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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-12-17T18:15Z ( GOES: CCOR-1 )
All Detecting Spacecrafts:
GOES: CCOR-1
STEREO A: SECCHI/COR2
Activity ID: 2025-12-17T18:15:00-CME-001 (version 2)
Note Keyword:
Source Signature Keyword:
Morphology Keyword:
F: Flux Rope
Note: Wide CME seen to the northeast in GOES CCOR-1 and to the northwest in STEREO A COR2 for one frame. Not visible in SOHO LASCO C2/C3 in real-time due to a data gap. Likely associated with far-sided eruptive activity relative to the Earth-Sun line; it is not associated with any eruptive signatures on the Earth facing disk as seen in available SDO AIA and GOES SUVI EUV imagery. The eruptive signature was also not seen in STEREO A EUV imagery. 
Version 1 submitted on 2025-12-17T21:08Z by Chris Stubenrauch
Version 2 submitted on 2025-12-18T13:11Z by Mary Aronne
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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 -148.0 53.0 743.0 C 25.0 2025-12-17T22:35Z Leading edge measurement using one available frame of STEREO A COR2A imagery where the CME appears more narrow than in GOES CCOR-1; the CME width may be slightly wider in reality. Not modeled Chris Stubenrauch on 2025-12-17T21:09Z



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