Perturbed ephemeris below is based on elements from MPEC 2025-A40. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459160.50000 2459143.3851943 194.04879 94.51314 19.09661 e q a Epoch (TT) 0.4702809 3.3808612 6.38237 2020/11/07.00
m1 = 10.5 + 5 logΔ + 7.5 log r(t - 1000)