Nakano Note (Nakano wa Kangaeru noda) NK 3430 156P/Russell-LINEAR
The following improved orbital elements, by T. Kobayashi, are from 102 observations 1986 to 2015. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.65 arc second. The comet will pass 0.36 AU from Jupiter on 2018 Mar. 1 UT. See the previous orbits in NK 948 and NK 2140. Epoch = 2014 Apr. 13.0 TT T = 2014 Apr. 16.56157 +/- 0.00012 (m.e.) TT Peri. = 357.80536 +/- 0.00009 Node = 38.98215 +/- 0.00007 (2000.0) Inc. = 20.77827 +/- 0.00002 q = 1.5848659 +/- 0.0000005 AU e = 0.5590041 +/- 0.0000001 a = 3.5938339 +/- 0.0000016 AU n' = 0.14466620 +/- 0.00000010 P = 6.813 +/- 0.0000046 years T = 1986 Dec. 4.80554 TT Epoch = 1986 Nov. 26.0 TT Peri. = 357.72660 e = 0.5572607 Node = 39.05571 (2000.0) a = 3.6037004 AU Inc. = 20.75236 n'= 0.14407249 q = 1.5954998 AU P = 6.841 years T = 1993 Oct. 11.54393 TT Epoch = 1993 Oct. 20.0 TT Peri. = 357.74727 e = 0.5557207 Node = 39.04207 (2000.0) a = 3.6120805 AU Inc. = 20.71951 n'= 0.14357140 q = 1.6047724 AU P = 6.865 years T = 2000 Aug. 17.62019 TT Epoch = 2000 Aug. 4.0 TT Peri. = 357.74160 e = 0.5570547 Node = 39.04737 (2000.0) a = 3.6050344 AU Inc. = 20.74955 n'= 0.14399253 q = 1.5968330 AU P = 6.845 years T = 2007 June 17.36499 TT Epoch = 2007 June 29.0 TT Peri. = 357.67717 e = 0.5576186 Node = 39.05018 (2000.0) a = 3.6012061 AU Inc. = 20.74794 n'= 0.14422220 q = 1.5931066 AU P = 6.834 years The predicted orbit for the 2020 return is as follows: T = 2020 Nov. 17.87155 TT Epoch = 2020 Nov. 7.0 TT Peri. = 0.42708 e = 0.6147292 Node = 35.36986 (2000.0) a = 3.4599355 AU Inc. = 17.26312 n'= 0.15314473 q = 1.3330121 AU P = 6.436 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1986/ 010115 704 0.2- 0.4+ 080208 215 0.0 0.3- 860903 413 0.6- 0.2+ 010115 704 0.1+ 0.1+ 080208 215 0.3- 0.4- 860903 413 0.0 0.3- 010115 704 1.1+ 0.6- 080214 130 0.5+ 1.0+ 860925 413 1.0- 1.0+ 010115 704 0.7+ 0.8+ 080214 130 0.1- 0.4+ 860925 413 0.3+ 1.1+ 010119 704 0.5- 0.2+ 080214 130 0.2+ 0.1+ 1993/ 010119 704 0.2- 0.3- 080214 130 0.0 0.3+ 931119 675 0.2+ 0.5- 010119 704 0.4+ 0.4+ 080402 204 0.3- 0.5+ 931119 675 0.7+ 0.9- 010119 704 0.1+ 0.5+ 2013/ 931120 675 (3.9- 5.0-) 010119 704 0.0 0.3+ 130705 Q62 0.5+ 0.0 2000/ 2007/ 130705 Q62 0.3+ 0.1- 000831 704 0.1+ 1.1+ 070911 G96 0.1+ 0.5+ 130705 Q62 0.4+ 0.2- 000831 704 0.3- 1.3+ 070911 G96 0.2+ 0.3+ 130805 Q62 1.2- 0.4+ 000831 704 0.1- 1.2+ 070911 G96 0.0 0.4+ 130805 Q62 1.1- 0.8+ 000831 704 0.2+ 1.7+ 070911 G96 0.2- 0.3+ 130805 Q62 0.6- 0.6+ 000831 704 0.2+ 1.2+ 070921 B42 0.3- 0.4+ 130805 Q62 0.0 0.5+ 000905 704 0.2- 1.0+ 071120 703 0.1- 0.7+ 2014/ 000905 704 0.3- 0.8+ 071120 703 0.6- 0.3+ 141224 G96 0.5- 0.6- 000905 704 0.2- 1.5+ 071120 703 0.0 0.5+ 141224 G96 0.2- 0.1- 001106 704 0.4- 0.3+ 071120 703 1.3- 1.2- 141224 G96 0.2- 0.1- 001106 704 0.9- 0.5+ 071218 703 1.4- 0.2- 141224 G96 0.1- 0.2+ 001106 704 0.2+ 0.8+ 071218 703 1.4- 1.9- 2015/ 001106 704 0.8- 0.9+ 071218 703 0.4- 1.6+ 150309 G96 0.5- 0.3- 001205 704 0.8+ 0.5+ 071218 703 0.7- 1.2+ 150309 G96 0.3- 0.1- 001205 704 0.8+ 1.4+ 2008/ 150309 G96 0.2- 0.1- 001205 704 0.6+ 0.5+ 080101 703 0.4- 1.0- 150309 G96 0.3- 0.3- 001205 704 0.9+ 0.9+ 080101 703 0.3- 0.3+ 150311 215 0.2- 0.2- 001205 704 1.1+ 1.0+ 080101 703 0.6- 0.6- 150311 215 0.4- 0.2- 001207 704 0.2+ 0.4+ 080101 703 1.2- 0.1- 150311 215 0.9- 0.6- 001207 704 0.0 0.7+ 080105 B42 0.5+ 0.3+ 150324 F51 0.3- 0.3- 001207 704 0.0 1.4+ 080105 B42 0.2+ 0.5+ 150324 F51 0.5- 0.4- 001207 704 0.4+ 0.8+ 080111 215 0.5+ 0.1- 150324 F51 0.3- 0.3- 001207 704 0.9+ 0.8+ 080111 215 0.9+ 0.3- 150324 F51 0.3- 0.5- 001218 699 0.7+ 1.6+ 080111 215 1.3+ 0.2- 150416 G96 1.4+ 0.1+ 001218 699 1.6+ 0.6+ 080114 B49 0.2- 0.0 150416 G96 0.5- 0.3- 001218 699 1.0+ 1.1+ 080131 G92 0.3+ 0.0 150416 G96 0.2- 0.7- 001218 699 0.3+ 0.3+ 080131 G92 0.0 0.4+ 150416 G96 0.6- 0.4- 2001/ 080131 G92 0.4+ 0.4- 010115 704 0.3+ 0.5+ 080208 215 0.2+ 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Late edition Syuichi Nakano 2017 July 9