LASCO Activity Report for
June 15, 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

EIT 195 CME watch will be interrupted on 2004/06/15 (Tuesday) at 15:00 UT.
EIT bakeout calibrations begin. EIT bakeout through 2004/07/04 (Sunday).

MERCURY entered the C3 FOV (from the right) on 2004/06/12 (Saturday).

SOHO Telemetry Submode changed to Submode 5 on 2004/04/13 at 16:00 UT 
(SUMER began observing on 2004/04/14). SUMER campaign runs until 2004/06/17.
In other words, LASCO synoptic observation plan cadence remains the same
but the EIT CME watch images will be reduced to half-resolution (512x512)
during that period.

2004/06/14 (Monday)

	  WS West 	The bright ragged loop front and twisted trailing
			material reported to start at 23:26 UT on previous day
			continues development.

06:26 UT  N Pole	Extremely faint loop front. It is difficult to give an 
			exact time of first appearance due to its faintness.
			It fades throughout C3.

10:50 UT  E Limb	Material falling down ('V-shaped' feature), starting at
			around 4.10 solar radii (PA ~90 deg), in the gusty
			outflow present above the East Limb.

18:26 UT  WS West	Faint and elongated diffuse loop front. It fades close
			to the inner edge of C3 FOV.

20:59 UT  NN West	Extremely faint and diffuse loop front. Barely discerned
			in C3 (and only close to the inner edge).

2004/06/15 (Tuesday)

02:26 UT  N East	Diffuse front ahead of bright loop front with twisted
			inner part. EIT Fe XII running difference images show
			signatures of the development of a limb event starting
			early in the day.

07:50 UT  S West	Bright loop front with twisted inner part. EIT Fe XII
			running difference images show a CME signature starting,
			apparently just behind the SW Limb, at 05:48 UT.

08:26 UT  N East	Ragged front developing superimposed in the LOS with 
			event reported to start at 02:26 UT. Difficult to
			give an exact time of first appearance. For the time
			being it is also difficult to discern if it is part of
			the event at 02:26 UT or an even coming from a different 
			source.