LASCO Activity Report for
October 22, 2004 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

2004/10/21 (Thursday)

00:54 UT  EN East	Bright ragged loop front followed:
		     i) at 02:30 UT, a little bit to S by another bright loop 
			front (narrower),
		    ii) at 05:30 UT, at roughly the same PA as the one at 02:30,
			by another similar front, which in turn it was preceded 
			at 04:30 UT by a fainter and elongated ragged front,
		   iii) at 07:31 UT by a wider (like the first one) bright 
			ragged loop front and trailing material,
		    iv) at 09:54 UT by a bright and relatively narrow ragged loop
			front,
		     v) at 14:30 UT, by another ragged loop front, and
		    vi) at 19:54 UT, by a bright and big ragged loop front with
			structured inner part.	    
			During the day, GOES reported several C class X-ray 
			flares from NOAA AR 0687, most likely associated to 
			the events seen in C2:
		      - a C7.8 X-ray flare (N11E60) between 00:18 - 00:52 UT
			with peak emission at 00:40 UT,	
		      - a C4.3 X-ray flare (N11E62) between 02:10 - 02:18 UT
			with peak emission at 02:15 UT,	 
		      - a B4.9 X-ray flare (N09E57) between 04:00 - 04:11 UT
			with peak emission at 04:08 UT,	  
		      - a C2.0 X-ray flare (N05E60) between 05:05 - 05:15 UT
			with peak emission at 05:12 UT,
		      - a C5.2 X-ray flare (N08E57) between 06:44 - 06:57 UT
			with peak emission at 06:53 UT,
		      - a B9.8 X-ray flare (N11E55) between 09:21 - 09:41 UT
			with peak emission at 09:34 UT,
		      - a B9.9 X-ray flare (N07E53) between 14:01 - 14:08 UT
			with peak emission at 14:06 UT.
		      - a C9.9 X-ray flare (N10E50) between 19:24 - 19:56 UT
			with peak emission at 19:48 UT.

06:30 UT  NN West	Narrow jet-like front that quickly fades.	

07:31 UT  WS West	Faint ragged loop front and some trailing material. It
			fades throughout C3.	
				      
17:30 UT  S West	Faint and diffuse front barely visible in C3. Couple
			of C class X-ray flares from NOAA AR 0682. Peak
			emissions at 14:42 UT (C1.7 at S14W42), and 15:22 UT
			(C4.3 at S13W41).
   
20:06 UT  N West	Faint 'half' loop front expanding toward WNW.	
 
               

2004/10/22 (Friday)

02:30 UT  N East	Bright and narrow loop-like structure followed at 
			04:30 UT by a ragged loop front. Very faint in C3.	
	
08:30 UT  N East	'Explosive', bright, and wide loop front. Trailing
			material. Faint extensions on SE. M2.2 X-ray flare 
			from NOAA AR 0687 at 07:50 UT.

09:30 UT  WS West	Very faint and diffuse front extending up to above 
			the W limb. Too early to say if it is associated to 
			the previous event or if it is a beast of a different 
			source.	    

	Last C2 image analyzed taken at 10:30 UT