LASCO Activity Report for
April 22, 2002 SOHO Science Daily Meeting

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

Data badly degraded as a result of ongoing proton storm.
Image cadences and exposure times somewhat disrupted.

2002/04/19

06:50 UT  N West	Narrow front along streamer, fades quickly

07:50 UT  S West	Narrow front along streamer, fades quickly

09:26 UT  N Pole	Faint narrow loop

13:27 UT  N East	Narrow well-defined loop along streamer, fades

13:50 UT  S West	Narrow bright front with cavity

16:50 UT  S East	Bright spray

20:26 UT  S West	Bright blob/narrow front

23:26 UT  N East	Bright fan 

2002/04/20

00:50 UT  S West	Bright front with some trailing material

06:26 UT  S Pole	Ragged front with much trailing material.
			EIT eruptive prominence. Core-like material
			moves highly non-radially

2002/04/21

01:27 UT  N East	Fairly wide ragged loop front along streamer,
			cavity and trailing material follow

01:27 UT  HALO		Wide bright front over W limb is full halo CME
			by 02:26 though faint in E. Extremely fast, 
			~2500km/s. X1.5 in AR9906 and prominence 
			eruption over S pole. Proton storm degrades
			subsequent data to time of writing

16:06 UT  S West	Fairly fast ragged front along streamer.
			cavity and some core-like material follow,
			data poor

2002/04/22

00:38 UT  S West	Similar event to previous but slightly slower

01:18 UT  S West	Ragged front, slower and narrower than
			previous events