Epoch 2019 Feb. 6.0 TT = JDT 2458520.5 T 2019 Feb. 20.25584 TT Veres q 3.7548341 (2000.0) P Q n 0.09567505 Peri. 216.65390 +0.62990109 +0.75516942 a 4.7344578 Node 93.12538 -0.66243109 +0.64437341 e 0.2069136 Incl. 10.47314 -0.40547462 +0.12042447 P 10.3 From 29 observations 2019 July 10-Oct. 4, mean residual 0".5.
m1 = 12.0 + 5 logΔ + 10.0 log r