LASCO Activity Report for
April 19, 2001 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.

Points Of Interest

Proton fluxes in C2 and C3 have returned to normal levels 
following yesterday morning's proton event.
Mercury presently in C3's field of view, moving right to left
Details of C3 transits are available at D. Biesecker's 
SOHO comet website. 

2001/04/18

02:30 UT  S West	Very fast bright front fills quadrant and disrupts
			streamers to N and S. N East streamer also disrupted.
			By 03:30 very faint extensions visible around entire 
			C2 occultor. 1388 km/s, proton event. Major flare
			from AR 9415? Large loops in S West vanish at 02:36,
			followed by EIT wave/dimming. Cavity and loop core
			follow in S West, gusty outflow along N West streamer.
	C2 Running Difference movie.
	C3 Running Difference movie.

13:54 UT  S West	Wide faint spray

20:30 UT  N West	Narrow bright front along streamer

23:06 UT  S West	Narrow bright front along streamer

2001/04/19

02:30 UT  N East	Bright front/spray near wide streamer

10:06 UT  S West	Bright blob/narrow front with cavity

11:54 UT  N West	Slow loop front presently entering C2