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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-23T07:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2026-05-23T07:36:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
FF: Event fails/disappears before exiting COR2
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
L: Loop
Note: Faint CME observed to the SE only in SOHO LASCO C2, better in running difference imagery, fading after a few early frames. The source is a rapid snap of field lines to the SE starting at 2026-05-23T07:19Z in GOES SUVI 284, from a likely far-sided source yet to rotate on. 
Version 1 submitted on 2026-05-23T19:40Z by Tony Iampietro
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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 -24.0 580.0 C 41.0 2026-05-23T13:59Z SOHO LASCO C2 only plane-of-sky. Not modeled 2026-05-23T19:08Z Tony Iampietro on 2026-05-23T19:40Z



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