
LASCO Activity Report for
March 08, 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
2004/03/05
04:54 UT N West Blob-like front starting at ~ 4.4 solar radii.
05:30 UT S East Couple of fairly faint ragged fronts developing
towards S. They fade close to the inner edge of C3.
06:06 UT W Limb Very faint ragged front. It fades throughout C2.
15:30 UT W Limb Elongated and diffuse loop front developing toward
SW, followed at: i) ~ 17:30 UT, at the same PA, by
another elongated loop front, and trailing material;
ii) ~18:30 UT by a ragged front developing toward W;
and iii) ~22:30 UT, slightly to N, by another ragged
front. They all fade throughout C3.
18:30 UT E Limb Extremely narrow ragged front developing toward SE.
It fades throughout C2. Follow several spray-like
fronts slightly to S that fade very close to the inner
edge of C3. In particular, at ~21:08, ~00:06, and
~04:30 UT, the last two on 2004/03/06.
2004/03/06
05:54 UT W Limb Following event reported to start at 15:30 UT on
previous day, ragged loop front followed at 09:54 UT by
a jet-like front, and at 13:31 UT, slightly to S,
by a bright spray front developing toward SW. The spray
front is preceded at 11:54 UT by a diffuse ragged front
that quickly fades.
07:31 UT S West Ragged loop front developing toward S.
20:06 UT S East Slow development of loops' system along streamer.
Difficult to give accurate starting time. It continues
into next day.
20:30 UT S Pole Ragged front followed at 22:06 UT by another ragged
front to SW. By that time and over the S Pole a faint
asymmetric loop front with twisted inner structure
develops, fading throughout C3.
2004/03/07
06:06 UT W Limb Ragged front developing slightly toward NW.
07:31 UT W Limb To S of previous event, bright ragged and diffuse
front developing toward SW. It fades throughout C3.
09:54 UT S East Bright loop front followed by a complex inner structure.
At ~09:00 UT EIT Fe XII running difference images show
a CME coming out fromt just behind the SE Limb. By the
time no dimming is seen on the disk. The event disturbs
the slow development of the event reported to start at
20:06 UT on previous day. The resulting fronts are seen
to extend over the SW limb, giving the appearance of a
partial halo CME.
15:54 UT N East Jet-like front.
18:30 UT N East Ragged front and twisted structure slightly to N of
previous event.
2004/03/08
02:54 UT W Limb Extremely narrow ragged front followed at 06:30 UT by
another ragged front. They fade throughout C2.
06:54 UT W Limb Very faint loop front extending over SW (central axis
at PA ~ 245). Between 05:36 and 09:38 UT, EIT Fe XII
show the development of a CME originating on NOAA AR
0569, which is located slightly W of the central
meridian (~20 deg) at about 11 deg S latitude.
Web curator:
K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771