UCMEO 93001 40206
2000/
40206 60224 80742 1251/ 293// 233// 40878
40206 60215 80246 33962 13575 1212/
99999
PLAIN
SOHO/LASCO HALO CME February 6, 2024
C2 Start Time: 2:24 - 2:36 UT
C3 Start Time: 2:42 - 3:06 UT
Type of CME:
Asymmetric HALO CME — FRONTSIDE
pa1: 125 pa2: 293
Total Width: 168 degrees
Velocity Measurements:
C2: 3 points 870.7 km/sec @ PA 236.33
C3: 13 points 861.3 km/sec @ PA 236.41
Average through both(C2/C3) fields: 878.0 km/sec
Acceleration: 4.95 m/sec^2
COMMENT: LASCO C2/C3 show a partial halo CME emerging from the SW
with a bright leading edge and core. The halo expands towards the SW
and wraps around toward the E as it propagates. The halo CME's source
is a M2.2 class fllare centered on S39W62(AR 3575).
The flare was accompanied with a filament eruption seen SDO AIA
171/131/193 and is followed by post-eruptive arcades and dimming.
NOAA/GOES reports a M2.2 flare from AR 13575 02:15/02:28/02:46 UT
STEREO Beacon Data COR2 A, Preliminary time/height
at 4 points of measurement gives a velocity of 921.9 km/s @PA 225.40.
STEREO COR2A shows a partial halo CME emerging from the SW beginning at
approximately 2:53 UT. The halo CME propagates outwards in the SW direction.
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/2024/240206
Best Regards,
--James Tabourne
BT
[Images from original message are omitted here]
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