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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-02-28T14:23Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-02-28T14:23:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
Morphology Keyword:
L: Loop
Note: Faint CME first seen to the Northwest by STEREO A COR2 beginning at 2026-02-28T14:23Z, as well as to the North by SOHO LASCO C2/C3 and GOES CCOR-1 in later frames. There is no clear source seen for this event as it is likely far sided. 
Version 1 submitted on 2026-02-28T22:06Z by Melissa Kane
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 180.0 61.0 295.0 S 28.0 2026-03-01T01:46Z Measurement based on best fit in SOHO LASCO C2/C3, STEREO A COR2 and GOES CCOR-1. Not modeled Melissa Kane on 2026-02-28T22:07Z



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