M1.7 solar flare erupted from Region 1611 - backsided full-halo CME observed

M1.7 solar flare erupted from Region 1611 - backsided full-halo CME observed

Solar flare measuring M1.7 erupted on November 8, 2012 at 02:23 UTC. The source of this event is newly formed region rotating into view, Region 1611 (N12E66). The event started at 02:28, peaked at 02:23 and ended at 02:25 UTC. Type II Radio Emission was recorded indicating that a coronal mass ejection is associated with a flare event.

Space Weather Message Code: ALTTP2 Serial Number: 825
Issue Time: 2012 Nov 08 0259 UTC
ALERT: Type II Radio Emission
Begin Time: 2012 Nov 08 0220 UTC
Estimated Velocity: 784 km/s

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

SWPC later confirmed that the event was associated with a CME off the east limb (not expected to be geoeffective) and a Type II radio sweep. A backsided, full-halo CME was observed later in the day (first entering the C2 field of view at 08/1112Z); Stereo imagery indicated that old Region 1598 was the source. There are currently 6 numbered sunspot regions on the disk including two newly numbered groups: Region 1611 (N12E66) and 1612 (N06E71).


 




 


 

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