Perturbed ephemeris below is based on elements from MPEC 2023-B57. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459200.50000 2459195.7691111 326.41382 210.64158 70.21047 e q a Epoch (TT) 0.9975562 9.3453403 3824.05204 2020/12/17.00
m1 = -11.0 + 5 log d + 25 log r(t - 200)