Perturbed ephemeris below is based on elements from MPC 65940. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2456280.50000 2456275.5827711 31.03754 184.06383 12.38092 e q a Epoch (TT) 0.3366668 2.3420898 3.53079 2012/12/19.00
m1 = 15.0 + 5 log d + 10.0 log r