Perturbed ephemeris below is based on elements from MPC 80899. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461120.50000 2461131.9501191 183.39743 120.65338 24.44752 e q a Epoch (TT) 0.5313186 1.7017444 3.63092 2026/03/21.00
m1 = 17.0 + 5 logΔ + 10.0 log r