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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-18T20:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-03-18T20:24:00-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 the W in SOHO LASCO C2 starting around 2026-03-18T20:24Z. The CME is also seen to the W in SOHO LASCO C3 and GOES CCOR-1 but is covered by a real-time data gap in STEREO A COR2. There is no good source candidate for this CME on the Earth-facing disk, so the source is possibly far-sided. There is an eruption from slightly SW of AR 14392 beginning around 2026-03-18T17:08Z, but it is unlikely that this eruption is related to this CME. 
Version 1 submitted on 2026-03-19T00:25Z 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 -4.0 279.0 S 15.0 2026-03-19T09:22Z Plane-of-sky measurement chosen due to lack of definitive source candidate. Not modeled Elizabeth Juelfs on 2026-03-19T00:26Z



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