Perturbed ephemeris below is based on elements from NK 573. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457800.50000 2457810.7823152 157.02042 237.95330 16.87332 e q a Epoch (TT) 0.5838590 1.6463191 3.95616 2017/02/16.00
m1 = 18.0 + 5 logΔ + 20.0 log r