Epoch 2003 Jan. 1.0 TT = JDT 2452640.5 T 2002 Dec. 22.44509 TT MPC q 3.1101033 (2000.0) P Q n 0.10350161 Peri. 163.68941 -0.24274857 +0.95483914 a 4.4926714 Node 92.01621 -0.90809471 -0.16153832 e 0.3077385 Incl. 9.87156 -0.34122886 -0.24937441 P 9.52 From 365 observations 1993 May 17-2012 May 2, mean residual 1".0. Nongravitational parameters Y1 = +0.06, Y2 = +0.0185.
m1 = 10.0 + 5 logΔ + 10.0 log r(t - 250)