| SOHO/LASCO
Halo CME 20250530 |
| UCMEO 93001 50828
1900/ 50530 62336 80136 0241/ 024// 333// 41271 50530 60015 80135 11212 141000 1112/ 99999 PLAIN SOHO/LASCO FULL HALO CME May 30, 2025 C2 Start Time: 23:36 UT C3 Start Time: 00:06 - 02:18 UT Type of CME: Asymmetric HALO CME — FRONTSIDE pa1: 24.1 pa2: 24.5 Total Width: 360 degrees Velocity Measurements: C2 3 points 1281.8 km/sec @ PA 24 C3 7 points 1162.1 km/sec @ PA 24 Average through both fields: 1271.8 km/sec Acceleration -44.8 m/sec^2. COMMENT: STEREO AHEAD EUVI 195 shows a long duration flare of AR 14100 at location [N12, E12] 00:15-01:35 UT. Opening field lines emerging from AR 14100 with dimming appearing along a nearby filament in AIA 193. Preliminary UCMEO velocity and position measurements will be delivered first. Images, movies, and time/height information for this event will be available at: https://umbra.nascom.nasa.gov/lasco/observations/halo/2025/250530/ Best Regards, --Taylor Lanier [Images from original message are omitted here] _______________________________________________ Soho-halo-alert mailing list Soho-halo-alert@lists.nasa.gov |
| SOHO/LASCO C2 Diff | SOHO/LASCO C3 Diff | SOHO/LASCO C2 |
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| SOHO/LASCO C3 | SDO / AIA 193 Diff | STEREO/COR2 AHEAD |
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| STEREO AHEAD EUVI 195 | SDO / AIA 193 | SDO / AIA 131 |
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