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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-17T18:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-07-17T18:00:00-CME-001 (version 1)
Note Keyword:
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. 
Version 1 submitted on 2026-07-17T21:34Z 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 127.0 -16.0 833.0 C 22.0 2026-07-17T22:12Z 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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