LASCO Activity Report for
May 27, 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

SOHO Telemetry Submode changed to Submode 5 on 2004/04/13 at 16:00 UT 
(SUMER began observing on 2004/04/14). SUMER campaign runs until 2004/06/17.
In other words, LASCO synoptic observation plan cadence remains the same
but the EIT CME watch images will be reduced to half-resolution (512x512)
during that period.

2004/05/26 (Wednesday)

00:06 UT  N West	The slow development of the system of loops along
			the streamer reported to start at 19:50 UT on previous
			day continues, becoming a streamer blowout late in 
			the day (difficult to determine exactly when). In
			particular,  by ~ 15:26 UT the development of an
			asymmetric loop front with faint extensions being 
			pushed toward the N Pole can be seen. It is clearly
			seen in C3 FOV by 19:42 UT. Some trailing material.
			
	11:00 - 12:30 UT	LASCO Data Gap due to ICAL01 (Intercalibration
				for EIT with CDS/SUMER).

12:50 UT  S West	Kind of ragged 'half-loop' (southern leg barely visible)
			front preceded by a fainter and diffuse front at 
			10:50 UT. Several other faint 'half-loop' fronts follow.
			They fade throughout C3.
	

2004/05/27 (Thursday)

01:50 UT  N West	In the trailing material of event reported to start at
			15:26 UT on previous day (see entry at 00:06 UT),
			structured feature and trailing material. Infalling
			material by 08:27 UT, starting at ~ 3.7 solar radii 
			(PA 303).