Perturbed ephemeris below is based on elements from MPEC 2023-UR6. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2458280.50000 2458288.0543651 167.01731 330.43144 4.97684 e q a Epoch (TT) 0.5934244 2.6271597 6.46168 2018/06/11.00
m1 = 12.5 + 5 log d + 10.0 log r