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"Solar activity was very low. No flares or sunspots were observed during the
past 24 hours." Joint USAF/NOAA Report of Solar and Geophysical Activity 22 Mar 2009 STATUS REPORT Date Released: Sunday, March 22, 2009 Source: Space Environment Center (NOAA) Product: Report of Solar-Geophysical Activity Issued: 2009 Mar 22 2200 UTC Prepared jointly by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and the U.S. Air Force. Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 081 Issued at 2200Z on 22 Mar 2009 IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity was very low. No flares or sunspots were observed during the past 24 hours. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field was predominantly quiet. Unsettled conditions were observed at mid-latitudes between 22/03-06Z. The continued influence of the recurrent coronal hole is reflected in ACE solar wind observations. Velocities ranged between 386-472 km/s, and interplanetary Bz ranged from -3 nT to +7 nT. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be predominantly quiet for the next three days (23-25 March). III. Event Probabilities 23 Mar-25 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 22 Mar 069 Predicted 23 Mar-25 Mar 070/070/070 90 Day Mean 22 Mar 070 V. Geomagnetic A Indices Observed Afr/Ap 21 Mar 005/008 Estimated Afr/Ap 22 Mar 003/006 Predicted Afr/Ap 23 Mar-25 Mar 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 23 Mar-25 Mar A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/10 Minor storm 01/05/01 Major-severe storm 01/01/01 |
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