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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-07T18:54Z ( SOHO: LASCO/C3 )
All Detecting Spacecrafts:
SOHO: LASCO/C3
Activity ID: 2026-03-07T18:54:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
GAP: Data gap
Source Signature Keyword:
Morphology Keyword:
Note: CME first seen to the SW in SOHO LASCO C3 starting sometime before 2026-03-07T18:54Z. This feature first becomes visible part way into the FOV of SOHO LASCO C3. It is not seen in SOHO LASCO C2. It is covered by a real-time data gap in STEREO A COR2 and is obscured by the pylon in GOES CCOR-1. There is not a good source candidate on the Earth-facing disk, so the source is most likely far-sided. This CME follows a very similar trajectory to earlier CME: 2026-03-07T13:38Z. 
Version 1 submitted on 2026-03-07T23:52Z 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 Plane-of-sky NONE -55.0 255.0 S 22.0 2026-03-08T06:27Z Speculative plane-of-sky measurement based on limited frames from SOHO LASCO C3. Not modeled Elizabeth Juelfs on 2026-03-07T23:54Z



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