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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-01-28T21:48Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

GOES: CCOR-1

Activity ID: 2026-01-28T21:48:00-CME-001 (version 3)
Source Location: N20E30
Active Region Number: 14359

Note Keyword:

Faint: Faint event; may affect type assignment

GAP: Data gap

PRM: Prominence material (filamentary structures)

Source Signature Keyword:

FIL: Filament eruption

Morphology Keyword:

Note: Extremely faint front first seen to the NE part way into the FOV of SOHO LASCO C2 starting at 2026-01-28T21:48Z. This CME is only seen in SOHO LASCO C2 for three frames of running difference imagery. It is also seen to the NE in GOES CCOR-1. The CME is covered by a real-time data gap in STEREO A COR2. It is too faint to discern in white light. There is a small filament eruption from AR 14359 (N20E30) best seen in SDO AIA 171 starting around 2026-01-28T20:30Z that could be related.

Version 1 submitted on 2026-01-29T00:07Z by Elizabeth Juelfs
Version 2 submitted on 2026-01-29T00:09Z by Elizabeth Juelfs
Version 3 submitted on 2026-02-02T16:29Z 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	-30.0	23.0	357.0	S	17.0	2026-01-29T05:28Z	Measurement based on speculative source around AR 14359 (N20E30).	1: Result 1 (2.0 AU)		Elizabeth Juelfs on 2026-01-29T00:09Z

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