UCMEO 93001 40115
1930/
40114 61148 81618 1321/ 308// 213// 40776
40114 61130 81222 40189 13543 1212/
99999
PLAIN
SOHO/LASCO HALO CME January 14, 2024
C2 Start Time: 11:48-12:00 UT
C3 Start Time: 12:18-12:30 UT
Type of CME:
Asymmetric HALO CME — FRONTSIDE
pa1: 132 pa2:
308 Total Width: 184 degrees
Velocity Measurements:
C2: 5 points 728.5 km/sec @ PA
256.48
C3: 12 points 771.1 km/sec @ PA 256.57
Average through both(C2/C3) fields: 776.7 km/sec
Acceleration: -7.56 m/sec^2
COMMENT: LASCO C2/C3 show a bright partial halo CME.
The CME emerges with a bright leading edge and core from the south west
direction and continues to propagate towards that direction. The
partial halo has bulk presence in the south west while never fully
wrapping around into a full halo. The halo CMEs source is associated
with AR 13543 which recently rotated off the limb, beginning at 11:30
UT seen best in SDO AIA 171,193.
LASCO shows extreme proton flux in the field of view. (SEP)
NOAA/GOES reports a C9.6 flare from AR 13543 11:30/12:06/12:22 UT
STEREO Beacon Data COR2 A, due to gaps in data from 10:38 - 15:53 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/2024/240114
Best Regards,
--James Tabourne
BT
[Images from original message are omitted here]
________________________________________________
Soho-halo-alert mailing list
Soho-halo-alert@mail.nascom.nasa.gov
https://mail.nascom.nasa.gov/mailman/listinfo/soho-halo-alert
|
