Epoch 2008 Oct. 21.0 TT = JDT 2454760.5 T 2008 Oct. 25.09199 TT MPC q 1.1451967 (2000.0) P Q n 0.16906991 Peri. 181.42437 +0.90377283 -0.36576879 a 3.2391061 Node 204.13485 +0.39787317 +0.90938662 e 0.6464467 Incl. 32.93047 +0.15777079 -0.19806355 P 5.83 From 160 observations 1892-2008, mean residual 1".6.
m1 = 19.2 + 5 log d + 10.0 log r