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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-20T02:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-07-20T02:24:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: Wide CME visible to the SW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is an eruption seen beyond the SW limb from the point of view of STEREO A EUV 195/304, best seen as opening field lines starting around 2206-07-20T01:15Z. 
Version 1 submitted on 2026-07-20T11:28Z by Mary Aronne
A Notification with ID 20260720-AL-001 was sent on 2026-07-20T11:52Z

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 155.0 -13.0 587.0 C 39.0 2026-07-20T07:51Z Measurement based on the best fit between SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery in SWPC_CAT. 1: Result 1 (2.0 AU)
Mars = 2026-07-25T06:00Z
Psyche = 2026-07-24T18:00Z
Solar Orbiter = 2026-07-22T04:00Z
2: Result 2 (2.0 AU)
Psyche = 2026-07-24T04:13Z
Mars = 2026-07-25T06:00Z
Solar Orbiter = 2026-07-22T04:00Z
2026-07-20T11:24Z Mary Aronne on 2026-07-20T11:30Z



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