LASCO Activity Report for
September 09, 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

2004/09/08 (Wednesday)

	  E Limb	Gusty outflow and several small ragged fronts all
			along the day (e.g.,: ~ 02:06, 04:06, 05:30, 07:31, 
			10:30, and 16:30 UT). GOES recorded a C1.5 X-ray flare
			from N05E85 between 00:59 - 01:26 UT with peak emission
			at 01:10 UT.

02:30 UT  N East	Ragged and elongated loop front that fades throughout C3.

02:30 UT  S West	Superposed in the LOS with event at 18:54 UT on previous
			day a faint ragged front develops moving apparently 
			faster. More similar fronts afterward.

04:30 UT  S Pole	Faint and elongated front. Gusty outflow toward S,
			rotating with the Sun toward W. GOES recorded a B9.0
			X-ray flare from NOAA AR 10699 (S05E02) between 03:41 -
			03:57 UT with peak emission at 03:49 UT.

12:30 UT  WS West	Not well defined faint and diffuse front becomes
			discernible.

	14:00 - 15:30 UT	LASCO Data Gap due to ICAL01 
				(Intercalibration EIT/CDS)

18:54 UT  S East	Diffuse elongated loop front that quickly fades.

19:31 UT  ES East	Initially bright elongated loop front preceded at 
			18:54 UT (a little bit to N) by a narrow ragged front.
			They fade throughout C3.

23:06 UT  ES East	Spray-like front.

2004/09/09 (Thursday)

01:54 UT  E Limb	Narrow and asymmetric expanding loop front.

02:54 UT  S West	Faint elongated and ragged loop front. It fades
			throughout C3. Infalling material to N.
	
06:06 UT  E Limb	Bright and wide loop front, cavity and inner core.
			Trailing material. The loop front is preceded by a
			narrow front at around 05:06 UT. EIT Fe XII running 
			difference images show signatures of a CME, barely
			backsided, above the E Limb starting at ~ 04:48 UT.
			Post event loops can be seen afterward developing just
			above the E Limb.

09:30 UT  W Limb	Slow development of a faint system of asymmetric loop
			fronts. Difficult to give an exact time of first
			appearance.