11 December


Solar activity has been at low levels for the past 24 hours. Region 1916
(S12W64, Ekc/beta-gamma) was the most active region on the visible disk.
It produced the largest event of the period, a C2 flare, observed at
10/2007 UTC, as well as several sub-faint flares. New Region 1924
(S13W52, Dro/beta) was numbered today. An approximately 20 degree long
filament, centered near S39E28, was observed in SDO/AIA 304 imagery
erupting from the solar disk from 11/0510 UTC – 11/0810 UTC. The
associated coronal mass ejection (CME) first observed in Lasco C2
imagery at 11/0748 UTC and STEREO COR2 imagery at 11/0809 UTC, indicated
the majority of the ejecta had a nearly straight southward trajectory.
Initial indications suggest a near miss for the Earth. There were no
Earth-directed CMEs detected in satellite imagery during the reporting
period.

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