LASCO Activity Report for
August 5, 2005 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

2005/08/04 (Thursday)

00:06 UT  E Limb	Slow (at least at the very beginning) development of a
			faint loop since late on previous day that later
			superposes in the LOS with a not-well-defined and 
			diffuse structure. See next event for further details.

06:30 UT  E Limb	The diffuse structure mentioned in previous event
			develops as an expanding and aparently twisted big
			structure apparently affecting the development of 
			previous event. It is difficult to precise the time of
			first appearance, though by 06:30 UT it starts to be
			rather well discerned. The mean plane-of-sky speed of 
			its LE was ~ 370 km/sec at PA 108, showing an slight
			acceleration (based on C3 data). GOES reported a C8.4
			X-ray flare on NOAA AR 10794 (S15E28) between 05:25 -
			06:22 UT with peak emission at 05:59 UT. EIT 195 images
			show between 05:48 - 09:00 UT a dimming and wave at 
			least 180 deg in extent toward west.

01:54 UT  N West	Very elongated and narrow loop front.

	10:00 - 11:15 UT  	ICAL01 (Intercalibration for EIT with CDS).
				NO LASCO C2/C3 images.

20:30 UT  E Limb	Extremely faint and diffuse front.

23:30 UT  W Limb	Slow development of a system of loop. By the beginning
			of next day, an elongated an apparently twisted 
			structure can be seen.

2005/08/05 (Friday)

08:54 UT  N East	Doupble loop front: one developing toward East, and the
			other one developing as an asymmetric and expanding loop
			front toward NE, spanning up to past the N Pole. Some
			faint and not-well-defined fronts follow to N - NE. GOES
			reported a long duration C2.8 X-ray flare on NOAA AR
			10792 (N15W18) between 06:59 - 08:45 UT with peak
			emission at 07:59 UT. EIT 195 images show a brightening
			at 07:13 UT followed by a dimming/wave toward NE.

Time of the last C2 image under analysis: 14:06 UT.