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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-10-31T14:05Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2025-10-31T14:05:00-CME-001 (version 1)
Source Location: S15W140
Note Keyword:
3P: 3-part structure CME
DPL: CME exhibits dimpled front
FF: Event fails/disappears before exiting COR2
OFL: Outflowing material at the back of the CME
Source Signature Keyword:
FIL: Filament eruption
OFL: Moving/Opening field lines
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: CME seen to the NW in SOHO LASCO C2/C3, GOES CCOR-1 and STEREO A COR2. The clear source is a far-sided filament seen as a large ejecta at 2025-10-31T13:14Z in STEREO A EUV 304 on/behind the SW limb but directed northward seen at in STA EUV 304, also seen as restructuring of magnetic field behind the limb in STEREO A EUV 195 at the time. 
Version 1 submitted on 2025-10-31T19:37Z by Anna Chulaki
A Notification with ID 20251031-AL-008 was sent on 2025-10-31T20:44Z

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 141.0 33.0 546.0 C 33.0 2025-10-31T20:26Z Approximate analysis based on the location of the CME source (filament on/behind the SW limb in STEREO A EUV 304 and on the fit with all three coronagraphs (SOHO LASCO, STEREO A COR2 and GOES CCOR-1). 1: Result 1 (2.0 AU)
Juice = 2025-11-03T10:00Z
2: Result 2 (5.5 AU)
Juice = 2025-11-03T10:00Z
Anna Chulaki on 2025-10-31T19:53Z



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