Perturbed ephemeris below is based on elements from MPEC 2021-O56. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461760.50000 2461760.8855600 14.58458 8.14189 10.91721 e q a Epoch (TT) 0.4040276 2.2845047 3.83324 2027/12/21.00
m1 = 10.0 + 5 logΔ + 15.0 log r