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1999 December 23-25

 

event of 23 December 1999

 
There were six coronal mass ejections(CME) during 22 and 23 December (22 Dec. 1999 02:30 UT, 22 Dec. 1999 19:31 UT, 23 Dec. 1999 06:30 UT, 23 Dec. 1999 07:54 UT, 23 Dec. 1999 08:54 and 23 Dec. 1999 11:30 UT). A halo CME which started at 19:31 on 22 December associated with a dominant M5.3-class X-ray flare. The 02:30 CME associated with M1.8 flare.

The time profile of the high-energy ³He-rich event consists of a minor enhancement of ³He flux starting at 15 UT ± 1 hour on 23 December and a main rise at 05:00 UT ± 1 hour on 24 December.


Created by mevali. Last Modification: Tuesday 06 of July, 2010 12:51:19 UTC by memyll.