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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-20T07:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2026-03-20T07:48:00-CME-001 (version 2)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
Morphology Keyword:
Note: Very faint CME first seen to the W in SOHO LASCO C2 starting around 2026-03-20T07:48Z. It is also seen for a couple frames to the W in SOHO LASCO C3 but is not seen by STEREO A COR2 or GOES CCOR-1. There are a plethora of very small eruptions across the disk, none are definitive source candidates. 
Version 1 submitted on 2026-03-20T13:17Z by Elizabeth Juelfs
Version 2 submitted on 2026-03-20T19:29Z by Carina Alden
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 -9.0 336.0 S 16.0 2026-03-20T18:42Z Plane-of-sky measurement based on running difference imagery from SOHO LASCO C2/C3. Not modeled Elizabeth Juelfs on 2026-03-20T13:18Z



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