LASCO Activity Report for
November 17, 2004 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

SOHO is in Telemetry Submode 5 since 2004/11/08 @ 22:15 UT. While in Submode 5, 
half resolution EIT 195 CME watch (512x512).


2004/11/16 (Tuesday)

02:50 UT  W Limb	Ragged loop front preceded by a wide and diffuse front
			that spans up to above the NW Limb. Infalling material
			on WSW.

04:50 UT  W Limb	Another similar ragged front.

06:26 UT  N East	Very bright loop front followed apparently by another
			bright front. Trailing material. The mean plane-of-sky
			speed of the LE at PA ~ 50 deg was ~ 435 km/sec showing
			practically no acceleration (based on C3 data). Please
			note that already since 04:26 UT (C2 time) an excess
			intensity is seen above the NE Limb. Some asymmetric
			fronts are discernible in the trailing material, in
			particular one at ~ 17:36 UT (on E).

11:50 UT  S West	Very faint and diffuse elongated loop front. It fades
			throughout C2.

14:50 UT  S West	Another very faint and diffuse loop front. It fades 
			close to the inner edge of C3.

19:27 UT  W Limb	Slow development of a system of loops. Difficult to 
			give an exact time of first appearance.

21:50 UT  ES East	Faint loop front that fades close to the inner edge
			of C3.

23:26 UT  W Limb	Elongated ragged loop front with structured interior 
			almost superposed in the LOS with event reported to start
			at 19:27 UT. Gusty outflow into next day. The event
			develops slightly toward WSW. The development of the 
			slow system of loops seems to be affected by this event,
			though it is difficult to say.

23:50 UT  N East	In the aftermath of event at 06:26 UT, much gusty 
			outflow on NE well into next day after a narrow front
			that seems to form at around 23:50 UT.

2004/11/17 (Wednesday)

09:26 UT  E Limb 	Narrow loop front.

12:06 UT  E Limb	Small and bright ragged loop front accompanied by a 
			fainter and ragged loop front to S.


Web curator: K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771