Inference of the cosmic rest-frame from supernovae Ia

We determine the proper motion of Solar system from Pantheon sample supernovae (SNe) type Ia. The posterior distribution velocity, its direction and relevant cosmological parameters are obtained based on observed distance moduli, heliocentric redshifts, positions SNe by means a Markov Chain Monte Carlo method. account for unknown peculiar including their expected covariance linear theory. find that moves with $v_o = 249 \pm 51$ km/s towards $RA 166 16$ deg, $Dec 10 19$ deg (J2000) (all at 68\% C.L.). agrees dipole in cosmic microwave background (CMB) ($RA 166$ -7$ deg). inferred velocity is $2.4 \sigma$ smaller than value purely kinematic interpretation CMB ($370$ km/s). Assuming flat $\Lambda$ cold dark matter model, we no degeneracy other parameters. dimensionless density $\Omega_M 0.305 0.022$, excellent agreement measurements. also SN calibration nuisance parameter. conclude larger will allow an independent robust test nature dipole.