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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-23T19:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2026-06-23T19:00:00-CME-001 (version 1)
Note Keyword:
Source Signature Keyword:
Morphology Keyword:
Note: Loop CME seen to the east-northeast in SOHO LASCO C2, C3 and STEREO A COR2A. The CME appears to be associated with eruptive activity over the eastern limb, as evidenced by opening field lines bending from eastward to the northeast seen in SDO AIA 171 imagery starting around 2026-06-23T18:00Z. The full extent of the eruption is better visualized in GOES SUVI 284 imagery, where a faint loop seen stretching from northeast to southeast begins erupting outward off the eastern limb. 
Version 1 submitted on 2026-06-23T21:51Z by Chris Stubenrauch
A Notification with ID 20260623-AL-001 was sent on 2026-06-23T22:24Z

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 -118.0 19.0 600.0 C 33.0 2026-06-24T01:13Z Fairly speculative leading edge measurement using only Sun-Earth line coronagraphs which include SOHO and GOES with no STEREO Ahead imagery, therefore, there is high uncertainty in source longitude by up to 15 degrees. 1: Result 1 (2.0 AU)
Solar Orbiter = 2026-06-26T06:00Z
2026-06-23T21:53Z Chris Stubenrauch on 2026-06-23T21:53Z



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