Nakano Note (Nakano wa Kangaeru noda) NK 3561 C/2017 U2 (Fuls)
The following improved orbital elements, by S. Nakano, are from 49 observations 2017 July 26 to Oct. 28. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.46 arc second. See an orbit in HICQ 2018. Epoch = 2017 Sept. 4.0 TT T = 2017 Aug. 28.09349 +/- 0.07108 (m.e.) TT Peri. = 147.72532 +/- 0.00569 Node = 149.71329 +/- 0.00084 (2000.0) Inc. = 95.43089 +/- 0.00132 q = 6.7002627 +/- 0.0001067 AU e = 0.9992076 +/- 0.0001324 1/a = +0.0001183 +/- 0.0000198 1/AU origin = +0.000675 (Q= 7) future = +0.000604 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 171023 734 0.3- 0.5+ 171025 U69 0.0 0.3- 170726 F51 0.1- 0.0 171023 734 0.3- 0.6+ 171025 U69 0.3+ 0.1+ 170726 F51 0.0 0.1- 171023 734 0.3- 0.3- 171025 U69 0.7+ 0.1- 170726 F51 0.0 0.0 171023 926 0.2- 0.1+ 171026 V06 0.0 0.1- 170726 F51 0.1+ 0.1+ 171023 691 0.2- 0.0 171026 V06 0.1- 0.2- 170908 F51 0.2- 0.2- 171023 926 0.1+ 0.3+ 171026 V06 0.2- 0.3- 170908 F51 0.1+ 0.3+ 171023 691 0.1- 0.1+ 171027 V06 0.2- 0.5- 170908 F51 0.1+ 0.5- 171023 926 0.1+ 0.1+ 171027 V06 0.2- 1.0- 170908 F51 0.0 0.3+ 171023 691 0.0 0.5+ 171027 V06 0.1- 0.3- 171022 G96 0.3+ 0.0 171023 G96 0.5+ 0.6+ 171027 V06 0.4+ 0.8- 171022 G96 0.2+ 0.2+ 171023 G96 0.1+ 0.4+ 171028 V06 0.9+ 0.1+ 171022 G96 0.7- 0.9+ 171023 G96 0.0 0.0 171028 V06 0.4+ 0.1+ 171022 G96 0.1- 0.5+ 171023 G96 0.1+ 0.3+ 171028 V06 1.0+ 0.5- 171022 G96 0.7+ 0.3+ 171024 U69 0.6+ 0.7- 171028 291 0.7- 1.0- 171022 G96 0.4- 0.7- 171024 U69 0.7+ 0.5- 171028 291 0.8- 1.2+ 171022 G96 0.2- 0.8+ 171024 691 0.3- 0.8- 171028 291 1.5- 0.8+ 171022 G96 0.3- 0.1- 171024 691 0.4+ 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 Mar. 11