Perturbed ephemeris below is based on elements from MPC 66205. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2457320.50000 2457320.5639953 162.90074 120.87318 4.73719 e q a Epoch (TT) 0.5477290 1.5582291 3.44534 2015/10/25.00
m1 = 5.3 + 5 log d + 21.0 log r