LASCO Activity Report for
August 8, 2006 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

2006/08/07 (Monday)

01:31 UT  N West	Faint expanding loop front apparently preceded by a
 			fainter and expanding front. The latter fully surrounds
 			the C2 occulting disk by around 07:37 UT. The halo
			signature has elliptical shape (by that time the LE on
			NW is close to the end of the C2 FOV, and barely above
 			the limb on SE). Note that gusty outflow (and some
 			ragged fronts) can be seen along the day on SW. The 
			halo event is first seen in C3 at ~ 08:20 UT on NW, 
			just behind the pylon. The event is no longer
 			discernible in C3 by 20:42 UT. It didn't reach the 
			end of the FOV by that time (outermost part at ~ 
			17 solar radii -on NW-). The mean plane-of sky speed 
			of the LE at PA 162 was ~ 170 km/sec. The accuracy 
			of the measurements is poor due to the faintness and
 			diffuseness of the LE. GOES recorded no significant
 			X-ray activity during the day (A-level). Likewise, 
			EIT 195 images do not show significant frontsided
 			activity save some faint brightenings and apparent
 			outflow to NW of a bright region on the SW quadrant
 			(signature compatible with the C2 gusty outflow
 			mentioned in first paragraph). In summary, the event 
			was catalogued as a very faint and slow Halo Event,
			most probably backsided based on the lack of activity 
			at the appropriate location to be considered 
			frontsided.
		
11:54 UT  S West	Ragged front.
	
	14:30 - 18:30 UT	Temporary Data Gap (C2 time).

20:54 UT  S West	Ragged loop front.

2006/08/08 (Tuesday)

00:30 UT  E Limb	Diffuse brightening that quickly fades.
			
Last C2 image available by the time of writing:  03:54 UT