Planck18

astropy.cosmology.realizations.Planck18 = FlatLambdaCDM(name='Planck18', H0=<Quantity 67.66 km / (Mpc s)>, Om0=0.30966, Tcmb0=<Quantity 2.7255 K>, Neff=3.046, m_nu=<Quantity [0.  , 0.  , 0.06] eV>, Ob0=0.04897)

Planck18 instance of FlatLambdaCDM cosmology (from Planck Collaboration 2018, 2020, A&A, 641, A6 (Paper VI), Table 2 (TT, TE, EE + lowE + lensing + BAO))