Perturbed ephemeris below is based on elements from MPC 67973. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457360.50000 2457344.5729823 308.92123 112.39409 14.65277 e q a Epoch (TT) 0.5630602 1.4852772 3.39927 2015/12/04.00
m1 = 13.2 + 5 logΔ + 10.0 log r