Perturbed ephemeris below is based on elements from MPEC 2023-B57. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2455148.50000 2455150.9428630 191.96544 138.49741 7.41085 e q a Epoch (TT) 0.6802595 4.9456721 15.46777 2009/11/13.00
m1 = -54 + 5 logΔ + 100 log r(t - 400)