NB: only a REGALADE subset is considered (D < 1000 Mpc, 25M galaxies)
To cross-match your own coordinate list against the full catalog, use ellipse_xmatch, a dedicated Python tool for elliptical cross-matching.
This crossmatch applies the directional light radius (DLR) method to associate your objects to REGALADE galaxies, using the REGALADE ellipses. See Gupta et al. 2016 for details.
Max filesize: 2M
Required columns: "ra", "dec"