Corrected orbital data for the Roadster: 0.99 x 1.71 AU x 1.1 degC3 = 12.0, passes orbit of Mars Jul 2018, aphelion November— Jonathan McDowell (@planet4589) February 8, 2018
Corrected orbital data for the Roadster: 0.99 x 1.71 AU x 1.1 degC3 = 12.0, passes orbit of Mars Jul 2018, aphelion November