LASCO Activity Report for
July 23, 2002 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

C2 high-cadence pB sequence campaign now running.
C2 pB sequences being taken every hour at the expense
of 1 normal C2 image and 1 normal C3 image.
Campaign runs to 2002/08/02 (possibly later, TBD)

Planet Jupiter is now in C3's field of view, moving L to R
Planet Mercury is now in C3's field of view, moving R to L
Planet Mars is now in C3's field of view, moving L to R

The presumed source region of last week's backsided halo
CMEs has now traversed the SE limb - presently unnumbered


2002/07/22

09:30 UT  S Pole	Fairly faint loop front with slight cavity

12:30 UT  N West	Asymmetric front, quite faint and slow.
			Sequence of very faint loop fronts follow

13:31 UT  S Pole	Slow narrow blob like front, expands through C2

16:42 UT  N East	Narrow spray-like front

2002/07/23

00:42 UT  HALO		Fast wide bright front over E limb is full
			halo CME by 01:42, though emission in E is 
			faint and 'shock-like' as opposed to bright
			CME material. Much trailing material in E.
			X4.8 X-ray flare AR0039(?) S12E73

03:30 UT  N West	Bright loop front along streamer with much
			trailing material. Large part of streamer 
			removed

	04:30 - 07:31 UT	Temporary DSN data gap

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