:Product: 0910RSGA.txt :Issued: 2007 Sep 10 2203 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 253 Issued at 2200Z on 10 Sep 2007 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity was very low. The visible solar disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next three days (11 - 13 September). III. Event Probabilities 11 Sep-13 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 10 Sep 067 Predicted 11 Sep-13 Sep 067/067/067 90 Day Mean 10 Sep 070 V. Geomagnetic A Indices Observed Afr/Ap 09 Sep 002/002 Estimated Afr/Ap 10 Sep 002/003 Predicted Afr/Ap 11 Sep-13 Sep 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 11 Sep-13 Sep 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