Nakano Note (Nakano wa Kangaeru noda) NK 3217 P/Gibbs (2007 R3 = 2016 N3)
The following improved orbital elements, by S. Nakano, are from 138 observations 2007 to 2016. 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 residuals of recovery observations were +542" for Right Ascension and +274" for Declination from the prediction in NK 2492 (= HICQ 2015) with the delta-T correction = -0.59 day. Epoch = 2016 May 12.0 TT T = 2016 May 26.91724 +/- 0.01774 (m.e.) TT Peri. = 312.21113 +/- 0.00728 Node = 30.07221 +/- 0.00113 (2000.0) Inc. = 3.79254 +/- 0.00021 q = 2.5207889 +/- 0.0000901 AU e = 0.4138325 +/- 0.0000212 a = 4.3004583 +/- 0.0000508 AU n' = 0.11051773 +/- 0.00000196 P = 8.918 +/- 0.0001582 years (+/- 0.06 day) T = 2007 July 6.61912 TT Epoch = 2007 June 29.0 TT Peri. = 312.17658 e = 0.4158983 Node = 30.08460 (2000.0) a = 4.2797434 AU Inc. = 3.80058 n'= 0.11132110 q = 2.4998053 AU P = 8.854 years The predicted orbit for the 2025 return is as follows: T = 2025 Apr. 22.80569 TT Epoch = 2025 May 5.0 TT Peri. = 312.38496 e = 0.4150609 Node = 29.95983 (2000.0) a = 4.2849718 AU Inc. = 3.79542 n'= 0.11111741 q = 2.5064474 AU P = 8.870 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2007/ 070916 473 0.0 0.0 071009 673 0.5- 0.3+ 070910 691 0.7- 0.3+ 070916 473 0.1- 0.2- 071009 585 1.2+ 1.2+ 070910 691 2.0- 0.7- 070916 473 0.2- 0.1- 071014 704 0.8- 1.4- 070910 691 0.9- 0.0 070916 H55 0.6+ 0.1+ 071014 704 0.4+ 1.0- 070913 704 0.5- 0.5- 070916 H55 (2.2+ 0.4-) 071014 704 0.7- 0.5- 070913 704 0.0 0.7- 070916 H55 0.3- 0.2+ 071015 246 1.8- 0.1+ 070913 704 0.9+ 0.4- 070916 H36 1.5- 0.7+ 071015 246 1.5- 0.1+ 070914 G96 0.1+ 0.4- 070916 H36 0.3- 0.2+ 071015 246 1.6- 0.1- 070914 G96 0.4+ 0.3- 070916 H36 0.9- 1.6- 071015 246 1.6- 1.1+ 070914 G96 0.7+ 0.7- 070917 H55 0.4+ 0.1+ 071015 246 0.2+ 0.8+ 070914 G96 0.4+ 0.7- 070917 355 0.7- 0.8- 071015 A82 0.4+ 0.1- 070914 G96 0.7+ 0.2- 070917 355 (2.1- 1.2-) 071015 A82 0.4+ 0.1- 070914 G96 0.7+ 0.1- 070917 355 (2.2- 0.3+) 071015 A82 0.3+ 0.0 070914 G96 0.2+ 0.4- 070918 J47 0.2- 1.1+ 071015 A82 0.3- 0.1+ 070914 G96 0.8+ 0.2+ 070919 704 (2.0- 2.7+) 071017 699 0.4+ 0.8+ 070914 G96 0.3+ 0.2- 070919 704 0.1- 1.1- 071017 699 0.1+ 0.5+ 070914 G96 0.7+ 0.1+ 070919 704 0.0 0.7+ 071017 699 1.3+ 0.5- 070914 G96 1.2+ 0.3- 070919 704 0.7- 0.5+ 071017 699 0.5- 0.6- 070914 G96 0.8+ 0.1- 070919 691 1.7- 1.1- 071019 G96 0.0 0.2- 070915 H55 0.0 0.4+ 070919 691 1.0- 0.3- 071019 G96 0.4+ 0.1- 070915 H55 0.5+ 0.3- 070919 691 0.0 0.6- 071019 G96 0.2- 0.2- 070915 H55 0.6+ 0.5- 070919 204 0.2+ 0.2- 071019 G96 0.2+ 0.1- 070915 G96 0.5+ 0.2- 070920 204 0.0 0.0 071105 G96 0.3+ 0.1- 070915 G96 0.4+ 0.4- 070920 349 0.5- 0.1+ 071105 G96 0.0 0.5- 070915 G96 0.6+ 0.1- 070920 349 0.6- 0.4- 071105 G96 0.4- 0.1- 070915 G96 0.4+ 0.4- 070920 349 0.4- 0.0 071105 G96 0.6- 0.0 070915 H36 1.0- 0.8- 070920 215 1.6+ 0.2- 071110 213 0.2+ 0.3- 070915 H36 0.5- 0.6- 070921 850 0.7+ 0.2- 071110 213 0.2+ 0.1- 070915 H36 1.2+ 0.3- 070921 850 0.2+ 0.4- 2016/ 070915 691 0.5+ 0.1- 071004 673 0.3+ 0.3+ 160715 703 1.2- 0.9+ 070915 711 0.6+ 0.6+ 071004 673 0.1- 0.1+ 160715 703 0.1+ 1.5+ 070915 G96 0.6+ 0.0 071004 673 0.3+ 0.1- 160716 H36 0.7+ 0.1+ 070915 G96 0.6+ 0.1- 071004 673 0.2+ 0.1- 160716 H36 0.0 0.4+ 070915 G96 0.6+ 0.0 071006 704 0.9- 1.1+ 160716 H36 0.9- 0.7+ 070915 G96 0.6+ 0.2- 071006 704 (1.8- 2.2-) 160716 L51 0.6- 0.1- 070915 711 0.8+ 0.0 071006 704 (0.4- 3.0-) 160716 L51 1.0- 1.0+ 070915 691 0.4- 0.1- 071006 704 0.5+ 0.9- 160716 L51 0.5- 0.8+ 070915 711 0.4+ 0.4- 071006 213 0.7- 1.0+ 160717 204 0.2- 0.4+ 070915 691 0.5- 1.5- 071006 213 0.7- 0.9+ 160717 204 0.3+ 0.5+ 070915 A17 1.3+ 0.1+ 071006 213 0.7- 0.9+ 160717 204 0.1- 0.3+ 070915 473 0.2- 0.0 071006 J47 0.1+ 0.6+ 160717 W96 0.3- 0.5+ 070915 A13 0.2+ 0.8- 071006 J46 0.5+ 0.5+ 160717 W96 1.0- 0.6+ 070915 235 0.1- 1.6+ 071007 246 0.3+ 0.9+ 160717 H21 0.1+ 0.4+ 070915 A17 0.0 0.9+ 071007 246 0.6+ 0.3+ 160717 H21 0.1+ 0.5+ 070915 A17 1.0- 0.3- 071007 246 1.1+ 0.3+ 160717 H21 0.1+ 0.7+ 070915 A13 0.0 0.7- 071007 246 1.8+ 0.1+ 160717 H21 0.1+ 0.6+ 070915 J95 0.3+ 0.1- 071009 673 0.4- 0.9+ 160717 W96 0.9- 0.3- 070916 157 0.9+ 0.7- 071009 673 0.5- 0.7+ 160717 H21 0.3+ 0.6+ 070916 J95 0.5+ 0.9- 071009 673 0.5- 0.6+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2016 July 20