WMAP1

astropy.cosmology.realizations.WMAP1 = FlatLambdaCDM(name='WMAP1', H0=<Quantity 72. km / (Mpc s)>, Om0=0.257, Tcmb0=<Quantity 2.725 K>, Neff=3.04, m_nu=<Quantity [0., 0., 0.] eV>, Ob0=0.0436)

WMAP1 instance of FlatLambdaCDM cosmology (from Spergel et al. 2003, ApJS, 148, 175, doi: 10.1086/377226. Table 7 (WMAP + CBI + ACBAR + 2dFGRS + Lya).nPending WMAP team approval and subject to change.)