Perturbed ephemeris below is based on elements from MPC 66922. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457840.50000 2457858.9435315 1.85669 358.85342 6.05720 e q a Epoch (TT) 0.4245645 2.1847811 3.79674 2017/03/28.00
m1 = 13.0 + 5 logΔ + 15 log r