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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-20T15:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2026-06-20T15:12:00-CME-001 (version 1)
Source Location: N00W45
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
DIM: Dimming
Morphology Keyword:
Note: Faint CME seen to the SW in SOHO LASCO C2. The CME is not clearly visible in other coronagraph imagery, and the leading edge is faint. The potential source may be a region of dimming seen around N00W45 starting around 2026-06-20T11:00Z in SDO AIA 193 imagery. 
Version 1 submitted on 2026-06-20T18:59Z 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 45.0 -24.0 354.0 S 10.0 2026-06-21T00:42Z Measurement based on source location using SOHO LASCO C2 running difference imagery. 1: Result 1 (2.0 AU)
Mary Aronne on 2026-06-20T19:00Z



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