LASCO Activity Report for
March 13, 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

KEYHOLE Operations:
-------------------
* Feb 22 - Mar 21: 26 m Keyhole.
* Feb 28 - Mar 16: 34 m Keyhole.

- S/C Roll on 2006/03/13.

- 2006/03/13 @ ~ 06:00 UT: End of Brueckner Plumes Study. 
  Afterward: Improve C2/C3 cadence for the rest of the Keyhole: 
  12 min cadence for C2, 30 min cadence for C3.

- "Brueckner Plumes study" resumed after S/C Maneuvers. Observing plan 
   will run until next Roll Maneuver (expected to occur on 2006/03/13). 

- S/C Maneuvers (Station Keeping and Momentum Management) on 2006/03/07 
  ==> LASCO safed for maneuvers on 2006/03/06 @ ~19:30 UT. LASCO recovery 
  on 2006/03/10 (due to DSN & Mars explorer) @ 02:30 UT.

- LASCO run a version of the "Brueckner plumes study" of Mar 21 1997 prior 
  to the S/C maneuver (32x13 LOCS block FOV over the South pole including the
  coronal hole, starting on 2006/02/28 @ 03:45 UT; the sequence was C2
  orange/clear filters, 100 sec exp, 5 min cadence). In addition, there were
  FFFres C2 and C3 at 1 hr cadence for the web and daily orange/blue fielding
  images and orange filter pB sets. 

- EIT CCD Bakeout bewtween 2006/02/28 03:00 UT - 2006/03/18.

2006/03/10 (Friday)

	First Full Field C2 image after recovery: 02:42 UT
	First Full Field C3 image after recovery: 02:47 UT

02:42 UT  N West	Slow development of a system of loops already under
			development. Elongated loop front follows by ~ 
			16:05 UT on WNW.  Gusty outflow all across the 
			western limb well into next day. 

17:05 UT  E Limb	Diffuse front slightly developing toward ESE. It
			fades throughout C2.

2006/03/11 (Saturday)

07:05 UT  N West	Diffuse front develops as a diffuse and ragged loop
 			front.

14:05 UT  WS West	Bright loop front. GOES recorded a B3.4 X-ray flare
			on NOAA AR 10856 (S10W90) between 13:22 - 14:51 UT 
			with peak emission at 14:00 UT.

2006/03/12 (Sunday)

	  WS West	Gusty outflow and small ragged fronts along the day.

02:05 UT  NN West	Diffuse jet-like front toward NW.

2006/03/13 (Monday)

	10:24 - 15:24 UT	Temporary DSN Data Gap.

	Last C2 image before closing doors for S/C Roll: 15:05 UT
	Last C3 image before closing doors for S/C Roll: 15:18 UT

Note:
-----
LASCO closed doors @ 15:25 UT ahead of S/C Roll.
LASCO will resume operations @ ~ 21:00 UT.