LASCO Activity Report for
November 02, 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

2004/11/01 (Monday)

00:54 UT  W Limb        Ragged loop front. GOES reported a B7.8 X-ray flare 
                        (N13W48) between 00:34 - 00:40 with peak emission at 
                        00:38 UT.
 
03:54 UT  W Limb        Bright loop front. By 04:06 UT, very faint extensions
			show up above the S and N Poles. Shortly afterward, a
			very tenuous 'full' halo seems to evolve in the C2 FOV.
			The loop front is first seen in C3 at 04:42 UT, above 
			the W Limb. The halo extensions are not discernible,
			either because they are too faint to be seen or because
			they are masked by the next 'energetic' event (06:06 UT).
			Please note that the angular extent of the loop front
			developing toward W is only ~ 90 deg (from PA ~230 -
			320). The mean plane-of-sky speed of the LE of the loop
			front at PA 271 was ~ 555 km/sec (based on C2 and C3
			data, C3 only a couple of points due to superposition
			with the following event).
			GOES reported an M1.1 X-ray flare on NOAA AR 10691
			(N12W49) between 03:04 - 03:26 with peak emission at
			03:22 UT, most likely asssociated to the events 
			described above. On the other hand, EIT 195 images
			show a strong brightening on the aforementioned AR at
			03:24 UT, followed by an intensity disturbance 
			travelling across the disk developing mainly toward W 
			and S. In summary, this event has therefore been
			determined as a very faint 'full' halo CME, frontsided,
			only seen in C2.

06:06 UT  W Limb        Big and very wide loop front and trailing material. 
                        Proton storm starting at ~06:30 (C2 time). The event is
                        faster than the previous one (mean plane-of-sky speed 
			of ~ 790 lm/sec at PA 271, based on C3 data), and it is
			first seen in C3 above the W Limb at 06:42 UT. By 08:18
			UT seems to have surpassed the CME reported to start at
			03:54 UT. EIT 195 images show a big CME coming from
			behind the W Limb, starting at 05:48 UT.          	

14:30 UT  W Limb	Elongated ragged loop front that fades throughout C3.
			It is preceded at 11:06 by a fainter and ragged front,
			masked in the trailing material of previous event.

2004/11/02 (Tuesday)

	
03:06 UT  W Limb	Elongated spray-like front.