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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-09-11T14:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2026-09-11T14:36:00-CME-001 (version 1)
Note Keyword:
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: CME visible to the NW in SOHO LASCO C2/C3. The CME is obscured by the pylon in GOES CCOR-1 imagery and is not clearly visible in STEREO A COR2. The potential source may be an eruption from AR 14521 (N09W77) in SDO AIA 193 starting around 2026-09-11T11:52Z, best seen as moving field lines. 
Version 1 submitted on 2026-09-11T18:45Z by Mary Aronne
No Notification has been sent for this activity yet.

The List of CME Analysis already entered:
Event Type Catalog
Measurement TypeCME measurement type: Leading Edge (LE), Shock Front (SH), Right Hand Boundary (RHB), Left Hand Boundary (LHB), Black/White Boundary (BW), Prominence Core (COR), Disconnection Front (DIS), Trailing Edge (TE).
Prime?"primary flag" which is either True or False. If there are multiple CME analysis entries for a single CME, this flag would indicate which analysis is considered most accurate per measurement type. This is a helpful flag if you would like to download only one most accurate CME analysis per CME per Measurement Type
 Technique Long Lat Speed Type Half Width Time 21.5 Note WSA-ENLIL+Cone Result(s) Measured On Submitted By
CME Analysis M2M_CATALOG LE true SWPC_CAT 75.0 49.0 309.0 S 27.0 2026-09-12T01:10Z Measurement based on source location using SOHO LASCO C2/C3 imagery only. Not modeled Mary Aronne on 2026-09-11T18:47Z



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