
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