SOHO/LASCO Halo CME 20230710

Halo Alert: halo-message.20230710

UCMEO 93001 30710 1800/
30710 60400 80712 0001/ 360// 233// 41093
30710 60330 80422 31548 13358 2221/
99999

PLAIN

SOHO/LASCO HALO CME July 10, 2023 FRONTSIDE

C2 Start Time:      4:00 UT

C3 Start Time:      4:30 UT

Type of CME:
Assymmetric HALO CME — FRONTSIDE
pa1: 000      pa2: 360       Total Width: 360 degrees

Velocity Measurements:

C2:    5 points     1085.9 km/sec @ PA 226.40
C3:    12 points   1058.9 km/sec @ PA 226.57

Average through both(C2/C3) fields:      1093.0 km/sec Acceleration: -38.18 m/sec^2.

COMMENT: LASCO C2/C3 show a Halo CME in the SW region. The flare is associated with filament eruption starting at approximately 03:20 UT, most visibly seen in SDO/AIA 94, and 131. The flare was centered at S15W48 (AR 3358) with a GOES Class of M2.4.


Preliminary UCMEO velocity and position measurements are delivered first.

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