Perturbed ephemeris below is based on elements from MPEC 2011-E57. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2456640.50000 2456621.0665234 149.76364 138.26370 7.73137 e q a Epoch (TT) 0.2074704 3.1594316 3.98652 2013/12/14.00
m1 = 5.0 + 5 log d + 20.0 log r