LASCO Activity Report for April 29, 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.

Cluster of comets in Lasco:  They are all faint and found using image differencing movies.
These times are first frame seen in C2.

	4/26 09:36 UT Kreutz group coming in from bottom left
	4/26 12:12 UT Kreutz group 
	4/27 18:48 UT Kreutz group
	4/27 23:05 UT Meyers group in the north. From left to right above occulter

2010/04/23 (Friday)

05:54 UT SW@258°		Faint asymmetric puff, dissipates quickly.

23:54 UT East@87°	Small bright loop front with cavity, Southward shift.

2010/04/24 (Saturday)

		06:54 - 15:54 data gap (VGM)

2010/04/25 (Sunday)

00:30 UT SSW@223°	Small jet, dissipates quickly.

12:06 UT NNE@36°		Narrow jet, expands with continued flow.

16:30 UT SSW@230°	Quick narrow jet.

18:30 UT West@268°	Faint spray.

2010/04/26 (Monday)

Quiet Corona at this time.

2010/04/27 (Tuesday)

		22:24 - 02:24 UT data gap (VGM)

Quiet Corona at this time.

2010/04/28 (Wednesday)

15:54 UT NE@81°		Small burst, dissipates quickly.

23:26 East@90°		Wide faint symmetric loop over East. PA 26 - 114° wide.

2010/04/29 (Thursday)

Quiet Corona at this time.

Responsible NASA Official:
Privacy Policy and Important Notices
Web curator: K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 671
Greenbelt, MD 20771