Nakano Note (Nakano wa Kangaeru noda) NK 2350 P/2011 S1 (Gibbs)
The following improved orbital elements, by S. Nakano, are from 69 observations 2011 Sept. 6 to 2012 Oct. 9. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.50 arc second. See an orbit in HICQ 2012. Epoch = 2014 Aug. 11.0 TT T = 2014 Aug. 25.67915 +/- 0.53401 (m.e.) TT Peri. = 193.43943 +/- 0.03939 Node = 218.89937 +/- 0.00095 (2000.0) Inc. = 2.68018 +/- 0.00005 q = 6.8960370 +/- 0.0009406 AU e = 0.2021496 +/- 0.0001513 a = 8.6432706 +/- 0.0002335 AU n' = 0.03878706 +/- 0.00000157 P = 25.411 +/- 0.0010299 years (+/- 0.38 day) The predicted orbit for the 2039 return is as follows: T = 2039 Oct. 30.52447 TT Epoch = 2039 Oct. 19.0 TT Peri. = 192.91003 e = 0.1993469 Node = 218.73874 (2000.0) a = 8.5873469 AU Inc. = 2.68490 n'= 0.03916657 q = 6.8754857 AU P = 25.165 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2011/ 110920 291 1.1- 0.3+ 111028 C32 (2.2- 0.2+) 110906 F51 0.1- 0.1- 110920 291 0.1+ 0.5+ 111028 C32 1.3- 0.1- 110906 F51 0.1- 0.3- 110920 291 0.8- 0.2+ 111028 C32 1.5- 0.2- 110906 F51 0.0 0.1- 110920 F65 0.3- 0.1+ 111114 204(19.7- 5.7-) 110906 F51 0.0 0.0 110920 F65 0.3- 0.1+ 111114 204(19.5- 4.9-) 110906 F51 0.0 0.1- 110920 F65 0.6+ 0.1- 2012/ 110918 G96 0.3+ 0.8- 110921 E10 0.0 1.0- 120917 G96 0.1- 0.5+ 110918 G96 0.8- 0.2- 110921 E10 0.1+ 0.3- 120917 G96 0.2- 0.5+ 110918 G96 0.3+ 0.1- 110921 E10 0.1+ 0.4- 120917 G96 0.2+ 0.2- 110918 G96 0.9- 0.1+ 110923 H06 0.2+ 1.7- 120917 G96 0.6+ 0.1- 110918 G96 0.9- 0.5- 110923 H06 0.4+ 0.6- 120921 G96 0.0 0.0 110918 G96 0.6- 0.2+ 110924 G96 0.6- 0.0 120921 G96 0.1- 0.5- 110918 G96 0.0 0.5+ 110924 G96 0.7- 0.3+ 120921 G96 0.8- 0.1+ 110918 F51 0.3+ 0.0 110924 G96 1.2- 0.6+ 120921 G96 0.4- 0.3- 110918 F51 0.4+ 0.2+ 110924 G96 0.2- 0.4- 120921 G96 0.0 0.2- 110918 F51 0.3+ 0.1+ 110924 G96 0.2- 0.2- 120921 G96 0.2- 0.1+ 110918 F51 0.0 0.0 110924 G96 0.1+ 0.1- 120921 G96 0.1+ 0.3+ 110918 F51 0.2+ 0.1+ 110924 G96 0.2- 0.2- 120921 G96 0.2- 0.2+ 110918 F51 0.1+ 0.2+ 110924 G96 0.4- 0.3- 120922 H06 0.2- 0.6- 110919 G96 0.0 0.7+ 110924 152 (0.4- 2.7-) 120922 H06 1.0- 0.0 110919 G96 0.2- 0.3+ 110924 152 0.1+ 0.2- 120922 H06 1.6- 0.7+ 110919 G96 0.4- 0.3- 110924 152 1.5+ 1.4+ 121009 F51 0.2+ 0.0 110919 G96 1.0- 0.3- 111003 C32 0.9+ 0.7+ 121009 F51 0.1+ 0.0 110920 807 0.3+ 0.9+ 111003 C32 1.0- 0.5+ 121009 F51 0.1+ 0.0 110920 807 0.3+ 0.8+ 111028 C32 0.8- 0.4+ 121009 F51 0.1+ 0.1- ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2012 Oct. 15