SOHO/LASCO HALO CME 120614

UCMEO 93001 20703 1920/
20614 71436 81930 1711/ 170// 223// 30981
20614 61300 81615 20617 11504 1112/
99999

PLAIN

SOHO/LASCO observed a HALO CME on June 14, 2012.  Event is first seen in C2 at
12:36 UT in progress at first frame as a full symmetric HALO. The loop LE
with core mateial over the South pole and close to edge of field.
The event continues into the C3 field beginning 14:30-19:30 UT out to the edge of field
at 30 Rsun in the South.

Time/height measurements were marked at 1 points in C2.
The event is marked to 7 points in C3.  Speeds average through both fields
to 980.7 Km/sec at PA 172 degrees. Acceleration of -54.85 m/sec^2. 

SDO AIA 193 shows a flare of AR 11504 located [S17,E06] with a dimming around
the AR area and a wave to the south.

STEREO: HR data
COR2 B,  14:24 UT, expands to an asymmetric halo (west) by 15:24 UT 
Preliminary time/height measure gives 1206.7 km/sec velocity at LE.
EUVI B 195, 13:10-14:40 UT cme from behind limb in the west.
COR2 A, 13:54 UT cme expands to an asymmetric halo east.
Preliminary time/height measure gives 1208.1 km/sec velocity at LE.
EUVI A 195, 13:25-15:00 UT cme from behind east limb.

NOAA reports an M1.9 Xray flare 12:52-15:56 UT from AR 11504 at location [S17,E06]

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

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

http://umbra.nascom.nasa.gov/lasco/observations/halo/2012/120614/

Best regards,

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

BT