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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-09-03T22:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-09-03T22:24:00-CME-001 (version 1)
Note Keyword:
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: CME visible to the E in SOHO LASCO C2, C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is likely moving/opening field lines visible beyond the E limb in GOES SUVI 284. This CME partially overlaps with the CME first seen to the NE in SOHO LASCO C2 at 2026-09-03T19:12Z. 
Version 1 submitted on 2026-09-04T01:40Z by Carina Alden
A Notification with ID 20260904-AL-002 was sent on 2026-09-04T03:16Z

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 -80.0 8.0 650.0 C 28.0 2026-09-04T03:34Z Parameters based on the best fit using SOHO LASCO C2, C3, GOES CCOR-1, and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Europa Clipper = 2026-09-07T10:00Z
OSIRIS-APEX = 2026-09-08T06:00Z
2026-09-04T00:48Z Carina Alden on 2026-09-04T01:42Z



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