Perturbed ephemeris below is based on elements from MPC 89011. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459520.50000 2459520.5575950 22.13393 36.33246 3.87141 e q a Epoch (TT) 0.6497024 1.2106198 3.45598 2021/11/02.00
m1 = 9.5 + 5 logΔ + 14.0 log r(t - 40)