Nakano Note (Nakano wa Kangaeru noda) NK 2911 P/2014 W9 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 107 observations 2014 Oct. 25 to 2015 Apr. 15. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.41 arc second. See the previous orbit in NK 2833. Epoch = 2015 Feb. 27.0 TT T = 2015 Feb. 15.70634 +/- 0.00011 (m.e.) TT Peri. = 167.77006 +/- 0.00007 Node = 21.28798 +/- 0.00008 (2000.0) Inc. = 10.63049 +/- 0.00001 q = 1.5874415 +/- 0.0000028 AU e = 0.8577640 +/- 0.0000111 a = 11.1606138 +/- 0.0000782 AU n' = 0.02643455 +/- 0.00000028 P = 37.285 +/- 0.0003921 years (+/- 0.14 day) The predicted orbit for the 2052 return is as follows: T = 2052 Apr. 30.34772 TT Epoch = 2052 Apr. 13.0 TT Peri. = 167.59774 e = 0.8585781 Node = 21.30339 (2000.0) a = 11.2556133 AU Inc. = 10.62553 n'= 0.02610059 q = 1.5917903 AU P = 37.762 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 141230 703 0.4+ 1.1+ 150214 703 (0.3- 2.9+) 141025 G96 0.6+ 0.3- 141230 703 0.1+ 0.9+ 150214 703 1.6- 1.8+ 141025 G96 0.2+ 0.2+ 141230 703 0.4- 1.3+ 150214 703 0.3+ 1.2+ 141025 G96 0.3+ 0.3+ 2015/ 150220 D95 (2.0+ 0.5-) 141025 G96 0.5- 0.4+ 150108 F51 0.1- 0.1- 150220 D95 0.2- 0.7+ 141122 F51 0.1+ 0.1- 150108 F51 0.0 0.1- 150220 D95 0.5+ 0.9+ 141122 F51 0.0 0.1- 150108 F51 0.1- 0.0 150221 215 0.8+ 0.2+ 141122 F51 0.1+ 0.1- 150108 F51 0.1- 0.1- 150221 215 0.8+ 0.4+ 141123 W96 1.0+ 0.6- 150120 H06 0.2+ 0.7+ 150221 215 0.5+ 1.5+ 141123 W96 0.8- 0.3+ 150120 H06 (0.8+ 2.0+) 150224 W88 0.1- 0.1- 141123 291 0.8+ 1.6+ 150123 C51 0.2- 0.2+ 150224 W88 0.2+ 0.0 141123 291 0.2- 0.8+ 150123 C51 0.0 0.5+ 150224 W88 0.3+ 0.0 141123 291 0.1- 0.3+ 150123 C51 0.4- 0.0 150224 W88 0.1+ 0.3+ 141123 H06 (2.9+ 3.5+) 150123 C51 0.0 0.4+ 150225 F51 0.1+ 0.1- 141123 H06 (3.2+ 3.3+) 150123 C51 0.6+ 0.8+ 150225 F51 0.2+ 0.2- 141123 568 0.1+ 0.2- 150123 C51 0.7- 0.4+ 150225 F51 0.1+ 0.2- 141123 568 0.0 0.2- 150124 C51 0.3+ 0.5+ 150225 F51 0.1+ 0.2- 141123 568 0.1- 0.2- 150124 C51 0.4+ 0.8+ 150322 Q62 0.4+ 0.6+ 141124 291 0.1+ 0.5+ 150124 C51 0.2+ 0.4+ 150322 Q62 0.1+ 0.5+ 141124 291 0.0 0.3+ 150124 C51 0.1- 0.6+ 150327 F51 0.2+ 0.2- 141124 291 0.5- 0.5+ 150124 C51 0.5+ 0.3- 150327 F51 0.1+ 0.2- 141125 568 0.0 0.1- 150124 C51 0.1+ 0.5+ 150327 F51 0.2+ 0.2- 141125 568 0.1- 0.1- 150124 C51 0.2+ 0.6+ 150327 F51 0.1+ 0.1- 141125 568 0.0 0.1- 150124 C51 0.3+ 0.2+ 150328 H06 0.5+ 0.7- 141126 F51 0.1- 0.0 150125 C51 0.1- 0.9+ 150328 H06 0.2- 1.8- 141126 F51 0.1- 0.0 150125 C51 0.0 0.7+ 150329 G45 1.0- 0.0 141126 F51 0.1+ 0.0 150128 F51 0.0 0.0 150329 G45 0.9- 0.8+ 141126 F51 0.0 0.0 150128 F51 0.1- 0.0 150329 G45 0.7- 0.9+ 141130 F51 0.1- 0.1- 150128 F51 0.0 0.0 150329 G45 1.0- 0.5+ 141130 F51 0.1- 0.1- 150128 F51 0.1- 0.0 150329 G45 0.6+ 0.7+ 141130 F51 0.1- 0.1- 150130 F51 0.1+ 0.1- 150329 G45 0.2- 0.7+ 141220 I89 0.9+ 0.7+ 150130 F51 0.0 0.0 150401 W96 0.3- 0.5- 141220 I89 0.4+ 0.6+ 150130 F51 0.0 0.1- 150401 W96 1.5- 1.1+ 141220 I89 0.0 0.5+ 150130 F51 0.0 0.1- 150412 Y00 0.9- 1.4+ 141224 703 (0.3- 2.3+) 150131 Q62 0.3+ 0.3+ 150412 Y00 1.4- 0.5+ 141224 703 (0.2- 2.1+) 150131 Q62 0.3+ 0.2+ 150412 Y00 1.1- 0.1+ 141224 703 (2.7+ 2.0+) 150131 Q62 0.5+ 0.1+ 150415 W96 0.2- 0.5- 141226 I89 0.1+ 0.4+ 150214 H06 1.9- 1.3+ 150415 W96 0.8- 0.4- 141226 I89 0.0 0.3+ 150214 H06 (0.7+ 2.2+) 141230 703 0.4+ 0.8+ 150214 703 0.0 0.6+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 May 18