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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-20T10:23Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-07-20T10:23:00-CME-001 (version 1)
Source Location: S10W130
Note Keyword:
Source Signature Keyword:
PEA: Post eruption arcade
OFL: Moving/Opening field lines
BR: Brightening
Morphology Keyword:
Note: CME visible to the west in STEREO A COR2 and GOES CCOR-1 imagery. Not seen in SOHO LASCO C2/C3 in real-time due to a downlink data gap. The source is likely an eruption seen around S10W130 in STEREO A EUV 195/304 imagery starting at 2026-07-20T09:15Z with brightening, an ejecta of material, and post eruptive arcades. Former AR 14482, which rotated off of the Earth-facing disk on 2026-07-17, may be the potential source of this eruption based on EUV imagery. Moving field lines are also seen beyond the west limb in SDO AIA 193. 
Version 1 submitted on 2026-07-20T12:35Z by Mary Aronne
A Notification with ID 20260720-AL-003 was sent on 2026-07-20T13:41Z

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 130.0 -6.0 545.0 C 31.0 2026-07-20T16:29Z Measurement based on source location as well as the best fit between GOES CCOR-1 and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Psyche = 2026-07-25T04:00Z
Mars = 2026-07-26T00:00Z
2: Result 2 (2.0 AU)
Psyche = 2026-07-24T04:13Z
Mars = 2026-07-25T06:00Z
Solar Orbiter = 2026-07-22T04:00Z
2026-07-20T12:23Z Mary Aronne on 2026-07-20T12:36Z



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