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Event of 2004 September 12

 
A halo coronal mass ejection (CME) occurred at 00:36 UT and its speed was 1328 km/s. Two powerful X-ray flares were observed during the same day. The first one started at 00:04 and ended 01:33 UT. Its class was M4.8. The maximum flux of the flare was measured at 00:56 UT. The first flare was located in northern-eastern active region NOAA 10672 (N04° E42°) and it was accompanied by Hα flare. The second X-ray flare (class: M3.2) started at 01:36 and was also accompanied by Hα flare. This flare was detected in southern-western active region NOAA 10667.


Created by memyll. Last Modification: Tuesday 20 of July, 2010 07:38:29 UTC by memyll.