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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-18T02:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2026-03-18T02:36:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
FF: Event fails/disappears before exiting COR2
Source Signature Keyword:
Morphology Keyword:
Note: Faint CME first seen to the SE by SOHO LASCO C2 beginning at 2026-03-18T02:36Z. This CME fades before exiting the field of view in SOHO LASCO C2 and is therefore not seen in SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. There is no clear source seen on the disk for this event as it is likely far sided. 
Version 1 submitted on 2026-03-18T15:21Z 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 Plane-of-sky NONE -33.0 474.0 S 24.0 2026-03-18T09:54Z Plane-of-sky measurement using a longitude of E90 due to unclear source likely originating from beyond the East limb and lack of STEREO A COR2 imagery to triangulate. Not modeled Melissa Kane on 2026-03-18T15:22Z



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