Nakano Note (Nakano wa Kangaeru noda) NK 4281 347P/PANSTARRS
The following improved orbital elements, by T. Kobayashi, are from 146 observations 2002 to 2018. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.55 arc second. See the previous orbits in NK 3236 and NK 3272 (= HICQ 2017). Epoch = 2016 Sept. 9.0 TT T = 2016 Sept.11.39661 +/- 0.00085 (m.e.) TT Peri. = 98.44928 +/- 0.00021 Node = 261.04751 +/- 0.00012 (2000.0) Inc. = 11.74378 +/- 0.00001 q = 2.2239795 +/- 0.0000027 AU e = 0.3843967 +/- 0.0000008 a = 3.6126825 +/- 0.0000064 AU n' = 0.14353552 +/- 0.00000039 P = 6.867 +/- 0.0000182 years T = 2003 Jan. 12.27781 TT Epoch = 2003 Jan. 1.0 TT Peri. = 98.78116 e = 0.3888518 Node = 261.22556 (2000.0) a = 3.5956202 AU Inc. = 11.77092 n'= 0.14455841 q = 2.1974566 AU P = 6.818 years T = 2009 Nov. 5.15134 TT Epoch = 2009 Nov. 25.0 TT Peri. = 98.45926 e = 0.3865325 Node = 261.08750 (2000.0) a = 3.6050998 AU Inc. = 11.75103 n'= 0.14398861 q = 2.2116116 AU P = 6.845 years The predicted orbit for the 2023 return is as follows: T = 2023 July 20.04525 TT Epoch = 2023 Aug. 4.0 TT Peri. = 98.43287 e = 0.3864830 Node = 261.01140 (2000.0) a = 3.6062592 AU Inc. = 11.75381 n'= 0.14391917 q = 2.2125014 AU P = 6.848 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2002/ 160922 G96 0.1- 0.8- 161017 F51 0.4- 0.6+ 020712 644 0.0 0.6+ 160922 G96 0.1+ 0.6- 161017 F51 0.5- 0.6+ 020712 644 0.4+ 0.1- 160922 291 0.1+ 0.2- 161017 F51 0.5- 0.8+ 020712 644 0.3+ 0.3+ 160922 Z99 0.5- 0.3- 161017 F51 0.4- 0.7+ 020728 644 0.0 0.2- 160922 Z99 0.4+ 0.4+ 161022 691 0.3- 0.3+ 020728 644 0.3+ 0.3- 160922 Z99 0.0 0.1- 161022 691 0.1- 0.3+ 020728 644 0.3- 0.6- 160923 568 0.2- 0.4+ 161022 691 0.4- 0.4+ 020903 644 0.4- 0.6+ 160923 568 0.3- 0.4+ 161023 703 0.3- 1.3- 020903 644 0.5- 0.1+ 160923 568 0.3- 0.4+ 161023 703 1.0+ 0.1- 020903 644 0.3+ 0.4+ 160923 568 0.3- 0.5+ 161023 703 0.7+ 1.1- 2009/ 160923 568 0.3- 0.5+ 161026 691 0.5+ 0.3+ 090826 703 0.7- 0.8+ 160924 W55 0.2- 0.0 161026 691 0.5+ 0.0 090826 703 0.8- 0.1- 160924 W55 0.3- 0.6+ 161026 691 0.1- 0.3+ 090826 703 0.1+ 0.3+ 160924 W55 0.0 0.2- 161027 G96 0.9+ 0.1- 090826 703 1.0- 1.0- 160927 A71 0.1- 0.1- 161027 G96 1.1+ 0.2- 091019 703 0.5+ 0.5- 