LASCO Activity Report for
February 26, 2004 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

2004/02/25

00:05 UT  S West	At the same PA as event on previous day at 15:30 UT
			(bright loop front, cavity, and inner structure),
			an apparently faster and much fainter front develops,
			while the inner structure of that previous event is 
			still under progress in C2 FOV, making it a complex
			event.  Difficult to give an exact time of first
			appearance. Gusty outflow follows.

02:30 UT  N Pole	Extremely faint elongated loop front developing toward
			N West. Despite its faintness, it can be discerned
			in C3 almost to the end of the FOV.

15:30 UT  N Pole	Extremely faint narrow ragged front. It fades in C3.

15:30 UT  S West	Narrow ragged front followed at 16:54 UT slightly to
			N by another ragged front. Trailing material well
			into next day.

16:30 UT  S East	Faint loop front followed at 22:30 UT by another 
			narrower loop front, from which the position of its
			southern leg matches that of the previous loop front.
			At the same time (22:30), a ragged loop front slightly 
			to N begins to fall down (apex at ~ 4.25 solar radii).
			The second front is barely visible in C3.

	18:00 - 20:40 UT	EIT Shutterless Mode (No C3 images)

2004/02/26

02:06 UT  N Pole	Diffuse faint front slightly to NW that fades in C2.
			At 02:00 UT EIT Fe XII running difference images show 
			a strong brightening in the NW quadrant (close to
			the central meridian) on AR 10564. No dimming is
			observed. Goes report a X1.1 X-ray flare on that AR
			between 01:50 UT and 02:10 UT with peak intensity at
			02:03 UT. At 08:06 UT a very faint and diffuse loop 
			front coud be guessed slightly above the limb on the 
			N Pole, but nothing can be said yet due to the data gap.
			
	08:30 - 16:05 UT	Temporary DSN Data Gap