Nakano Note (Nakano wa Kangaeru noda) NK 4164 C/2017 U2 (Fuls)
The following improved orbital elements, by S. Nakano, are from 53 observations 2017 July 26 to 2018 Sept. 7. 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. See the previous orbit in NK 3561. Epoch = 2017 Sept. 4.0 TT T = 2017 Aug. 28.16490 +/- 0.01704 (m.e.) TT Peri. = 147.73029 +/- 0.00137 Node = 149.70905 +/- 0.00010 (2000.0) Inc. = 95.43752 +/- 0.00016 q = 6.7008033 +/- 0.0000248 AU e = 0.9998789 +/- 0.0000353 1/a = +0.0000181 +/- 0.0000053 1/AU origin = +0.000575 (Q= 8) future = +0.000504 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 0.2- 0.3- 171026 V06 0.2+ 0.3- 170726 F51 0.0 0.1- 171023 926 0.0 0.1+ 171026 V06 0.0 0.4- 170726 F51 0.1+ 0.2- 171023 691 0.0 0.0 171027 V06 0.0 0.5- 170726 F51 0.2+ 0.1- 171023 926 0.2+ 0.2+ 171027 V06 0.0 1.0- 170726 F51 0.2+ 0.0 171023 691 0.1+ 0.0 171027 V06 0.2+ 0.3- 170908 F51 0.5- 0.0 171023 926 0.3+ 0.0 171027 V06 0.6+ 0.8- 170908 F51 0.2- 0.4+ 171023 691 0.2+ 0.4+ 171028 V06 1.2+ 0.1+ 170908 F51 0.3- 0.3- 171023 G96 0.7+ 0.5+ 171028 V06 0.7+ 0.1+ 170908 F51 0.3- 0.5+ 171023 G96 0.2+ 0.4+ 171028 V06 1.3+ 0.5- 171022 G96 0.4+ 0.1- 171023 G96 0.1+ 0.1- 171028 291 0.4- 1.1- 171022 G96 0.4+ 0.1+ 171023 G96 0.2+ 0.2+ 171028 291 0.5- 1.1+ 171022 G96 0.6- 0.9+ 171024 U69 0.7+ 0.8- 171028 291 1.2- 0.8+ 171022 G96 0.0 0.5+ 171024 U69 0.8+ 0.6- 2018/ 171022 G96 0.8+ 0.2+ 171024 691 0.1- 0.8- 180812 W84 0.3- 0.3- 171022 G96 0.3- 0.7- 171024 691 0.5+ 0.3+ 180812 W84 0.2- 0.5- 171022 G96 0.1- 0.8+ 171025 U69 0.2+ 0.4- 180907 W84 0.2+ 0.2+ 171022 G96 0.2- 0.2- 171025 U69 0.5+ 0.0 180907 W84 0.0 0.3+ 171023 734 0.1- 0.4+ 171025 U69 0.9+ 0.1- 171023 734 0.1- 0.6+ 171026 V06 0.3+ 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Aug. 8