Nakano Note (Nakano wa Kangaeru noda) NK 4236 C/2019 E3 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 86 observations 2015 Jan. 22 to 2020 Oct. 17. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.42 arc second. Orbit depends on the first and last one night observtions. See the previous orbit in NK 3955 (= HICQ 2020). Epoch = 2023 Dec. 2.0 TT T = 2023 Nov. 15.26863 +/- 0.01730 (m.e.) TT Peri. = 280.69962 +/- 0.00093 Node = 347.23333 +/- 0.00004 (2000.0) Inc. = 84.29886 +/- 0.00005 q = 10.3129003 +/- 0.0001150 AU e = 0.9987212 +/- 0.0000250 1/a = +0.0001240 +/- 0.0000024 1/AU origin = +0.000018 (Q= 9) future = +0.000046 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 190307 Q62 0.0 0.1+ 191126 Q62 0.1- 0.6+ 150122 F51 0.2+ 0.0 190307 Q62 0.1+ 0.0 191222 474 0.4+ 0.1+ 150122 F51 0.4- 0.1- 190307 Q62 0.5- 0.3+ 191222 474 0.3- 0.2- 150122 F51 0.2+ 0.1+ 190307 Q62 0.7- 0.6+ 191222 474 0.2- 0.2+ 150122 F51 0.1- 0.1+ 190308 J04 0.1- 0.1- 191222 474 0.1+ 0.2+ 2019/ 190308 J04 0.4+ 0.1+ 2020/ 190301 T08 0.1- 0.3+ 190308 J04 0.0 0.0 200224 474 0.1- 0.1- 190301 T08 1.2+ 0.2- 190313 807 0.0 0.3- 200224 474 0.1+ 0.2- 190301 T08 0.5- 0.3- 190313 807 0.4+ 0.1- 200224 474 0.3- 0.2- 190305 T08 0.0 0.9- 190313 807 0.0 0.2- 200224 474 0.2- 0.4- 190305 T08 1.3+ 0.2- 190313 I47 0.3- 0.2- 200320 E85 0.2- 0.3+ 190305 T08 0.2- 1.0+ 190313 I47 0.1+ 0.1- 200320 E85 0.4+ 0.9+ 190305 T08 0.1- 0.9+ 190313 W87 0.3- 0.0 200320 E85 0.4+ 0.8+ 190305 K92 0.1+ 0.2- 190313 W87 0.2- 0.1- 200320 E85 0.1+ 0.6- 190305 K92 0.0 0.2- 190313 W87 0.3- 0.1- 200422 T05 0.6- 0.2+ 190305 K92 0.1- 0.1- 190313 W87 0.2- 0.1- 200422 T05 (0.9+ 3.8+) 190305 K92 0.1- 0.0 190316 807 0.0 0.1+ 200422 T05 0.8- 0.6+ 190306 807 0.1+ 0.4+ 190316 807 0.4- 0.1+ 200422 T05 (1.6+ 2.2+) 190306 807 0.2- 0.3+ 190321 807 0.1+ 0.2+ 200422 T05 1.1- 0.1- 190306 807 0.1- 0.3+ 190321 807 0.0 0.0 200422 T05 0.7+ 0.5+ 190306 W86 0.1+ 0.0 190321 807 0.2- 0.2- 200422 T05 0.5- 0.2- 190306 W86 0.1+ 0.4- 190405 F51 0.2+ 0.3- 200427 Q62 0.0 0.1- 190306 W86 0.2- 0.1- 190405 F51 0.1- 0.0 200427 Q62 0.0 0.1- 190306 W86 0.1- 0.3- 190405 F51 0.3+ 0.2- 200427 Q62 0.2- 0.1- 190306 474 0.3- 0.3+ 190405 F51 0.2- 0.1- 200429 X03 0.5- 0.4- 190306 474 0.4- 0.2+ 190521 Q62 1.1+ 0.9+ 200429 X03 0.2+ 0.0 190306 474 0.2- 0.1- 190521 Q62 0.8+ 1.1+ 200429 X03 0.3+ 1.0+ 190306 474 0.2+ 0.8+ 191124 474 1.0- 0.0 201017 W88 0.0 0.1- 190307 Q62 0.6- 0.6- 191124 474 0.4- 0.3+ 201017 W88 0.2- 0.1- 190307 Q62 0.2- 0.2+ 191124 474 1.6+ 1.5- 190307 Q62 0.1- 0.0 191126 Q62 0.1+ 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Oct. 7