Perturbed ephemeris below is based on elements from MPEC 2025-W75. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2462960.50000 2462945.0955229 329.95621 314.51828 8.94797 e q a Epoch (TT) 0.5323104 1.6200302 3.46390 2031/04/04.00
m1 = 6.5 + 5 logΔ + 25 log r(t - 30)