WMAP9

astropy.cosmology.realizations.WMAP9 = FlatLambdaCDM(name='WMAP9', H0=<Quantity 69.32 km / (Mpc s)>, Om0=0.2865, Tcmb0=<Quantity 2.725 K>, Neff=3.04, m_nu=<Quantity [0., 0., 0.] eV>, Ob0=0.04628)

WMAP9 instance of FlatLambdaCDM cosmology (from Hinshaw et al. 2013, ApJS, 208, 19, doi: 10.1088/0067-0049/208/2/19. Table 4 (WMAP9 + eCMB + BAO + H0, last column))