160927 A71 0.2- 0.0 161027 G96 0.8+ 0.1- 091019 703 1.2+ 0.5- 160927 A71 0.2+ 0.1+ 161027 G96 0.7+ 0.0 091019 703 0.6+ 0.4- 160929 A71 0.1+ 0.5+ 161029 157 0.3+ 0.1+ 091019 703 0.6+ 0.2- 160929 A71 0.3+ 0.3+ 161029 157 0.4+ 0.0 2016/ 160929 A71 0.2+ 0.4+ 161029 157 0.2+ 0.1+ 160620 F51 0.3+ 0.7+ 160929 215 0.1+ 0.0 161031 691 0.3- 0.1+ 160620 F51 0.4+ 0.8+ 160929 215 0.1- 0.2- 161031 691 0.2+ 0.1+ 160620 F51 0.6+ 0.7+ 160929 215 0.4- 0.3- 161031 691 0.5- 0.2+ 160709 G96 0.4+ 0.6+ 160930 G40 0.2+ 0.3+ 161104 372 0.5- 0.3+ 160709 G96 0.1- 0.4+ 160930 G40 0.1- 0.1- 161104 372 0.3- 0.2+ 160709 G96 0.5+ 0.3+ 160930 G40 0.3- 0.3+ 161104 D29 0.3+ 0.4- 160709 G96 0.5+ 1.0+ 161001 703 0.1+ 0.2+ 161104 D29 0.1- 0.4- 160905 H15 0.5- 0.6- 161001 703 0.0 0.8- 161104 D29 0.1- 0.2+ 160905 H15 0.0 0.8+ 161001 703 0.2+ 1.4- 161105 D29 0.2+ 0.7- 160905 H15 0.3- 0.3+ 161001 703 0.0 0.4- 161105 D29 0.1- 0.2+ 160919 F51 0.2- 0.5+ 161003 H06 0.4- 0.5+ 161105 D29 0.2- 0.5+ 160919 F51 0.2- 0.5+ 161003 H06 0.5- 0.6+ 161106 703 0.5+ 0.7- 160921 F51 0.3- 0.4+ 161003 H06 0.6- 0.6+ 161106 703 0.5+ 0.7- 160921 F51 0.3- 0.2+ 161003 H06 0.3- 0.3- 161106 703 1.1+ 0.1+ 160921 F51 0.3- 0.3+ 161003 H06 0.3- 0.2- 161130 G96 1.0- 0.2+ 160921 F51 0.2- 0.3+ 161003 K25 0.0 0.2+ 161130 G96 0.2- 0.3- 160921 D29 0.8- 0.3+ 161003 K25 0.2- 0.0 161130 G96 0.0 0.3- 160921 D29 0.7- 0.0 161004 K25 0.0 0.2+ 161130 G96 0.3- 0.5+ 160921 D29 0.1- 0.4- 161004 K25 0.2+ 0.1+ 161225 349 1.7+ 0.8- 160922 118 0.6- 0.3- 161005 C41 0.0 0.1+ 161225 349 1.2+ 0.2- 160922 118 0.5- 0.7- 161005 C41 0.7+ 0.7+ 2017/ 160922 118 0.8- 0.2- 161005 C41 0.8+ 0.9+ 170101 215 0.2- 0.0 160922 291 0.2- 0.5- 161006 703 0.6- 2.0+ 170101 215 0.5- 0.3+ 160922 926 0.1- 0.7- 161006 703 0.9+ 0.8- 170101 215 0.4- 0.3+ 160922 926 0.1- 0.6- 161010 703 1.7+ 1.5- 2018/ 160922 U69 0.1- 0.2- 161010 703 0.9+ 0.4- 180124 G96 1.3+ 2.4+ 160922 926 0.0 0.2- 161010 703 0.3+ 1.7- 180124 G96 0.7+ 1.5+ 160922 U69 0.1+ 0.6- 161010 372 0.2+ 0.3+ 180124 G96 0.1- 0.3+ 160922 U69 0.0 0.4- 161010 372 0.1- 0.1+ 180124 G96 0.7- 1.3- 160922 G96 0.3- 0.8- 161010 628 0.7- 0.4+ 160922 G96 0.0 0.6- 161010 628 0.4- 0.4+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Dec. 23