
LASCO Activity Report for
July 18, 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
Additional stray light in C3 images now removed
during standard image processing.
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 C2's field of view, moving L to R
Planet Mercury is now in C3's field of view, moving R to L
2002/07/17
07:31 UT N East Wide bright loop front with some core-like
material. Initially over N pole but soon
fills quadrant. Gusty outflow in NE for
rest of day
14:06 UT S East Sequence of very faint ragged fronts
2002/07/18
08:06 UT HALO Faint front in NW is full halo CME by 08:42
though faint in S. Fairly fast with small
amount of trailing material mainly in NW.
X1.8 X-ray flare AR0030 N19W30
11:42 UT HALO Wide bright loop front just visible in E,
spans ~200 deg crossing both poles by
12:30, also very faint emission around rest
of occulting disk. Probably backsided
Web curator:
K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771