LASCO Activity Report for
August 30, 2005 SOHO Science Daily Meeting

Event times are first frame seen in C2 camera unless otherwise noted.
These are preliminary observations for the daily SOHO science discussions.
Final analysis is reported on the Lasco CME list.
An archive of these reports is available.

Points Of Interest

2005/08/29 (Monday)

01:54 UT  W Limb	Faint and elongated loop front.

05:30 UT  E Limb	Very faint and not-well-defined front leading the 
			development of an apparently twisted structure.

07:31 UT  WS West	Faint and diffuse feature.	

10:54 UT  W Limb	Loop front just appearing develops as a wide and bright
			expanding loop front. Faint extension are seen to S by
			11:06 UT. By 11:30 UT, the extensions fully surround 
			the C2 occulting disk. By that time, the LE of the event
			on West is already past the outer edge of the C2 FOV. 
			The event is first seen in C3 at 11:18 UT above the 
			WSW-W Limb, the occulting disk being covered by 11:42 UT
			by the faint extensions. The bulk of the CME (the
			loop-like structure) develops (projected in the plane
			of the sky) mainly toward W. The mean plane-of-sky speed
			of the LE (outermost front) of the event at PA 231 was 
			~ 1540 km/sec. GOES reported no significant X-ray
			activity by the time of the event. Likewise, EIT 195
			running difference images do not show significant 
			activity on the disk. However, they do show signatures 
			of a huge backsided CME starting at 11:00 UT above the
			SW. By 11:12 UT, the intensity disturbance (i.e., the
			CME signature) covers all above the SW, W, and NW limb.
			In summary, the event has therefore been determined as 
			an asymmetric Full Halo Event, backsided.

13:31 UT  S West	Following the halo event some ragged loop fronts 
			develop. In particular at: 13:31, 14:06, and 18:06 UT.
			Gusty outflow into next day.

23:30 UT  E Limb	Bright ragged loop front followed by an apparently
			twisted structure.

2005/08/30 (Tuesday)

03:54 UT  WS West	Faint loop front a little bit to N of the gusty outflow.

09:06 UT  NN East	Faint jet-ike front.

Time of the last C2 image under analysys: 12:30 UT.