parent parent_name a_p a_p_err e_p e_p_err sin_i_p sin_i_p_err g g_err h h_err mass mass_err diameter diameter_err albedo albedo_err 81 Terpsichore 2.854 nan 0.181 nan 0.143 nan 0.150 nan 8.720 nan 1.016e+18 4.337e+17 119.96 0.554 0.047 0.0014