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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-08-17T10:09Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2025-08-17T10:09:00-CME-001 (version 1)
Source Location: S17W15
Active Region Number: 14179
Note Keyword:
Source Signature Keyword:
DIM: Dimming
Morphology Keyword:
Note: This CME is visible to the southeast in SOHO LASCO C2/C3, STEREO A COR2, and GOES CCOR-1 imagery. The source is likely an eruption from Active Region 14179 (S17W15) starting around 2025-08-17T09:15Z as seen in SDO AIA 131/171/193/304, GOES SUVI 284/304, and STEREO A EUVI 195 and 304 imagery. Dimming is seen in SDO AIA 193 from the eruption site, and a clear deflection to the southeast can be observed. There is a coronal hole northeast of the eruption site which likely accounts for this deflection. Additionally, brightening can be observed from Active Region 14180 around 2025-08-17T09:15Z but it is unclear if this is related to the observed CME or not.
Version 1 submitted on 2025-08-17T16:20Z by Mattie Anastopulos
	
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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 -11.0 -20.0 468.0 S 28.0 2025-08-17T16:36Z Measurement based on the approximate source location and best fit between SOHO LASCO C2/C3, GOES CCOR-1 and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Earth = 2025-08-20T16:00Z
OSIRIS-APEX = 2025-08-20T14:00Z
Parker Solar Probe = 2025-08-19T10:00Z
2025-08-17T16:21Z Mattie Anastopulos on 2025-08-17T16:21Z



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