Fig. 4.

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Full 3D reconstructions of the outer CME front and filament structures. Top row: ATLAS-3D reconstructions of the outer CME front and the filament. Left panel: LOS projections of a 3D plane (cyan mesh) constructed through the 3D filament points (red markers) in the 304 Å Solar Orbiter/EUI base-difference image. Middle panel: 3D plane (cyan mesh) and 3D filament coordinates (red markers). Right panel: 3D coordinates of all considered filament and CME front structures determined from both 3D reconstructions based on epipolar geometry and the ATLAS-3D method. At 11:45 UT, a filament deflection at 11.9° is observed. The green line indicates the filament pre-deflection direction, determined as the linear fit through its highest points, while the blue line represents its post-deflection direction. Middle row: Evolution of the filament as seen in Solar Orbiter/EUI 304 Å base-difference images over 30 minutes, from 11:25 to 11:55 UT. Blue dots outline the filament, red dots the CME front. The green line depicts the primary direction of the filament propagation, with a deflection (indicated by the blue line) observed at 11:45 UT. Bottom row: Heights of the filament loops and outer CME front edges from 11:15 to 11:45 UT. The bottom x-axis represents a filament point, while the top x-axis (for 11:25 and 11:35 UT) shows a point of the CME’s front edge.

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