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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-01-18T15:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2025-01-18T15:12:00-CME-001 (version 1)
Source Location: N20W04
Active Region Number: 13959
Note Keyword:
DFL: Likely deflection of the event within the FOV
Faint: Faint event; may affect type assignment
GAP: Data gap
OVR: Event partially overlaps with another CME
Source Signature Keyword:
FIL: Filament eruption
Morphology Keyword:
O: Other
Note: CME seen to the NW in SOHO LASCO C2/C3, not STEREO COR2A due to a data gap. This CME front is quite faint and diffuse. The source may be a faint filament eruption from area of AR 3959 (N20W04) starting around 2025-01-18T13:54Z in SDO AIA 304, which is seen deflecting northwestward slightly in SDO AIA 304/GOES SUVI 304, though for only a few frames before fading. CME partially overlaps with CME: 2025-01-18T15:48Z.

Submitted on 2025-01-19T03:13Z by Tony Iampietro

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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) Submitted By
CME Analysis M2M_CATALOG LE true SWPC_CAT 24.0 33.0 623.0 C 10.0 2025-01-18T20:11Z Single spacecraft (SOHO LASCO C2/C3) 3D measurement using the source location and faint observed deflection to the NW to get a good fit of this narrow, diffuse front which fades early in C3 in addition to traveling into the C3 pylon. Not modeled Tony Iampietro on 2025-01-19T03:16Z



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