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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-21T07:38Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-06-21T07:38:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
FIL: Filament eruption
Morphology Keyword:
Note: Narrow CME visible to the W in STEREO A COR2 imagery. It may be faintly visible to the W in SOHO LASCO C2 for a frame, but it is hard to tell for sure. The source of this CME appears to be filament ejecta from along the Western limb in STEREO A EUVI 304 imagery starting around 2026-06-21T07:15Z, possibly associated with old Active Regions 14464 and 14467 beyond the SW limb from STEREO A's point of view. 
Version 1 submitted on 2026-06-21T18:57Z by Carina Alden
A Notification with ID 20260621-AL-003 was sent on 2026-06-21T20:12Z

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 134.0 -4.0 668.0 C 14.0 2026-06-21T12:52Z Parameters based on best fit using STEREO A COR2 imagery and using SOHO LASCO C2's view of the possible associated front. Higher degree of uncertainty due to limited viewpoints. 1: Result 1 (2.0 AU)
Mars = 2026-06-24T22:00Z
Psyche = 2026-06-24T19:00Z
2026-06-21T17:22Z Carina Alden on 2026-06-21T18:58Z



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