Perturbed ephemeris below is based on elements from MPEC 2023-B57. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2460280.50000 2460263.7762982 280.69949 347.23323 84.29879 e q a Epoch (TT) 0.9987043 10.3129404 7959.08591 2023/12/02.00
m1 = -3.5 + 5 log d + 15.0 log r