UCMEO 93001 40122
1630/
40122 61036 91506 1131/ 282// 333// 30722
40122 60937 81058 ///// ///// 2221/
99999
PLAIN
SOHO/LASCO HALO CME January 22, 2024
C2 Start Time: 10:36 - 10:42 UT
C3 Start Time: 11:18 UT
Type of CME:
Asymmetric HALO CME — FRONTSIDE
pa1: 113 pa2: 282
Total Width: 191 degrees
Velocity Measurements:
C2: 5 points 874.5 km/sec @ PA
205.66
C3: 16 points 717.0 km/sec @ PA 205.46
Average through both(C2/C3) fields: 722.7 km/sec
Acceleration: -10.07 m/sec^2
COMMENT: LASCO C2/C3 show a bright partial halo CME.
The CME emerges with a bright leading edge from the south slightly
skewed to the west . The halo CME propagates towards the south with
cavity and core.The halo CMEs source is a
filament eruption on the south hemisphere of the disk taking liftoff at
approximately 9:54 UT. The eruption is followed by dual-ribbon post
eruptive arcade.
STEREO Beacon Data COR2 A, due to gaps in data from 10:23 - 15:23 UT,
the CME could not be captured. Preliminary time/height
could not be gathered 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/2024/240122
Best Regards,
--James Tabourne
BT
[Images from original message are omitted here]
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