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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-17T18:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-07-17T18:12:00-CME-001 (version 1)
Note Keyword:
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: This CME is visible to the southwest in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source may be related to an eruption visible from beyond the southwest limb in SDO AIA 131/171/304, GOES SUVI 131/171/284/304, and STEREO A EUVI 195/304 imagery starting around 2026-07-17T17:35Z, possibly originating from former Active Region 14485 (S10W149). An opening of field lines is visible over the southwest limb in GOES SUVI 195 imagery at this time as well. This event overlaps with CME: 2026-07-17T18:00Z. 
Version 1 submitted on 2026-07-17T21:36Z by Mattie Anastopulos
A Notification with ID 20260717-AL-002 was sent on 2026-07-17T22:29Z

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 119.0 -26.0 464.0 S 32.0 2026-07-18T01:35Z Measurement based on the best fit between SOHO LASCO C2, GOES CCOR-1, and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Mars = 2026-07-22T15:31Z
Psyche = 2026-07-22T10:46Z
2: Result 2 (5.5 AU)
Psyche = 2026-07-22T09:53Z
Mars = 2026-07-22T13:00Z
Mattie Anastopulos on 2026-07-17T21:38Z



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