Subject: SOHO/LASCO Partial HALO CME 131008

UCMEO 93001 31010 2040/
31008 62200 80930 3271/ 130// 123// 30344
31008 61733 80042 14629 ///// 2212/
99999

PLAIN

SOHO/LASCO observed a partial HALO CME on October 08, 2013.  Event is first seen
in C2 at 22:00 UT as faint multi-loops over the North and Northeast.  The event
expands with extensions PA327 to PA130 for a total width of 163 degrees. The
event continues into the C3 field beginning 23:45 to 09:30 UT where it dissipates
at 28 Rsun. 

Time/height measurements were marked to 11 points in C2 with speeds of 247.9 Km/sec
at position angle 47 degrees. The event is marked to 11 points in C3.  Speeds average
through both fields to 344.2 Km/sec at PA 47 degrees.  Acceleration 16.69 m/sec^2.


SDO/AIA 193/304 show an eruptive filament on the East limb at [N34] 07:36-12:00 UT.
Part of this channel is still intact which activates at location  [N29, E46] and
erupts 17:33-00:42 UT with dual ribbon flaring on disk.  Eruption of this event
triggers the lower channel at location [N03, E08] which erupts 18:00-20:30 UT
producing flaring on disk and a dimming of the area.

STEREO: BEACON Data
COR2 B, 10/08 10:55-21:25 UT data gap. 22:25 UT expanding multi-loop CME.
10/08 23:40-05:55 UT data gap.
Preliminary time/height measure:  n/a
EUVI B, 10/08 10:56-21:00 UT data gap.  n/a.
COR2 A, 10/08 15:39-04:24 UT data gap. n/a
EUVI A, n/a

The observation of this event is considered 'FAIR'. This CME is determined a FRONTSIDED event.

Images and movies and time/height information for this event is available on the web at:

http://umbra.nascom.nasa.gov/lasco/observations/halo/2013/131008/

Best regards,

Kevin Schenk
Solar Heliospheric Observatory
EIT and LASCO Operations
NASA-Goddard Space Flight Center, USA

BT