Perturbed ephemeris below is based on elements from MPEC 2025-DP4. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2458560.50000 2458550.5652597 47.79915 312.39485 9.36831 e q a Epoch (TT) 0.0430206 5.7670370 6.02629 2019/03/18.00
m1 = 4.0 + 5 logΔ + 7.5 log r