Epoch 2015 Apr. 8.0 TT = JDT 2457120.5 T 2015 Mar. 28.62178 TT MPCW q 1.9263545 (2000.0) P Q n 0.00531070 Peri. 21.75770 +0.60708652 -0.71027429 a 32.5362927 Node 325.80439 -0.78993168 -0.58814095 e 0.9407937 Incl. 140.65563 -0.08633592 +0.38678243 P 186 From 187 observations 2015 Apr. 20-July 27, mean residual 0".6.
m1 = 13.5 + 5 log d + 10.0 log r