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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-21T07:24Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

SOHO: LASCO/C3

Activity ID: 2026-03-21T07:24:00-CME-001 (version 2)

Note Keyword:

Faint: Faint event; may affect type assignment

OVR: Event partially overlaps with another CME

Source Signature Keyword:

Morphology Keyword:

O: Other

Note: Very faint, fuzzy front to the ENE in SOHO LASCO C2, dissipating after 3-4 early timestamps, also very faintly seen in SOHO LASCO C3 and not seen in GOES CCOR-1 and STEREO A COR2. No clear source found for this CME.

Version 1 submitted on 2026-03-21T18:52Z by Anna Chulaki
Version 2 submitted on 2026-03-21T23:50Z 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	Plane-of-sky	NONE	9.0	536.0	C	17.0	2026-03-21T13:37Z	The CME is not seen in STEREO A COR2 coronagraph and no clear source is found for it in EUV imagery.	Not modeled		Anna Chulaki on 2026-03-21T18:54Z

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