Perturbed ephemeris below is based on elements from MPC 62882. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2455840.50000 2455851.5599727 333.99060 40.19675 2.60382 e q a Epoch (TT) 0.3106501 2.6119032 3.78894 2011/10/06.00
m1 = 12.5 + 5 logΔ + 15.0 log r