UCMEO 93001 30807
1550/
30805 60700 81206 0001/ 360// 233// 41044
30805 60616 80810 40769 13386 1222/
99999
PLAIN
SOHO/LASCO HALO CME August 5, 2023
C2 Start Time: 7:00 UT
C3 Start Time: 7:30 UT
Type of CME:
Asymmetric HALO CME — FRONTSIDE
pa1: 000 pa2: 360
Total Width: 360 degrees
Velocity Measurements:
C2: 4 points 1089.5 km/sec @ PA 255.52
C3: 13 points 1017.6 km/sec @ PA 255.32
Average through both(C2/C3) fields: 1044.5 km/sec Acceleration: -20.79 m/sec^2
COMMENT:
LASCO C2/C3 show a CME with a bright core emerging from the SW and
propagating westward, the CME quickly loops around the east into a full
Halo CME. The event is associated with a M1.6 class solar flare
centered on N07W69 (AR 3386) that is not visible on SDO AIA due to an
eclipse occuring during the time of the event.
LASCO shows extreme proton flux in the field of view. (SEP)
NOAA/GOES reports a M1.6 flare from AR 3386 06:16/07:22/08:10 UT
STEREO Beacon Data
COR2 A, shows a bright core CME emerging from the West 7:23 - 10:23 UT.
Preliminary time/height measure gives 1145.4 km/sec @ 248 degrees.
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/2023/230805
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
|
