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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-04-23T14:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-04-23T14:24:00-CME-001 (version 1)
Source Location: N17W66
Active Region Number: 14419
Note Keyword:
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
EUVW: EUV Wave
Morphology Keyword:
Note: This CME is visible to the northwest in SOHO LASCO C2/C3 and GOES CCOR-1 imagery, and to the north in STEREO A COR2 imagery. The source is an eruption and M1.7 flare from Active Region 14419 (N17W66) starting around 2026-04-23T14:00Z as seen in SDO AIA 131/171/193/304, GOES SUVI 131/171/195/284/304, and STEREO A EUVI 195/304 imagery. An EUV wave is seen moving north and east of the eruption site, with an opening of field lines observed over the northeast limb in SDO AIA 171 and GOES SUVI 284 imagery.
Version 1 submitted on 2026-04-23T18:55Z by Mattie Anastopulos
Version 2 submitted on 2026-04-28T19:55Z by Mary Aronne
	
A Notification with ID 20260424-AL-010 was sent on 2026-04-24T18:43Z

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 43.0 43.0 405.0 S 26.0 2026-04-23T22:42Z Measurement based on the best fit between SOHO LASCO C2 and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
STEREO A = 2026-04-27T03:00Z (PE: 23.1 h)
2: Result 2 (2.0 AU)
Earth = 2026-04-27T02:00Z
Juice = 2026-04-27T01:46Z
OSIRIS-APEX = 2026-04-27T11:26Z
Parker Solar Probe = 2026-04-25T16:29Z
STEREO A = 2026-04-25T22:17Z (PE: -5.6 h)
Europa Clipper = 2026-04-29T04:00Z
BepiColombo = 2026-04-25T02:00Z
Mattie Anastopulos on 2026-04-23T18:57Z



All directly linked activities:
2026-04-23T13:42:00-FLR-001
FLR Type: M1.7
2026-04-26T03:51:00-IPS-001
Location: STEREO A


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