Nakano Note (Nakano wa Kangaeru noda) NK 3212 P/2013 T2 (Schwartz)

The following improved orbital elements, by S. Nakano, are from 117 observations 2013 Sept. 14 to Dec. 11. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.52 arc second. Epoch = 2013 July 7.0 TT T = 2013 June 20.66411 +/- 0.00224 (m.e.) TT Peri. = 342.51099 +/- 0.00069 Node = 2.63199 +/- 0.00047 (2000.0) Inc. = 9.35265 +/- 0.00009 q = 1.5996019 +/- 0.0000161 AU e = 0.5284203 +/- 0.0000211 a = 3.3920079 +/- 0.0000458 AU n' = 0.15776795 +/- 0.00000320 P = 6.247 +/- 0.0001266 years (+/- 0.05 day) The predicted orbit for the 2019 return is as follows: T = 2019 Nov. 30.32852 TT Epoch = 2019 Nov. 13.0 TT Peri. = 345.44695 e = 0.5009871 Node = 0.82385 (2000.0) a = 3.4877399 AU Inc. = 9.45608 n'= 0.15131708 q = 1.7404270 AU P = 6.514 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 131019 926 0.4- 0.2+ 131103 D29 0.1+ 0.2- 130914 703 1.1- 0.6+ 131019 H01 0.7+ 0.1+ 131103 D29 0.0 0.3- 130914 703 1.4- 0.8- 131019 H01 0.4+ 0.1- 131104 372 0.0 0.3+ 130914 703 0.7+ 0.9+ 131019 926 0.9+ 0.5+ 131104 372 0.2- 0.3+ 130914 703 1.2+ 0.0 131019 448 0.3+ 1.0- 131104 372 0.7- 0.3+ 131015 926 0.3- 0.7- 131019 448 1.3+ 0.1- 131105 372 0.1- 0.3- 131015 926 1.4- 0.3- 131019 448 0.0 0.4- 131105 372 1.0- 0.3+ 131015 926 1.9- 1.1- 131020 673 0.7+ 0.2+ 131107 372 0.4- 0.1- 131016 926 0.3+ 0.1+ 131020 673 0.8+ 0.4+ 131107 372 1.1- 0.4- 131016 926 0.1+ 0.1+ 131020 673 0.3+ 0.1- 131110 W96 0.6+ 0.1- 131016 926 1.6+ 0.1+ 131027 349 0.3- 0.1+ 131110 W96 0.4- 1.3+ 131016 926 0.3- 0.3+ 131027 349 0.5- 0.1- 131110 372 0.4- 0.8+ 131016 926 0.7- 0.8- 131030 215 0.2- 0.4- 131110 372 0.0 0.7+ 131016 926 0.3- 0.2- 131030 215 0.4- 0.6- 131110 372 0.6+ 0.6- 131016 926 0.3+ 0.2+ 131030 215 0.7- 0.7- 131111 H45 0.3+ 0.1+ 131016 F65 0.9+ 0.2+ 131030 C10 0.1+ 0.1+ 131111 H45 0.3+ 0.0 131016 926 0.2- 0.5+ 131030 C10 0.2+ 0.2- 131111 H45 0.1+ 0.0 131016 926 0.5- 0.0 131031 C10 0.0 0.5- 131111 H45 0.3+ 0.0 131016 F65 0.8+ 0.3+ 131031 372 1.0+ 0.1- 131111 H45 0.1- 0.1- 131016 F65 0.7+ 0.7+ 131031 372 0.8+ 0.2- 131111 H45 0.2- 0.2- 131016 F65 0.5+ 0.3+ 131031 511 0.1- 0.2- 131111 372 0.4- 0.3- 131017 I89 0.1+ 0.1- 131031 511 0.1- 0.4- 131111 372 0.3- 0.2- 131017 I89 0.2+ 0.0 131031 511 0.2- 0.2- 131112 K25 0.4- 0.1+ 131017 I89 0.2+ 0.0 131101 585 0.5- 0.3- 131112 K25 0.4- 0.2- 131017 I89 0.6+ 0.1- 131101 585 0.0 0.1+ 131127 130 0.6+ 0.3- 131017 H21 0.2+ 0.2+ 131101 585 0.6- 0.6- 131127 130 0.6+ 0.0 131017 H21 0.0 0.0 131101 585 0.2- 0.0 131127 K25 0.3+ 1.5- 131017 H21 0.0 0.1- 131101 585 0.6- 0.3- 131127 K25 0.5+ 0.5- 131017 926 1.1- 0.2+ 131101 585 0.0 0.0 131129 F51 0.1- 0.3+ 131017 926 0.9- 0.0 131101 585 0.6+ 0.3+ 131129 F51 0.0 0.0 131017 926 0.7- 0.5- 131101 585 0.2- 0.4- 131129 F51 0.0 0.3+ 131018 926 0.0 0.0 131101 585 0.1- 0.4- 131129 F51 0.0 0.3+ 131018 926 0.1- 0.2+ 131101 585 0.1- 0.4- 131201 349 0.3- 0.4- 131018 926 0.3+ 0.6+ 131101 585 0.9+ 0.4+ 131201 349 0.4+ 0.0 131018 926 0.7- 0.5- 131102 H45 0.2- 0.1- 131201 D29 0.4- 0.7- 131018 926 0.2- 0.3+ 131102 H45 0.2+ 0.3+ 131201 D29 0.2- 1.4- 131018 926 0.0 0.4+ 131102 H45 0.0 0.4+ 131201 D29 0.4+ 1.0- 131019 H01 0.6+ 0.0 131102 H45 0.1- 0.2+ 131211 C10 (1.8+ 2.2-) 131019 926 0.0 1.3+ 131102 H45 0.2+ 0.2- 131211 C10 0.4+ 1.1- 131019 H01 0.7+ 0.2+ 131103 D29 0.4- 0.2- ( ) -------- Rejected Obs.

Associate of the CBAT Late edition Syuichi Nakano 2014 Jan. 18

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