SOHO/LASCO Halo CME  20130405
COMMENTS: BACKSIDE Partial HALO CME resulting from a flare of an AR located [N19, E111] seen in STEREO/EUVI B
                          LASCO velocity:  596.5 km/sec at  PA 81 degrees.  Acceleration:  14.95
                        

Halo Alert: halo-message.20130405


SOHO/LASCO Partial HALO CME 130405 BACKSIDED

UCMEO 93001 30405 2030/
30405 60636 81518 3472/ 187// 333// 40597
30405 60603 80656 ///// ///// 1112/
99999

PLAIN

SOHO/LASCO observed a partial HALO CME on April 05, 2013.  Event is
first seen in C2 beginning 06:36 UT with a bright loop over the East.
The event expands with extensions PA 347-187 degrees for total coverage
of 200 degrees in width.  The event continues into the C3 field
beginning 07:30-15:18 UT where it leaves the field of view in the East.

Time/height measurements were marked at 5 points in C2 with speeds of
481.6 Km/sec at PA 81 degrees. The event is marked to 12 points in C3. 
Speeds average through both fields to 596.5 Km/sec at PA 81 degrees.
Acceleration 14.95 m/sec^2.

SDO AIA 193 shows backside emission 06:03-07:15 UT with material
over the East.

STEREO: BEACON data
COR2 B, 07:24-12:24 UT, asymmetric halo cme over the west.
Preliminary time/height measure gives 535.7 km/sec velocity at LE.
EUVI B 195, 06:06-06:56 UT flare of AR on disk at location [N19, E111].
The flare produces a dimming and a wave with a bright post arcade.
COR2 A, 07:39-11:24 UT, expanding partial HALO over the west with cavity
and core.
Preliminary time/height measure gives 583.4 km/sec velocity at LE.
EUVI A 195, A cme from behind the NW limb beginning at 06:25 UT.

The observation of this event is considered 'GOOD'. This CME is determined BACKSIDED.
 
Images and movies and time/height information for this event is available on the web at:

http://umbra.nascom.nasa.gov/lasco/observations/halo/2013/130405/

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
 SDO/AIA 193 Diff
20130405_081206_c2rdiff.gif
 20130405_095405_c3rdiff.gif
 20130405_061206_aia_193_dif.gif






STEREO/COR2 BEHIND
 STEREO/EUVI 195 BEHIND
 STEREO/COR2 AHEAD
20130405_092458_cor2_behind_rdiff.gif
 20130405_062404_euvi_195_behind_diff.gif
 20130405_092423_cor2_ahead_diff.gif
STEREO/EUVI BEHIND
 SDO/AIA 304
 SDO/AIA 193
20130405_062604_euvi_195_behind.gif 20130405_080607_aia_304.gif 20130405_080906_aia_193.gif


SOHO/LASCO C2
20130405_0812_D2_combo.gif
SOHO/LASCO C3
20130405_1030_D3_combo.gif


Time/Height Velocities and Plots

C2/C3
20130405_c2c3_ht.gif

Click on Links below for additional information.

MPEG Movies


LASCO Software IDL Save Files (.mvi)




  • Please, send questions and comments to Kevin Schenk