb 008/008-005/008-005/005 VI. Geomagnetic Activity Probabilities 03 Feb-05 Feb A. Middle Latitudes Active 25/20/20 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 30/30/25 Minor storm 10/10/10 Major-severe storm 01/01/01