Epoch 2019 July 16.0 TT = JDT 2458680.5 T 2019 July 19.72633 TT Williams q 1.7269107 (2000.0) P Q z +0.0013957 Peri. 98.70416 -0.02562284 -0.90940660 +/-0.0001556 Node 25.47002 -0.65306690 -0.29916803 e 0.9975898 Incl. 105.13701 +0.75686663 -0.28892583 From 129 observations 2019 Apr. 27-July 19, mean residual 0".6.
m1 = 2.5 + 5 log d + 50 log r(t + 70) * Gray curve is: m1 = 12.0 + 5 log d + 10.0 log r