Epoch 2010 May 4.0 TT = JDT 2455320.5 T 2010 Apr. 19.31667 TT Rudenko q 1.7120429 (2000.0) P Q n 0.08558095 Peri. 306.70711 -0.70739307 +0.69973656 a 5.0997786 Node 277.94101 -0.61210364 -0.67707838 e 0.6642907 Incl. 5.78439 -0.35344614 -0.22788948 P 11.5 From 672 observations 2010 Jan. 14-2021 Jan. 19, mean residual 0".5.
m1 = 11.5 + 5 log d + 16.0 log r(t + 20)