Perturbed ephemeris below is based on elements from MPC 86643. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461200.50000 2461202.8897379 345.57598 0.77795 9.44760 e q a Epoch (TT) 0.5000580 1.7464989 3.49340 2026/06/09.00
m1 = 17.0 + 5 logΔ + 10.0 log r