Distance modulus distribution (left) and stellar number density profile (right) for the three Rubin DP1 fields analyzed in this study shown in each row. Note: the sample distance modulus completeness limit is 18.5 and, thus, the steeply decreasing right edge of the distance modulus distributions is a real effect and not a selection effect. In the right column, data are shown as symbols with Poisson uncertainties and lines are axially symmetric elliptical halo models (Eq. (1)), with the corresponding n and q parameters listed in the legend (see text). Note: the data display much steeper profiles than the SDSS-motivated q = 0.62 and n = 2.75 halo profile assumed in TRILEGAL simulations.