Perturbed ephemeris below is based on elements from MPEC 2022-K19. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457320.50000 2457303.5758572 216.26539 143.15561 4.71959 e q a Epoch (TT) 0.5721562 2.4737762 5.78196 2015/10/25.00
m1 = -8.8 + 5 log d + 62.5 log r(t - 28)