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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-01-04T12:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2026-01-04T12:00:00-CME-001 (version 2)
Note Keyword:
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Note: Narrow CME seen to the east in SOHO LASCO C2, GOES CCOR-1, and later in STEREO A COR2A which could be associated with a sympathetic eruption near the eastern limb caused by the prominence behind the eastern limb beginning near 2026-01-04T12:00Z seen best in SDO AIA 171. 
Version 1 submitted on 2026-01-04T16:09Z by Chris Stubenrauch
Version 2 submitted on 2026-01-07T12:54Z 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 -77.0 6.0 559.0 C 10.0 2026-01-04T18:56Z Triangulation of the CME leading edge to determine longitude. Not modeled Chris Stubenrauch on 2026-01-04T16:10Z



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