Event 09
Event
#
CME TimeSolar Source TimeLocateX-rayTypeHelicityMC AxisComment
MDIMCCylinderTorus
091999/04/13 03:301999/04/13 01:45N16E00B4.3FL+FD---------xoFL_from_SXT+EIT,FD_from_MLSO+OACt
Event Details
Solar source is a filament disappearance observed with MLSO and OACt Ha images. We can clearly see EIT waves toward south. X-ray intensity of post arcade loops increase up to B4.3.

Nitta pointed out other eruptive signatures [AR8515(S13E21) at 99/04/13 05:21 and SW Limb(S23W82)] during halo CME. Small flares at SW limb are too east as a solar source of MC. In case of a dimming of S13E21, there is a possibility of multiple solar sources of MC. But IP signatures are testbook like information as a MC. Therefore we think that it is less probability that several CMEs marged in IP medium.

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From Nitta's E-mail (2011/09/26 01:15 AM)
# 9
Agree on the CME, but there seem to be two more locations (approximately S15E20, S20E90) that erupted around the time of the CME. So the solar magnetic field to be compared with that of the ICME may not be straightforward.
Solar Source Images (Event 09)
Yellow contour is a filament disappearance.