LASCO Activity Report for
November 26, 2007 SOHO Science Daily Meeting

Planner: K. Schenk, G. Stenborg

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:
*******************
11/15 - 12/02: 26 m keyhole
11/19 - 11/28: 34 m keyhole

* 11/19 11:00 UT - 11/24 11:00 UT: EIT CCD Bakeout 
 (EIT resumed observations on ~ 11/24 @ ~20:00 UT).

* 11/24 ~20:00 UT - 11:26 24:00 UT: EIT 171A cme watch in half res 
  (sm5) to support SECCHI program (12 min cadence).

* 11/27: S/C Maneuvers (SK and MM) 
  LASCO will close doors and safe for SOHOs maneuvers on 11/26 and EIT will
  then  begin 171A cme watch in full res with a 7 minute cadence thru 11/28
  22:00 UT where LASCO recovers.  We will stay in 171A thru 11/30 and change
  into 195 on 12/01.

* LASCO will continue with C2 pb orange filter 6 hr cadence, C3 pb orange 
  filter 12 hr cadence while possible during the keyhole period (only during   
  real-time contacts).

2007/11/21 (Wednesday)

	00:00 - 02:48 UT	LASCO Data Gap (C2 time).

	07:24 - 15:24 UT	LASCO Data Gap (C2 time).

	19:00 - 23:12 UT	LASCO Data Gap (C2 time).

23:12 UT  N East	Curved feature already under development after data 
			gap. It fades in C3, close to its inner edge.

2007/11/22 (Thursday)

No significant activity.

2007/11/23 (Friday)

	02:36 - 04:48 UT	LASCO Data Gap (C2 time).

	20:48 - 24:00 UT	LASCO Data Gap (C2 time).

No significant activity.

2007/11/24 (Saturday)

	09:36 - 13:24 UT	LASCO Data Gap (C2 time).

17:48 UT  WN West	Ragged fan-like front. It fades throughout C3.

18:36 UT  S West	Jet-like front.

19:48 UT  S West	Very narrow loop (jet-like, diffuse) front a little
			bit to N of previous event. 

23:06 UT  S West	Jet-like front.

2007/11/25 (Sunday)

19:27 UT  N Pole	Faint and diffuse spray-like front that quickly fades.

20:50 UT  EN East	Slow development of a system of faint loop fronts. 
			Difficult to give an exact time of first appearance.
			Twisted (rather circular) structure early on next day.
			
21:50 UT  N Pole	Jet-like front.

2007/11/26 (Monday)


Last C2 image available by the time of writing: 12:50 UT
Web curator: K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771