LASCO Activity Report for
April 01, 2004 SOHO Science Daily Meeting

Planner: K. Schenk, G. Stenborg

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 now in a telemetry keyhole (2004/03/19 - 2004/04/04). LASCO data 
will consist of typically two (occasionally three) continuous periods of
real-time data per day.

Beginning at 00:00 UT on March 18, 2004 EIT will be in CCD bakeout mode; 
No EIT images until April 5, 2004.


2004/03/31

	20:57 UT        First C2 image after doors reopen
               	 	following 2004/03/30 maneuvers.

	21:03 UT        First C3 image after doors reopen
               	 	following 2004/03/30 maneuvers.

21:48 UT  N East	Ragged front already close to the outer edge of C2 FOV.

21:48 UT  N Pole	Ragged front developing towards NE. Faint extension
			over the N Pole to NW. As the event develops, a long
			and thin feature is seen to be pushed toward NE.

21:53 UT  HALO		Full halo CME already in progress. Time of C3. GOES
			reports several C-class X ray flares on NOAA AR 10582
			during the day. In particular, a C2.8 X ray flare 
			between 15:07 and 15:17 UT (N12W11), and a C7.4 X-ray
			flare between 20:02 and 20:10 UT with intensity peak
			at 20:08 UT (N16W10). Therefore, the halo CME could
			be cataloged as most probably frontsided.

2004/04/01

	01:00 - 08:25 UT	Temporary DSN Data Gap

	12:25 - 21:05 UT	Temporary DSN Data Gap


Web curator: K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771