Perturbed ephemeris below is based on unperturbed elements from MPC 42666. Epoch = 2456040.50000 TT T = 2456027.51247 TT Peri. = 200.48797 a = 4.0736720 AU Node = 160.63481 J2000.0 e = 0.6626044 Incl. = 13.48976 q = 1.3744389 AU
m1 = 7.5 + 5 log d + 30 log r(t - 80)