Epoch 2011 Dec. 25.0 TT = JDT 2455920.5 T 2011 Dec. 16.08832 TT MPC q 2.3448746 (2000.0) P Q z +0.0009385 Peri. 141.16381 -0.01645630 +0.93259860 +/-0.0000015 Node 124.89053 -0.99145378 +0.03145233 e 0.9977994 Incl. 26.07522 -0.12941639 -0.35954222 From 1426 observations 2011 Jan. 15-Oct. 24, mean residual 0".4.
m1 = 5.5 + 5 log d + 15.0 log r