SOHO/LASCO Partial Halo CME 20131013

Halo Alert: halo-message.20131013

Subject: SOHO/LASCO Partial HALO CME 131013

UCMEO 93001 31015 1300/
31013 60125 81018 0471/ 240// 30579
31013 60024 80142 21722 11865 1112/
99999

PLAIN

SOHO/LASCO observed a Partial HALO CME on October 13, 2013. Event is first seen in
C2 at 01:25 UT as a multi-loop over the South. The front expands with extensions
PA 047-240 degrees for total coverage of 193 degrees in width. The event continues
into the C3 field beginning 02:06 to 10:318 UT leaving the C3 field of view at
30Rsun in the South. Temporary data gap in C3 04:54-09:30 UT.

Time/height measurements were marked to 5 points in C2 with speeds of 617.4 Km/sec
at position angle 147 degrees. The event is marked to 8 points in C3. Speeds average
through both fields to 579.3 Km/sec at PA 147 degrees. Acceleration 6.99 m/sec^s.

SDO/AIA 193 shows a flare of active region 11865 located [S22, E17] 00:24-01:42 UT.
The flare produces a dimming and a wave propagating over the lower South/Southeast
region on disk.

STEREO: BEACON Data
COR2 B, 01:25-05:40 UT expanding loops over the South and West hemisphere.
Preliminary time/height measure gives 504.7 km/sec velocity at LE.
EUVI B, 00:36-00:56 UT CME over the Southwest limb.
COR2 A, 10/12 22:39-04:24 UT data gap. Faint CME in progress over the South.
EUVI A, 10/12 22:45-05:15 UT data gap. n/a.

NOAA/GOES reports a M1.7 Xray flare of AR11865 00:12/00:43/01:05 UT.

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/2013/131013/

Best regards,

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

BT

SOHO/LASCO C2 Diff	SOHO/LASCO C3 Diff

STEREO/COR2 BEHIND	SDO/AIA 193 Diff	STEREO/COR2 AHEAD

STEREO/EUVI BEHIND	SDO/AIA 193A	SDO/AIA 304A

Time/Height Velocities and Plots

C2/C3

Click on Links below for additional information.

Halo Alert: halo-message.20131013

MPEG Movies

LASCO Software IDL Save Files (.mvi)