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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-02T18:09Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-06-02T18:09:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
FF: Event fails/disappears before exiting COR2
OFL: Outflowing material at the back of the CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: Narrow, faint CME first seen to the NE in STEREO A COR2 starting around 2026-06-02T18:09Z. This feature is only seen in STEREO A COR2 because it is mostly likely obscured by the occulting disk in SOHO LASCO C2/C3 and GOES CCOR-1. The source is most likely some additional outflow following CME: 2026-06-02T17:23Z as there is no independent source signature apart from continuous field line fluctuation following CME: 2026-06-02T17:23Z. This CME fades before reached the end of the FOV of STEREO A COR2. 
Version 1 submitted on 2026-06-02T22:47Z by Elizabeth Juelfs
No Notification has been sent for this activity yet.

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 5.0 23.0 427.0 S 10.0 2026-06-03T02:10Z Speculative measurement based on limited imagery from STEREO A COR2 and approximate source location. 1: Result 1 (2.0 AU)
Earth = 2026-06-06T06:00Z
Elizabeth Juelfs on 2026-06-02T22:48Z



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