NOEMA CO(1-0) data for NGC 2623. Top left: moment-zero map. Overlaid contours are for the outflow in the velocity range [−500, −300] (blue) and [300, 500] km s⁻¹ (red), with contours at [0.7, 1.0, 1.5] mJy beam⁻¹. Top right: spectrum in a r = 4″ aperture centered on the continuum nucleus. The spectrum is decomposed into five Gaussians, four for the complex host line profile and one for outflow (green). The black line includes all five Gaussian components. Center left: center positions and their errors, from UV fitting a Gaussian model to individual channels. Center and bottom right: position-velocity diagrams. PA +80° traces the velocity gradient of the line core. The orthogonal PA −10° is also close to the orientation of the roughly N–S bipolar outflow seen in the top left and center left panels. Bottom left: [−500, −300] km s⁻¹ channel map showing the SE “fossil” outflow that is also indicated in the blue contours of the top left panel, in addition to the blue component of the main bipolar outflow.