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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-26T23:12Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

SOHO: LASCO/C3

STEREO A: SECCHI/COR2

Activity ID: 2026-03-26T23:12:00-CME-001 (version 1)

Note Keyword:

GAP: Data gap

Source Signature Keyword:

OFL: Moving/Opening field lines

Morphology Keyword:

Note: This CME is visible to the northeast in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This event is not seen in STEREO A COR2 imagery due to a data gap from 2026-03-26T16:08Z to 2026-03-27T03:23Z. The source is likely far-sided and related to an opening of field lines observed over the northeast limb in GOES SUVI 171/195/284 imagery starting around 2026-03-26T22:30Z.

Version 1 submitted on 2026-03-27T12:23Z by Mattie Anastopulos

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	26.0	320.0	S	10.0	2026-03-27T10:02Z	A plane-of-sky measurement was made using a longitude of -90 degrees due to the far-sided and therefore unknown source location.	Not modeled		Mattie Anastopulos on 2026-03-27T12:24Z

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