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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-28T04:36Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

SOHO: LASCO/C3

STEREO A: SECCHI/COR2

GOES: CCOR-1

Activity ID: 2026-07-28T04:36:00-CME-001 (version 1)
Source Location: N14E75
Active Region Number: 14498

Note Keyword:

Source Signature Keyword:

OFL: Moving/Opening field lines

DIM: Dimming

Morphology Keyword:

Note: CME seen to the NE in SOHO LASCO C2/C3 and GOES CCOR-1. The CME is also possibly seen faintly to the NE in STEREO A COR2 imagery, but partially obscured by the NE streamer. The potential source is an eruption starting at 2026-07-28T02:17Z best seen as dimming and moving field lines in SDO AIA 193 imagery. The eruption can also be seen in GOES SUVI 304 imagery.

Version 1 submitted on 2026-07-28T12:10Z 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	-74.0	14.0	452.0	S	17.0	2026-07-28T11:23Z	Measurement based on the source location using SOHO LASCO C2/C3 and GOES CCOR-1 running difference imagery. The CME's leading edge was not clearly measurable in STEREO A COR2 imagery.	1: Result 1 (2.0 AU)	2026-07-28T11:46Z	Mary Aronne on 2026-07-28T12:13Z

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