LASCO Activity Report for
May 30, 2006 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

Telemetry (TLM) Keyhole: 05/27/2006 - 06/14/2006
-----------------------

- EIT will be in CCD bakeout during the following period:

  . 05/26/2006 21:15 - 05:15 ==> Long pre-bake cal set.  
    EIT will have heaters on at ~ 02:00 UT.

  . 06/15/2006 08:00 UT heaters off, Bakeout ends.

  . 06/15/2006 16:00 - 00:40 UT post bake long cal set. 
    Observations expected to resume by 22:00 UT.

- LASCO will be in improved keyhole synoptics: 12 minute C2, 
  30 minute C3 cadences.

- The SOHO roll to -180 degrees is scheduled for June 6, 2006.  
  The LASCO safing schedule will be determined shortly.

2006/05/26 (Friday)

00:06 UT  WS West	Expanding and ragged loop front developing much faster
 			than the events reported to start at 19:31 UT on
		 	previous day. The C2 occulting disk is apparently
			fully covered by 02:30 UT on next day, the signal on
			E being just above the limb while on W the LE of the
 			event is already past the outer edge. The event is 
			first seen in C3 at 00:42 UT, just appearing above 
			the W Limb (barely visible on E, save for the presence
			of an elongated loop front, whose association to the
			main event is difficult to discern -if any-). The mean
 			plane-of sky speed of the LE at PA 250 was ~ 470 km/sec
 			showing a slight deceleration. GOES recorded a B5.4
 			X-ray flare on NOAA AR 10884 (S13W29) on 05/25 between
 			23:03 - 23:43 UT with peak emission at 23:28 UT. EIT 
			195 images show a CME signature developing from AR 
			10884 toward SSW starting on 05/25 at 23:12 UT.
 			Formation of a dimming region to SSW of AR starting 
			on 05/25 at 23:24 UT. The event has therefore been
			catalogued as a very faint and asymmetric Halo Event,
			frontsided.

06:54 UT  S West	Very faint and diffuse loop front that fades throughout
			C2.

08:54 UT  WN West	Faint ragged front starts to be discernible.

10:54 UT  S East	Faint and diffuse loop front. It fades throughout C2.

2006/05/27 (Saturday)

	  ES East	Some gusty outflow till around 09:00 UT.

12:48 UT  S West	Very faint jet-like front.

15:12 UT  WS West	Extremely faint and diffuse front that quickly fades.

19:12 UT  S East	Extremely faint front that quickly fades.

2006/05/28 (Sunday)

16:36 UT  S East	Ragged loop front, barely visible in C3.

18:00 UT  W Limb	Ragged front. It fades close to the inner edge of C3.

2006/05/29 (Monday)

21:12 UT  SS West	Very faint and diffuse front expanding toward the S
 			Pole.

2006/05/30 (Tuesday)

No significant activity...

Last C2 image available by the time of writing:  12:48 UT.