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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-04T21:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2026-06-04T21:24:00-CME-001 (version 1)
Source Location: S07W23
Active Region Number: 14458
Note Keyword:
Faint: Faint event; may affect type assignment
FF: Event fails/disappears before exiting COR2
Source Signature Keyword:
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
O: Other
Note: Faint CME observed to the W in SOHO LASCO C2, fading into background after several frames. The source is likely AR 14458, with field line movement and dimming starting around 2026-06-04T20:22Z in SDO AIA 193 centered around S07W23. Additional dimming centered ~S25E30 triggered shortly after the first eruption. 
Version 1 submitted on 2026-06-05T17:15Z by Tony Iampietro
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 23.0 0.0 487.0 S 10.0 2026-06-05T02:50Z SOHO LASCO C2 only 3D analysis using the observed source longitude centered around W23, as such the parameters could vary slightly. CME fades after several frames in C2's field-of-view. 1: Result 1 (2.0 AU)
Earth = 2026-06-08T00:00Z
OSIRIS-APEX = 2026-06-08T22:00Z
2026-06-05T17:08Z Tony Iampietro on 2026-06-05T17:18Z



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