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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-01-01T03:53Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-01-01T03:53:00-CME-001 (version 3)
Note Keyword:
GAP: Data gap
Source Signature Keyword:
FLR: Flare
Morphology Keyword:
Note: Narrow CME first seen to the E in STEREO A COR2 starting at 2026-01-01T03:53Z. This CME is only seen in STEREO A COR2 for four frames. The later propagation of this CME is missed due to a data gap in STEREO A COR2 imagery starting after 2026-01-01T03:48Z There are a couple of potential sources for this CME. The first is an eruption and some associated dimming from AR 14324 best seen in SDO AIA 193 starting around 2026-01-01T01:39Z. The second is associated with a C9.6 class flare from AR 14325 (S10E03) that peaked at 2026-01-01T02:25Z. The flare and associated eruption are best seen in SDO AIA 131. Based on the latitude of the CME, the second source candidate is more likely. 
Version 1 submitted on 2026-01-01T17:15Z by Elizabeth Juelfs
Version 2 submitted on 2026-01-01T17:18Z by Elizabeth Juelfs
Version 3 submitted on 2026-01-06T21:04Z 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 Plane-of-sky NONE -3.0 453.0 S 10.0 2026-01-01T11:25Z Plane-of-sky measurement chosen because this CME is only seen in STEREO A COR2. Not modeled Elizabeth Juelfs on 2026-01-01T17:16Z



All directly linked activities:
2026-01-01T02:15:00-FLR-001
FLR Type: C9.6


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