Left panel: AIA 171 Å image of jet at 04:00:47 UT. The white overplotted line represents an artificial slit which was used to create a time-distance plot (the variation in the intensities along the artificial slit are shown as a function of time). Right panel: time-distance plot for jet. The white dashed lines along the jet-spire structure are used for the plane-of-sky velocity calculation. The velocity was found to be ∼136 km s⁻¹.