Nakano Note (Nakano wa Kangaeru noda) NK 3710 C/2017 U4 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 68 observations 2017 Jan. 2 to 2018 Oct. 10. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.47 arc second. Residuals from an orbit in NK 3563 were +4" and +2" for 2018 October observations. Epoch = 2018 Oct. 9.0 TT T = 2018 Sept.25.26577 +/- 0.00737 (m.e.) TT Peri. = 159.14961 +/- 0.00055 Node = 245.95100 +/- 0.00013 (2000.0) Inc. = 158.22656 +/- 0.00005 q = 7.7242585 +/- 0.0000339 AU e = 1.0036866 +/- 0.0000259 1/a = -0.0004773 +/- 0.0000034 1/AU origin = +0.000106 (Q= 8) future = +0.000096 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 171030 926 0.6+ 0.2+ 171117 I52 1.6+ 0.0 170102 F51 0.2+ 0.0 171030 926 0.5- 0.1- 171119 I52 0.6+ 0.2+ 170102 F51 0.1- 0.2+ 171102 926 0.0 0.6+ 171119 I52 1.4+ 0.4- 170102 F51 0.2- 0.0 171102 926 0.4+ 0.2+ 171119 I52 0.7+ 0.5- 171027 F51 0.2+ 0.1+ 171102 926 0.1+ 0.1- 171124 F51 0.1+ 0.1- 171027 F51 0.3- 0.3+ 171103 926 0.3+ 0.5+ 171124 F51 0.3- 0.3+ 171027 F51 0.3+ 0.1+ 171103 926 0.8+ 0.1+ 171124 F51 0.1+ 0.0 171028 H01 0.2+ 0.1- 171103 926 0.7+ 0.5+ 171212 568 0.2- 0.0 171028 926 0.3+ 1.1+ 171111 711 0.3+ 0.0 171212 568 0.1- 0.0 171028 H01 0.0 0.1+ 171111 711 0.1+ 0.3+ 171212 568 0.1- 0.1- 171028 H01 0.0 0.2+ 171111 711 0.3+ 0.3+ 171225 215 (2.5+ 0.3-) 171028 H01 0.1- 0.0 171113 U69 0.1- 0.8- 171225 215 1.5+ 0.4+ 171028 926 0.5+ 0.4+ 171113 U69 0.5- 0.7- 171225 215 0.3- 0.1+ 171028 926 0.2+ 0.4+ 171114 I52 1.2- 1.1+ 171226 F51 0.0 0.2- 171030 H01 0.0 0.0 171114 I52 0.4+ 0.9+ 171226 F51 0.0 0.2- 171030 711 0.2- 0.4+ 171114 I52 0.8+ 0.2+ 171226 F51 0.1+ 0.2- 171030 H01 0.0 0.1- 171116 568 0.2- 0.0 171226 F51 0.1- 0.2- 171030 711 0.6- 0.5+ 171116 568 0.1- 0.1- 2018/ 171030 711 0.8- 0.4- 171116 568 0.1- 0.1- 181009 461 0.1- 0.6+ 171030 H01 0.1- 0.0 171116 I52 0.3+ 0.3- 181009 461 0.3- 0.5+ 171030 H01 0.0 0.0 171116 I52 0.5+ 0.3- 181010 461 0.1- 0.7+ 171030 I52 0.6- 1.0- 171116 I52 1.3+ 0.4- 181010 461 0.0 0.3+ 171030 I52 0.3+ 0.3- 171117 I52 0.5+ 0.6- 181010 461 0.1- 0.4+ 171030 926 0.0 0.0 171117 I52 1.3+ 0.5- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Nov. 21