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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-04-05T01:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-04-05T01:48:00-CME-001 (version 4)
Note Keyword:
Faint: Faint event; may affect type assignment
GAP: Data gap
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: CME first seen to the SE in GOES CCOR-1 starting at 2026-04-05T02:15Z. The start of it is it likely covered by real-time data gap in STEREO A COR2 but even after the data gap it is not seen in COR2, indicating far-sidedness. There is some extremely faint field line movement beyond SE limb starting around 2026-04-05T00:20Z best seen in GOES SUVI 284, which might be the indication of a very far sided source. 
Version 1 submitted on 2026-04-05T03:18Z by Elizabeth Juelfs
Version 2 submitted on 2026-04-05T12:37Z by Anna Chulaki
Version 3 submitted on 2026-04-05T12:39Z by Anna Chulaki
Version 4 submitted on 2026-04-05T12:40Z by Anna Chulaki
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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 -24.0 641.0 C 16.0 2026-04-05T07:08Z Final plane-of-sky measurement based on SOHO LASCO and GOES CCOR-1. The CME is not seen in STEREO A COR2 after the initial data gap. No clear sourse has been found for it in EUV imagery, so it is likely far sided. Not modeled Anna Chulaki on 2026-04-05T12:39Z



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