LASCO Activity Report for
May 19, 2008 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

KEYHOLE Operations:
-------------------
2008/05/07 - 2008/05/25: 26 m keyhole
2008/05/11 - 2008/05/21: 34 m keyhole

- LASCO closed doors on Sunday 2008/05/18 @ 21:30 UT in prep for
  for S/C Maneuvers (SK, MM. and Roll) on 05/19.
- LASCO will resume observations on Wednesday 2008/05/21 @ 00:30 UT.

- EIT CCD Bakeout Plan: 2008/05/16 18:30 UT - 2008/05/22 05:00 UT.
  Observations will then resume on 05/22 @ ~ 16:00 UT.
  During Bakeout period: LASCO in improved synoptics ==> C2 @ 12 min
  cadence, C3 @ 30 min cadence.
  
- Between 05/16 - 05/22, LASCO will remain idle during the telemetry 
  no-record outage periods.   

2008/05/16 (Friday)

04:54 UT  S East	Ragged elongated loop front. Blob-like front
			discernible in the trail by 09:30 UT.

15:30 UT  S East	Faint ragged front becomes discernible in the 
			of previous event.

2008/05/17 (Saturday)

10:36 UT  E Limb	Bright loop front surrounded by diffuse and 
			very faint extensions (ahead, and well to the 
			N and S). The (very asymmetric) extensions seem
			to cover the C2 occulting disk after midday
			(the signal on W is just barely discernible, 
			while on E is well past the outer edge of the 
			FOV). The bright loop front is first seen in C3 
			at 11:18 UT. The width of the main loop-like
			structure in C3 at 13:18 UT is ~ 40 deg. The 
			diffuse (and very faint) extensions span all the 
			way from the SE Limb up to almost past the N Pole. 
			The plane-of-sky speed of the LE of the bright 
			loop-like structure at PA 94 is ~640 km/sec 
			(based on C3 data) showing practically no 
			acceleration. GOES recorded a B1.7 X-ray event 
			between 10:05 - 10:32 UT with peak emission at 
			10:16 UT (from NOAA AR 10996).

2008/05/18 (Sunday)

	10:24 - 20:57 UT	LASCO Data Gap (C2 time).

	LASCO close doors at 21:30 UT in prep for the
	SOHO S/C Maneuvers on 05/19 @ ~ 16:00 UT.

Last C2 image before closing doors:  21:12 UT
		

2008/05/19 (Monday)

	LASCO doors closed.