UCMEO 93001 40202
2130/
40210 62336 80330 0001/ 360// 213// 30663
40210 62256 82314 31213 13576 1212/
99999
PLAIN
SOHO/LASCO HALO CME February 10, 2024
C2 Start Time: 23:36 UT
C3 Start Time: 00:06 UT
Type of CME:
Asymmetric HALO CME — FRONTSIDE
pa1: 000 pa2: 360
Total Width: 360 degrees
Velocity Measurements:
C2: 5 points 776.6 km/sec @ PA 357.38
C3: 9 points 645.2 km/sec @ PA 357.43
Average through both(C2/C3) fields: 663.9 km/sec
Acceleration: -26.87 m/sec^2
COMMENT: LASCO C2/C3 show a faint full halo CME emerging fromall
directions with a bright core in the NW. Faint lines are seen in
C2/C3 propagating
outwards in all directions. The halo CME is result of a M9.0 flare
centered on S12W12(AR 3576). The flare is followed by dimming and EUV
wave seen best in SDO AIA 193. The flare is alos accompanied with
filament ejecta seen during and after the eruption in SDO/AIA 304.
NOAA/GOES reports a M9.0 flare 22:56/23:07/23:14 UT
STEREO Beacon Data COR2 A, due to gaps in data from 15:23 - 02:23
preliminary time/height
could not be completed at this time.
Preliminary UCMEO velocity and position measurements are delivered
first.
Images, movies, and time/height information for this event will be
available at:
https://umbra.nascom.nasa.gov/lasco/observations/halo/2024/240210_b
Best Regards,
--James Tabourne
BT
[Images from original message are omitted here]
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