Perturbed ephemeris below is based on elements from MPEC 2021-F20. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461400.50000 2461381.9156481 97.85069 4.94084 3.42870 e q a Epoch (TT) 0.3413266 2.3241523 3.52853 2026/12/26.00
m1 = 8.5 + 5 log d + 20.0 log r(t - 40)