LASCO Activity Report for
April 27, 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

- SOHO is in telemetry Submode 5 (since 2005/03/11 @ 15:00 UT).

- EIT 195 CME watch at half-res (512x512).
 
- Venus entered the C3 FOV from the right on 2005/02/26 
  (by the end of the day). Still visible.

2005/04/26 (Tuesday)

	  S Pole	Partial Halo reported to start at 23:06 UT on previous
			day in progress. Several faint and diffuse fronts
			follow behind the LE.

11:50 UT  S Pole	Faint and wide system of expanding loop fronts. The
			development continues through the end of the day. They
			all fade throughout C3.

20:06 UT  S West	Bright and very elongated loop front with apparently 
			twisted interior. It fades throughout C3. EIT 195
			images show the ejection of material above the SW
			limb starting at around 19:36 UT. EIT signature could
			also be related to event reported to start at 00:50 UT 
			on next day. 

20:26 UT  W Limb	Jet-like front.

2005/04/27 (Wednesday)

00:50 UT  S West	Expanding and ragged loop front superposed in the LOS
			with event reported to start at 20:26 UT on previous
			day. Some expanding fronts follow. Difficult to
			disentangle the different features that almost
			continuously show up.

01:50 UT  SS West	Faint expanding loop front partly superposed with
			event reported to start at 00:50 UT on SW. The event
			at 00:50 UT develops faster.

05:50 UT  S East	Wide and bright ragged loop front. EIT 195 images 
			show a filament-based eruption from around W edge
			of NOAA AR 10756 between 05:00 - 07:13 UT.

12:26 UT  ES East	Extremely faint and diffuse front, barely discernible.
			EIT 195 images show eruption from W edge of NOAA AR
			10756 between 11:36 - 13:25 UT.

Time of the last C2 image under analysis: 14:06 UT.