Perturbed ephemeris below is based on elements from MPC 73465. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457600.50000 2457620.1798774 191.59750 249.83328 15.96528 e q a Epoch (TT) 0.5945331 1.3579455 3.34909 2016/07/31.00
m1 = 7.5 + 5 logΔ + 17.0 log r