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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-09-06T21:53Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-09-06T21:53:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
GAP: Data gap
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FIL: Filament eruption
Morphology Keyword:
Note: Very faint feature seen only seen to the NE part way into the FOV of STEREO A COR2 after a data gap ending at 2026-09-06T21:53Z. A possible source candidate is a small amount of ejecta seen over the ENE limb in SDO AIA 304 beginning around 2026-09-06T18:35Z. 
Version 1 submitted on 2026-09-07T01:19Z by Elizabeth Juelfs
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 Plane-of-sky NONE 28.0 285.0 S 12.0 2026-09-07T06:17Z Plane-of-sky measurement chosen due to single coronagraph perspective and beyond-limb source candidate. Not modeled Elizabeth Juelfs on 2026-09-07T01:20Z



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