LASCO Activity Report for
March 19, 2003 SOHO Science Daily Meeting

Planner: K. Schenk, G. Lawrence

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

Planet Mercury is visible in C3 images,
moving R to L


2003/03/18

03:30 UT  N West	Very slow loop front along streamer,
			quite faint

06:06 UT  S East	Narrow loop front along streamer
			faster brighter fronts follow

06:54 UT  S West	Bright moderately narrow loop front with
			cavity and some trailing material

07:31 UT  E Limb	Narrow loop front with cavity

10:30 UT  E Limb	Narrow bright asymmetric loop front with
			slight cavity, wider and faster than 
			previous event

10:30 UT  S West	Bright moderately narrow loop front with
			cavity and some trailing material, interacts
			with earlier 06:54 event?

10:54 UT  N West	Fairly slow faint asymmetric loop front

12:30 UT  W Limb	Fast wide bright loop front, two images only
			at writing. X1.5 X-ray flare AR0314 S15W46.
			Spans ~120 deg with possible very faint
			extensions over both poles

12:54 UT  E Limb	Narrow bright front, slight cavity follows.
			Further similar events at 15:54, 18:54, 23:30

13:54 UT  HALO		Wide bright fast front in SW fills quadrant
			and into NW with fainter extensions through 
			SE and E to NE then faint extension over pole.
			Much trailing material in NW, also in SW along
			streamer which is subsequently largely removed

2003/03/19

01:31 UT  S West	Moderately narrow bright front along streamer,
			part of depletion process

02:30 UT  HALO		Bright loop front initially in SW and over pole
			is full halo CME by 03:06 though fastest and
			brightest in S. Some gusty outflow in SW

04:30 UT  E Limb	Narrow spray-like front, another at 09:54.
			Narrower and slower than similar events on
			previous day

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