LASCO Activity Report for April 22, 2010
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

SOHO telemetry keyhole #29 begins. What is a Keyhole?  Click here  for more descriptive information.
SOHO will be in the keyhole period April 21 - May 3, 2010.  During this time, data that is
recorded on-board SOHO during the gaps in contact is delayed until it is dumped and transmitted
on a high-rate station.  This will be noted below as "temp data gap" periods.  The delay can
sometimes be a week long. So please bear with us.  For a DSN pass schedule  Click here.

2010/04/19 (Monday)

16:30 UT NNW@315°	Helmut front at beginning with jet-like feature.  By 17:30 UT a bright
			loop front with cavity and core rises with the first feature. Possibly
			related. Event expands, multiloop, multilayer, with twisted structure.
			Click Here for 2010/04/19 22:06 Image  

2010/04/20 (Tuesday)

06:30 UT NE@77°		Asymmetric loop/puff over occulter.  Impulsive eruption causes 
			expansion of material to break away with minor reconnection.

		22:30 - 05:50 UT  temp data gap.

2010/04/20 (Tuesday)

		11:06 - 18:50 UT  temp data gap. 

2010/04/21 (Wednesday)

		00:30 - 06:20 UT  temp data gap.

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