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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-04-13T04:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2026-04-13T04:00:00-CME-001 (version 2)
Source Location: S17W63
Note Keyword:
Source Signature Keyword:
DIM: Dimming
Morphology Keyword:
Note: This CME is visible to the west/southwest in SOHO LASCO C2/C3. This event is not seen in GOES CCOR-1 due to an eclipse of the coronagraph. This event is also not observable in STEREO A COR2 imagery as the CME is likely a halo from the perspective of STEREO A and is therefore hidden by the coronagraph. The source is an eruption centered near S17W63 starting around 2026-04-13T03:40Z as seen in SDO AIA 131/171/193/304, GOES SUVI 131/171/195/284/304, and STEREO A EUVI 195/304 imagery. Dimming is observed from the eruption site in SDO AIA 193 and GOES SUVI 195 imagery. 
Version 1 submitted on 2026-04-13T11:56Z by Mattie Anastopulos
Version 2 submitted on 2026-04-13T16:11Z by Mattie Anastopulos
A Notification with ID 20260413-AL-002 was sent on 2026-04-13T12:34Z

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 SWPC_CAT 63.0 -20.0 1065.0 O 10.0 2026-04-13T07:16Z Measurement based on the on-disk source location. 1: Result 1 (2.0 AU)
BepiColombo = 2026-04-14T06:00Z
STEREO A = 2026-04-15T07:00Z
Mattie Anastopulos on 2026-04-13T11:58Z



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