Nakano Note (Nakano wa Kangaeru noda) NK 4045 C/2019 T4 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 53 observations 2019 Feb. 5 to 2020 Feb. 4. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.33 arc second. See the previous orbit in NK 3992 (= HICQ 2020). Epoch = 2022 May 21.0 TT T = 2022 June 9.17285 +/- 0.04224 (m.e.) TT Peri. = 351.19989 +/- 0.00063 Node = 199.93974 +/- 0.00039 (2000.0) Inc. = 53.62868 +/- 0.00006 q = 4.2426064 +/- 0.0001248 AU e = 0.9957441 +/- 0.0000645 1/a = +0.0010031 +/- 0.0000152 1/AU origin = +0.000726 (Q= 7) future = +0.001034 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 191030 474 0.0 0.0 200130 J22 0.1- 0.2+ 190205 F51 0.3- 0.2+ 191030 474 0.1+ 0.0 200130 J22 0.1- 0.1+ 190205 F51 0.1- 0.1- 191030 474 0.0 0.0 200130 J22 0.2- 0.3+ 190205 F51 0.2+ 0.2- 191104 Q11 0.3+ 0.2- 200131 T08 0.0 0.0 190205 F51 0.2+ 0.0 191104 Q11 0.5+ 0.2+ 200131 T08 0.0 0.1+ 191009 T05 0.5+ 0.3+ 191104 Q11 0.2+ 0.1- 200131 T08 0.0 0.2+ 191009 T05 0.1- 0.8- 191105 Q11 0.6+ 0.1- 200131 T08 0.4+ 0.3+ 191009 T05 (0.5- 2.0-) 191105 Q11 0.5+ 0.1- 200202 T05 0.3+ 1.0- 191009 T05 0.6+ 0.4- 191105 Q11 0.3+ 0.4- 200202 T05 0.7- 0.9- 191019 F51 0.2- 0.1+ 191106 Q11 0.2+ 0.2- 200202 T05 0.2- 0.3+ 191019 F51 0.2- 0.0 191106 Q11 0.0 0.6- 200202 T05 0.3- 0.2+ 191019 F51 0.1- 0.1+ 191222 474 0.2- 0.2+ 200202 T05 0.5+ 0.3+ 191022 I47 0.2+ 0.1- 191222 474 0.1+ 0.1+ 200202 T05 0.4- 1.3- 191022 I47 0.3+ 0.3- 191222 474 0.0 0.1+ 200202 T05 0.5+ 0.5+ 191022 I47 0.1- 0.2- 191222 474 0.2- 0.3+ 200204 T08 0.1- 0.1+ 191022 I47 0.2- 0.3- 191228 J22 0.2- 0.4+ 200204 T08 0.1+ 0.1+ 191022 Q62 0.2+ 0.1+ 191228 J22 0.3+ 0.3+ 200204 T08 0.1- 0.0 191022 Q62 0.0 0.0 191228 J22 0.5+ 0.4+ 200204 T08 0.2- 0.5- 191022 Q62 0.4+ 0.3- 2020/ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Feb. 9