Epoch 2018 Oct. 9.0 TT = JDT 2458400.5 T 2018 Oct. 3.78414 TT Rudenko q 4.7076641 (2000.0) P Q n 0.03674329 Peri. 260.79956 +0.30441740 -0.95213608 a 8.9608807 Node 171.32500 +0.93006656 +0.29083202 e 0.4746427 Incl. 10.58006 +0.20568482 +0.09409371 P 26.8 From 21 observations 2017 Sept. 28-2020 Jan. 27, mean residual 0".2.
m1 = 12.5 + 5 logΔ + 10.0 log r