Perturbed ephemeris below is based on elements from MPC 69909. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2456360.50000 2456349.1278288 358.64987 3.94289 9.89269 e q a Epoch (TT) 0.7751131 0.6947055 3.08913 2013/03/09.00
m1 = 18.5 + 5 log d + 5.0 log r