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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-02-25T16:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-02-25T16:24:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
Morphology Keyword:
Note: Very faint CME with a fuzzy unclear front first seen to the SE in SOHO LASCO C2 starting at 2026-02-25T16:24Z. It is also seen to the SE in GOES CCOR-1 and SOHO LASCO C3 and to the SSE in STEREO A COR2. The source of this CME is most likely an M2.3 flare on/behind the SE limb that peaked at 2026-02-25T15:59Z. Coronal signatures include opening of field lines behind the limb seen in SDO AIA 193/171 and GOES SUVI 195/284. 
Version 1 submitted on 2026-02-25T23:50Z by Elizabeth Juelfs
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 -85.0 -40.0 325.0 S 26.0 2026-02-26T02:57Z Measurement based on best fit among SOHO LASCO C2, GOES CCOR-1, and STEREO A COR2. The leading edge is too fuzzy to consistently track once it reaches the FOV of SOHO LASCO C3. 1: Result 1 (2.0 AU)
Elizabeth Juelfs on 2026-02-25T23:52Z



All directly linked activities:
2026-02-25T15:35:00-FLR-001
FLR Type: M2.3


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