Perturbed ephemeris below is based on elements from MPC 63602. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457160.50000 2457171.3949356 353.45933 75.37708 30.36811 e q a Epoch (TT) 0.6254350 1.3489477 3.60137 2015/05/18.00
m1 = 10.0 + 5 logΔ + 10.0 log r