Perturbed ephemeris below is based on elements from MPC 34421. Epoch = 2456720.50000 TT T = 2456731.06333 TT Peri. = 180.72769 a = 6.1380353 AU Node = 303.42502 J2000.0 e = 0.6487068 Incl. = 19.05609 q = 2.1562502 AU
m1 = 1.7 + 5 log d + 25 log r(t + 33)