
LASCO Activity Report for
Febuary 21, 2001 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.
Points Of Interest
EIT bakeout and LASCO high cadence campaign ended ~20:00 UT 2/20/2001
All timimgs prior to that time are approximate, accurate to ~15 mins
due to only a small selection of the high cadence data being viewed.
2001/02/19
21:30 UT HALO (?) Bright front over E and NE with faint extensions
elsewhere. Certainly appears to surround ~270 deg.
No EIT data, checking other sources.
2001/02/20
12:35 UT S West Faint wide spray
13:35 UT W Limb Sequence of two fairly wide bright loops
15:00 UT N East Wide bright front fills whole sector, followed by
cavity and complex, helical core. High cadence
data for C2 and ~half of C3
17:00 UT N West Bright front with cavity and core, not as wide
as above event
20:36 UT S Pole Narrow ragged bright front
21:46 UT S West Bright feature ejected along streamer. Followed
by slow faint loops for rest of day
23:54 UT N West Narrow bright Y-type dsconnection feature, part
of 17:00 event?
2001/02/21
04:06 UT N East Slow loops begin to rise. 'Core-like' material
visible by ~11:06. Still in progress at end of data
06:30 UT S West Brightest feature within slow rising loops
(since 21:46)
11:30 UT N West Faint slow ragged loops
Web curator:
K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771