LASCO Activity Report for
May 2, 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

2006/05/01 (Monday)

	  W Limb	Samo gusty outflow until past midday.

04:06 UT  WS West	Narrow ragged front.

15:30 UT  W Limb	Extremely faint and diffuse brightening just appearing
 			above the W Limb [1]. It extends up to past the N Pole 
			by 16:30 UT. Also some extensions on S by 18:06 UT. A
	 		very ragged loop front follows on SW by ~ 17:06 UT [2].
 			Finally, a system of faint loops develops on W by 
			18:30 UT [3], moving out much more slowly than [2]. 
			The complex event appears as a faint full halo event 
			in the C2 FOV (though the signal in the eastern
		 	hemisphere is barely discernible). Feature [2] is 
			clearly discernible in C3, where it is first seen
 			appearing on SW by 18:18 UT. By 22:18 UT, Feature [3]
 			makes its appearance above the W Limb in the C3 FOV.
			There is no detectable signatures of the event in the
 			eastern hemisphere. The mean plane-of-sky speed based 
			in both C2 and C3 (only few points at the beginning of
 			the FOV) data is as follows: i) Feature [2] at PA 222:
 			~ 330 km/sec (showing practically no acceleration), 
			ii) Feature [3] at PA 270: ~140 km/sec (showing
			practically no acceleration).
			GOES recorded a long duration C1.0 X-ray flare on NOAA 
			AR 10875 (S17W29) between 14:33 - 16:34 UT with peak
 			emission at 15:35 UT. EIT 195 images show the 
			development of a frontsided CME characterized by the
 			formation of a dimming region to S of AR 10875, then 
			E and then N all between around 14:24 - 15:48 UT. Nice
 			post-flare loops afterward. In summary, the event has
 			therefore been determined as a very faint Full Halo 
			Event (only visible in C2), frontsided, associated to 
			a long duration C-class X-ray event on NOAA AR 10875.

2006/05/02 (Tuesday)

No significant activity...

Last C2 image available by the time of writing: 09:06 UT