Perturbed ephemeris below is based on elements from MPEC 2023-XP6. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459720.50000 2459722.0072222 157.09407 173.95128 14.50449 e q a Epoch (TT) 0.4960118 2.7883760 5.53262 2022/05/21.00
m1 = 13.0 + 5 logΔ + 7.5 log r(t - 100)