LASCO Activity Report for
July 29, 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

2005/07/28 (Thursday)

00:30 UT  E Limb	Bright and ragged front immediately followed on ENE by
			a narrower and also bright ragged front. GOES reported:
			i) on previous day, a C4.5 X-ray flare on N06E89 between 
			22:39 - 23:15 UT with peak emission at 23:00 UT, and
			ii) today, an M1.0 X-ray flare on NOAA AR 10792 (N07E89)
			between 00:01 - 00:54 UT with peak emission at 00:30 UT.

06:54 UT  EN East	Bright and relatively elongated ragged front. Twisted 
			trailing material. Gusty outflow then all along the day.
			GOES reported a C2.8 X-ray flare on NOAA AR 10792
			(N11E81) between 06:13 - 06:52 UT with peak emission at
			06:52 UT.

12:30 UT  WN West	Very slow development of a system of faint loop fronts.
			Difficult to give an exact time of first appearance.

14:30 UT  S East	Fain jet-like front followed a little bit to S at 15:54
			UT by a very narrow loop front. Barely visible in C3
			(and only close to its inner edge). By the end of the
			day, the event develops as a big twisted structure.

22:06 UT  E Limb	Bright and ragged loop front. Very faint and diffuse 
			extensions to N and S. First seen in C3 at 00:42 UT on
			next day, just appearing above the E Limb. Like in C2, 
			very faint and diffuse extensions suuround the main
			structure to N and S (shock). The shock is practically
			not discernible on the western hemisphere. The mean
			plane-of-sky speed of the LE of the event at PA 85 was
			~ 1550 km/sec. GOES reported multiple B-class flares
			all along the day, a couple of C-class flares, and an
			M1.0 X-ray flare (see previous events) all from NOAA AR
			10792. By the time of this particular event, GOES
			reported an M4.8 X-ray flare on the same AR (N09E82)
			between 21:39 - 22:24 UT, with peak emission at 22:08 UT.
			EIT was in 304 A CME watch. A movie of the event in 304
			can be seen at: 
	http://umbra.nascom.nasa.gov/eit/movies/eit_20050728_0729_304.mov 

2005/07/29 (Friday)

07:30 UT  SS West	Very faint and diffuse front.

Time of the last C2 image under analyis: 12:06 UT.