Red and blue curves: hydrostatic equilibrium bulk porosities for composition A (32% ice) and B (65% ice). The solid curves assume v_coll = 0 and the dashed assume v_coll = v_esc/ 2. The green lines are the fully compressed densities. The black curve is obtained after thermal processing of bodies with 65% ice formed with v_coll = v_esc/ 2. Measured densities for dynamically cold classical disk objects (black, gray) are taken from Petit et al. (2008), Vilenius et al. (2012, 2014), and Carry (2012) based on Grundy et al. (2009, 2013). Densities for dynamically hot classical disk objects, SD objects, and Centaurs (red) are taken from Spencer et al. (2006), Benecchi et al. (2010), Mommert et al. (2012), Santos-Sanz et al. (2012), and Vilenius et al. (2014).