
LASCO Activity Report for
April 17, 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
Proton fluxes in C2 and C3 have returned to near-normal level.
Mercury presently in C3's field of view, moving right to left
Details of C3 transits are available at D. Biesecker's SOHO comet website.
2001/04/15
00:30 UT S West Faint wide fan
01:31 UT S West Faint front leads brighter radial features.
Some ragged outflow
09:06 UT N West Faint front. Backsided?
09:30 UT W Limb Narrow bright spray
11:30 UT S West Bright ragged front with cavity and loops core
14:30 UT W Limb Wide fast bright front with cavity and faint core.
X14 flare in AR 9415. Front spans 180 deg by
14:54. Proton event, poor data for next ~12 hrs
20:01 UT S West Ragged front
2001/04/16
00:57 UT S West Brightest feature(s) in gusty outflow
06:15 UT S West Faint spray
06:37 UT N East Large faint blob
10:46 UT N East Very narrow jet along streamer
13:13 UT N West Bright narrow front along narrow streamer
15:07 UT E Limb Faint spray
19:10 UT S West Very faint spray
20:41 UT S West Fairly wide ragged front with cavity and
prolonged gusty outflow
2001/04/17
08:06 UT N East Ragged front along narrow streamer widens in C2.
Very faint slow loops follow, brighter front
follows at 13:31
08:30 UT W Limb Faint spray, also very faint narrow front
somewhat to N.
12:30 UT S West Faint spray
Web curator:
K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771