UCMEO 93001 40603
1500/
40601 61900 80018 0002/ 360// 123// 40920
40601 ///// ///// ///// ///// /////
99999
PLAIN
SOHO/LASCO HALO CME June 1, 2024
C2 Start Time: 19:00 UT
C3 Start Time: 19:30 UT
Type of CME:
Symmetric HALO CME — BACKSIDE
pa1: 000 pa2: 360
Total Width: 360 degrees
Velocity Measurements:
C2: 4 points 915.0 km/sec @ PA 108.27
C3: 10 points 916.2 km/sec @ PA 108.40
Average through both(C2/C3) fields: 920.8 km/sec
Acceleration: -9.38 m/sec^2
COMMENT:
LASCO C2/C3 shows a full asymmetric halo CME emerging from the East
with
a bright leading edge. As the halo CME propagates outwards in all
directions, it wraps around to the NW into a full halo. The source of
this CME is likely a backsided eruption as evidence of faint field
lines beyond the east limb seen starting at 18:39 in AIA 171.
STEREO Beacon Data COR2 A, due to gaps in data from 21:23 UT - 01:23 UT
preliminary time/height measurements could not be performed 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/2024/240601
Best Regards,
--James Tabourne
BT
[Images from original message are omitted here]
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