
LASCO Activity Report for
April 13, 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 Submode change to Submode 5 on 2004/04/13 at 16:00 UT (SUMER begins
observing on 2004/04/14). SUMER campaign runs until 2004/06/17.
2004/04/12
N West Much gusty outflow all along the day starting after
the backsided 'full' halo CME on previous day.
00:30 UT S East Very narrow ragged loop front.
00:54 UT S West Faint asymmetric loop front extending up to above W
limb, immediately after the narrow ragged loop front
reported to start at 23:30 UT on previous day. It
fades throughout C3.
09:54 UT S West Ragged (spray-like) loop front. Gusty outflow well into
next day.
11:06 UT E Limb Ragged front (spray like). It fades in C3. It is
followed at 14:30 UT by a very narrow ragged loop
front (to S) and at 15:54 UT by a faint spray-like
front, both fading very close to the inner edge of
C3 FOV.
12:54 UT N East Faint asymmetric loop front. It fades in C3.
20:06 UT N West Ragged front preceding the slow development of
structured feature (*).
21:30 UT E Limb Ragged loop front developing slightly toward SE, fading
in C3.
2004/04/13
00:30 UT N West (*) Slow development of structured (twisted) feature.
Difficult to give an exact time of first appearance.
05:54 UT N East Bright loop front.
10:54 UT S East Ragged loop front.
11:30 UT S West Ragged front.
Web curator:
K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771