Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 193 Issued at 2200Z on 11 Jul 2012 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity was low. Regions 1519 (S15W18), 1520 (S17E06) and 1521 (S22W07) all produced C-class flares during the period. The largest event was a C9/1n at 11/0831Z from Region 1521. Region 1520 indicated consolidation and rotation in its trailer spots while developing additional sheer. The region remained a complex beta-gamma-delta magnetic configuration. During the past 24 hours, Region 1521 elongated along its E/W axis and developed a gamma configuration in its trailer spots. The region is now classified as an E-type beta-gamma group. A 20 degree long filament erupted in the NE quadrant of the disk at about 11/0930Z. The eruption occurred along a channel centered near N22E22. Limited LASCO imagery hinted at a possible CME that lifted off the NNE limb likely associated with the filament eruption. Further analysis of this CME is ongoing. IB. Solar Activity Forecast: Solar activity is expected to be moderate with a slight chance for X-class events for the next three days (12 - 14 July). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field was at predominately quiet to unsettled levels with isolated high latitude minor to major storm intervals from 11/0600 - 1200Z. ACE solar data indicated wind velocities remained steady at about 500 km/s while the Bz component of the interplanetary magnetic field did not vary much beyond +/- 5 nT. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at mostly quiet to unsettled levels for the next three days (12 - 14 July).