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Active Region 2151 - (M5.9)


Marcel de Bont

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SpaceWeatherLive Report

Analysis of the Solar Activity August 24, 2014


Analysis of the past 24h

Sunspot region 2151 gave us a big surprise with a spectacular M5.98 (R2-moderate) solar flare at 12:17 UTC. The solar flare is eruptive as you can see on this image from NASA Solar Dynamics Observatory and a CME will likely be launched. It might however not be earth-directed as this region is close to the east-limb but we will of course keep you updated as more data becomes available. This post will be updated as the day progresses.

http://www.spaceweatherlive.com/community/uploads/monthly_08_2014/post-94-0-86468300-1408887237.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_08_2014/post-94-0-65768800-1408887237.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_08_2014/post-94-0-95811500-1408884304.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_08_2014/post-94-0-15102700-1408885096.png

 

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Video

Here is a video of the M5.98 solar flare that occurred today at 12:17 UTC. This is a composite video from SDO in the 131-193 and 171 Angstrom wavelengths.

 

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Coronal Mass Ejection

The latest SOHO/LASCO imagery shows a bright CME leaving the south-east limb but more imagery is needed for a thorough analysis.

 

http://www.spaceweatherlive.com/community/uploads/monthly_08_2014/post-94-0-22995400-1408889583.jpghttp://www.spaceweatherlive.com/community/uploads/monthly_08_2014/post-94-0-29152800-1408889947.png

 

10cm Radio Burst

Space Weather Message Code: SUM10R

Serial Number: 624

Issue Time: 2014 Aug 24 1249 UTC

SUMMARY: 10cm Radio Burst

Begin Time: 2014 Aug 24 1209 UTC

Maximum Time: 2014 Aug 24 1210 UTC

End Time: 2014 Aug 24 1216 UTC

Duration: 7 minutes

Peak Flux: 409 sfu

Latest Penticton Noon Flux: 132 sfu

 

Type II Radio Emission

Space Weather Message Code: ALTTP2

Serial Number: 954

Issue Time: 2014 Aug 24 1249 UTC

ALERT: Type II Radio Emission

Begin Time: 2014 Aug 24 1214 UTC

Estimated Velocity: 593 km/s

CME UPDATE 20:00 UTC

LASCO imagery is now complete and shows an impressive CME leaving the south-east limb. There is a partial halo to be seen but all the ejecta is heading east and away from Earth. This CME will not arrive at Earth. A small CME can also be seen leaving the west limb at the same time but that is from another eruption and not part of the M5 CME.

C2 

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C3

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What can we expect in the upcoming 24h?

Sunspot region 2151 looks like a fairly simple Beta region so this is for sure a very large surprise. We can not rule out more M-class activity especially from sunspot region 2146.

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