Filament kinematics from preeruptive oscillations to eruption and coronal magnetic field from extrapolation and simulation. (a) AIA 193 Å images showing the stable filament before Jet 1 impacted. (b) AIA 193 Å images capturing the eruptive phases of the filament. (c) Time–distance diagram along slice S1 (marked in panel a), revealing the transverse oscillations of the filament before Jet 1 impacts. (d), (e) Time–distance diagrams along slits S2 and S3 (positions marked in panel (b)), showing the growing oscillations of the middle filament segment and the eruption kinematics of the filament. (f) Potential field extrapolation of the coronal magnetic field based on the photospheric magnetogram; purple flux tubes delineate the background field lines above the filament. (g), (h) Reconstructed flux rope from the MF simulation in two perspectives. Colored field lines represent the filament flux rope; pink contours outline magnetic dips where filament plasma is trapped. (i) STEREO EUV observation of the filament.