Perturbed ephemeris below is based on elements from MPC 62270. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2456920.50000 2456903.2085134 202.85925 144.29338 11.86324 e q a Epoch (TT) 0.3767897 2.2894896 3.67370 2014/09/20.00
m1 = 5.7 + 5 log d + 20.0 log r