Perturbed ephemeris below is based on elements from MPEC 2023-CD7. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2458320.50000 2458302.0158055 219.22173 203.27702 13.88243 e q a Epoch (TT) 0.4378736 2.7804619 4.94633 2018/07/21.00
m1 = 8.0 + 5 logΔ + 15.0 log r(t - 30)