UCMEO 93001 51104
1930/
51103 60936 81200 0481/ 048// 323// 41053
51103 60938 81037 12284 14274 1122/
99999
PLAIN
SOHO/LASCO HALO CME November 03, 2025
C2 Start Time: 09:36 UT
C3 Start Time: 10:30 – 13:30 UT
Type of CME:
Partial HALO CME — FRONTSIDE
pa1: 48 pa2:
48 Total Width: 360 degrees
Velocity Measurements:
C2 2 points 533.8 km/sec @ PA 48
C3 8 points 1095.7 km/sec @ PA 48
Average through both fields: 1053.2 km/sec Acceleration:
19.71 m/sec^2.
COMMENT: A frontside, asymetric HALO event can be seen in LASCO C2/C3
in the Northeast limb starting @ 09:36 UT. This partial HALO can be
viewed in COR2-A in the Northeast direction commencing @ 09:23 UT. NOAA
reports a M5.0 solar flare deriving from AR 4274 beginning @ 09:38 UT.
According to SolarSoft, the M5.0 solar flare was accompanied by a M1.6
flare eruption found in the Northeast limb located in region [N22E84]
AR 4272. Opening lines near the Northeast limb appear in SDO/AIA 193
starting @ 08:45 UT with a solar flare eruption showing @ 09:24 UT.
GOES-19 SUVI Composite 195 Angstroms displays post-eruption arcades
accompanied by an EUV wave.
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/2025/251103/
Best Regards,
--Taylor Lanier
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
|
